Hi
I need to be able to call a web service method, receive the dataset that web
method returns and store it in an access table. My problem is that I don't
know how to "receive" a complex type like a dataset and how to link it to
the access table that it is supposed to go in. Could someone please give me
a code example?
Thanks
Regards 8 1588
Hi John,
A complete sample it gets an image from disk puts that in an dataset, gives
it to a webserver where it is saved as a dataset, readed again and it uses
as transport a dataset using webservice.
(With the buttons on the form)
It is not ready yet there are no comment lines for that you have to wait
something longer,
However I hope this helps?
Cor
\\\needs a picturebox and 4 buttons on a windowform
Dim ds As New DataSet
Private abyt() As Byte
Private fo As New OpenFileDialog
Private sf As New SaveFileDialog
Private Sub Button1_Click(B yVal sender As System.Object, _
ByVal e As System.EventArg s) Handles Button1.Click
'Reading a picture from disk and put it in a bytearray
If fo.ShowDialog = DialogResult.OK Then
Dim fs As New IO.FileStream(f o.FileName, _
IO.FileMode.Ope n)
Dim br As New IO.BinaryReader (fs)
abyt = br.ReadBytes(CI nt(fs.Length))
br.Close()
'just to show the sample without a fileread error
Dim ms As New IO.MemoryStream (abyt)
Me.PictureBox1. Image = Image.FromStrea m(ms)
End If
End Sub
Private Sub Button2_Click(B yVal sender As System.Object, ByVal _
e As System.EventArg s) Handles Button2.Click
'writing a picture from a bytearray to disk
If sf.ShowDialog = DialogResult.OK Then
Dim fs As New IO.FileStream(s f.FileName, _
IO.FileMode.Cre ateNew)
Dim bw As New IO.BinaryWriter (fs)
bw.Write(abyt)
bw.Close()
End If
End Sub
Private Sub Button3_Click(B yVal sender As System.Object, ByVal _
e As System.EventArg s) Handles Button3.Click
'writing a bytearray to a webservice dataset
Dim ws As New localhost.DataB aseUpdate
ws.SetDataset(a byt)
End Sub
Private Sub Button4_Click(B yVal sender As System.Object, _
ByVal e As System.EventArg s) Handles Button4.Click
'reading a picture from a webservice dataset
Dim ws As New localhost.DataB aseUpdate
abyt = ws.GetByte
Dim ms As New IO.MemoryStream (abyt)
Me.PictureBox1. Image = Image.FromStrea m(ms)
End Sub
End Class
////
\\\\Webservice
<WebMethod()> _
Public Function GetByte() As Byte()
Dim ds As New DataSet
ds.ReadXml("C:\ wsblob.xml")
Return CType(ds.Tables (0).Rows(0)(0), Byte())
End Function
<WebMethod()> _
Public Sub SetDataset(ByVa l abyte As Byte())
Dim ds As New DataSet
ds.Tables.Add(N ew DataTable("Phot o"))
ds.Tables(0).Co lumns.Add(New DataColumn("Sam ple"))
ds.Tables(0).Co lumns(0).DataTy pe = GetType(System. Byte())
ds.Tables(0).Ro ws.Add(ds.Table s(0).NewRow)
ds.Tables(0).Ro ws(0)(0) = abyte
ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema)
End Sub
////
Hi,
HYPERLINK
"http://www.onteorasoft ware.com/downloads/DibertWebServic eExample.zip"ht tp://www.onteorasoft ware.com/downloads/DibertWebServic eExample.zip
Ken
------------------------------------
From: John [mailto:jo**@nos pam.infovis.co. uk]
Sent: Tuesday, June 22, 2004 1:48 PM
To: microsoft.publi c.dotnet.langua ges.vb
Subject: Using web service
Hi
I need to be able to call a web service method, receive the dataset that
web
method returns and store it in an access table. My problem is that I
don't
know how to "receive" a complex type like a dataset and how to link it
to
the access table that it is supposed to go in. Could someone please give
me
a code example?
Thanks
Regards
--
Incoming mail is certified Virus Free.
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Thanks for this. I start reading a remote dataset in bytes wouldn't it be
too slow? Isn't there a way to read at least a record at a time? Otherwise,
can I receive and save the whole dataset locally as xml file, on which I can
open a local dataset?
Thanks
Regards
"Ken Tucker [MVP]" <vb***@bellsout h.net> wrote in message
news:uQ******** ******@TK2MSFTN GP10.phx.gbl... Hi, HYPERLINK
"http://www.onteorasoft ware.com/downloads/DibertWebServic eExample.zip"ht tp:/
/www.onteorasoft ware.com/downloads/DibertWebServic eExample.zip
Ken
------------------------------------
From: John [mailto:jo**@nos pam.infovis.co. uk] Sent: Tuesday, June 22, 2004 1:48 PM To: microsoft.publi c.dotnet.langua ges.vb Subject: Using web service Hi
I need to be able to call a web service method, receive the dataset that web method returns and store it in an access table. My problem is that I don't know how to "receive" a complex type like a dataset and how to link it to the access table that it is supposed to go in. Could someone please give me a code example?
Thanks
Regards
-- Incoming mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.230 / Virus Database: 263.3.3 - Release Date: 6/18/2004 -- Outgoing mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.230 / Virus Database: 263.3.3 - Release Date: 6/18/2004
Hi John,
I am curious why you ignore my complete working sample of an XML dataset
with a webservice which does almost exactly as you describe (except the
simple action to place it in an access database)?
Cor
Hi Cor
Thanks for that.
Where does ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema) store the
xml file? On the pc calling the web service or the server where web service
residues?
My application is slightly different in that I want the remote dataset to
end up in a local access table. For an image image.fromstrea m makes it easy
but is there an easy way to get the remote dataset into an access table too?
Thanks
Regards
"Cor Ligthert" <no**********@p lanet.nl> wrote in message
news:OE******** ******@TK2MSFTN GP12.phx.gbl... Hi John,
A complete sample it gets an image from disk puts that in an dataset,
gives it to a webserver where it is saved as a dataset, readed again and it uses as transport a dataset using webservice. (With the buttons on the form)
It is not ready yet there are no comment lines for that you have to wait something longer,
However I hope this helps?
Cor
\\\needs a picturebox and 4 buttons on a windowform Dim ds As New DataSet Private abyt() As Byte Private fo As New OpenFileDialog Private sf As New SaveFileDialog Private Sub Button1_Click(B yVal sender As System.Object, _ ByVal e As System.EventArg s) Handles Button1.Click 'Reading a picture from disk and put it in a bytearray If fo.ShowDialog = DialogResult.OK Then Dim fs As New IO.FileStream(f o.FileName, _ IO.FileMode.Ope n) Dim br As New IO.BinaryReader (fs) abyt = br.ReadBytes(CI nt(fs.Length)) br.Close() 'just to show the sample without a fileread error Dim ms As New IO.MemoryStream (abyt) Me.PictureBox1. Image = Image.FromStrea m(ms) End If End Sub Private Sub Button2_Click(B yVal sender As System.Object, ByVal _ e As System.EventArg s) Handles Button2.Click 'writing a picture from a bytearray to disk If sf.ShowDialog = DialogResult.OK Then Dim fs As New IO.FileStream(s f.FileName, _ IO.FileMode.Cre ateNew) Dim bw As New IO.BinaryWriter (fs) bw.Write(abyt) bw.Close() End If End Sub Private Sub Button3_Click(B yVal sender As System.Object, ByVal _ e As System.EventArg s) Handles Button3.Click 'writing a bytearray to a webservice dataset Dim ws As New localhost.DataB aseUpdate ws.SetDataset(a byt) End Sub Private Sub Button4_Click(B yVal sender As System.Object, _ ByVal e As System.EventArg s) Handles Button4.Click 'reading a picture from a webservice dataset Dim ws As New localhost.DataB aseUpdate abyt = ws.GetByte Dim ms As New IO.MemoryStream (abyt) Me.PictureBox1. Image = Image.FromStrea m(ms) End Sub End Class //// \\\\Webservice <WebMethod()> _ Public Function GetByte() As Byte() Dim ds As New DataSet ds.ReadXml("C:\ wsblob.xml") Return CType(ds.Tables (0).Rows(0)(0), Byte()) End Function <WebMethod()> _ Public Sub SetDataset(ByVa l abyte As Byte()) Dim ds As New DataSet ds.Tables.Add(N ew DataTable("Phot o")) ds.Tables(0).Co lumns.Add(New DataColumn("Sam ple")) ds.Tables(0).Co lumns(0).DataTy pe = GetType(System. Byte()) ds.Tables(0).Ro ws.Add(ds.Table s(0).NewRow) ds.Tables(0).Ro ws(0)(0) = abyte ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema) End Sub ////
Hi John,
You can just move it into the dataset of the acces file, or when the dataset
is equal to the access table you can even insert it. I do not believe in
that because when you than does that twice you have a constraint error. I
think it is better just to get the item from the dataset and set that in the
with the key readed access datatable and than update that.
Than you can update when it exist and insert it when it is new using the
normal dataadapter technique.
However where comes your data from, than I can maybe make a sample what
looks something more like that.
However I am writing this while you no that there is EK, so I review this
tomorrow when this is a problem. Message that than.
In my opinion it is even easier to put it in an Access file than writting it
to disk.
A pity you did not answer earlier, I am busy tomorrow when I have time I
will try to give you an example of that tomorrow but that will than not
early
(When you do not need that message that than)
Cor Thanks for that.
Where does ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema) store
the xml file? On the pc calling the web service or the server where web
service residues?
My application is slightly different in that I want the remote dataset to end up in a local access table. For an image image.fromstrea m makes it
easy but is there an easy way to get the remote dataset into an access table
too? Thanks
Regards "Cor Ligthert" <no**********@p lanet.nl> wrote in message news:OE******** ******@TK2MSFTN GP12.phx.gbl... Hi John,
A complete sample it gets an image from disk puts that in an dataset, gives it to a webserver where it is saved as a dataset, readed again and it
uses as transport a dataset using webservice. (With the buttons on the form)
It is not ready yet there are no comment lines for that you have to wait something longer,
However I hope this helps?
Cor
\\\needs a picturebox and 4 buttons on a windowform Dim ds As New DataSet Private abyt() As Byte Private fo As New OpenFileDialog Private sf As New SaveFileDialog Private Sub Button1_Click(B yVal sender As System.Object, _ ByVal e As System.EventArg s) Handles Button1.Click 'Reading a picture from disk and put it in a bytearray If fo.ShowDialog = DialogResult.OK Then Dim fs As New IO.FileStream(f o.FileName, _ IO.FileMode.Ope n) Dim br As New IO.BinaryReader (fs) abyt = br.ReadBytes(CI nt(fs.Length)) br.Close() 'just to show the sample without a fileread error Dim ms As New IO.MemoryStream (abyt) Me.PictureBox1. Image = Image.FromStrea m(ms) End If End Sub Private Sub Button2_Click(B yVal sender As System.Object, ByVal _ e As System.EventArg s) Handles Button2.Click 'writing a picture from a bytearray to disk If sf.ShowDialog = DialogResult.OK Then Dim fs As New IO.FileStream(s f.FileName, _ IO.FileMode.Cre ateNew) Dim bw As New IO.BinaryWriter (fs) bw.Write(abyt) bw.Close() End If End Sub Private Sub Button3_Click(B yVal sender As System.Object, ByVal _ e As System.EventArg s) Handles Button3.Click 'writing a bytearray to a webservice dataset Dim ws As New localhost.DataB aseUpdate ws.SetDataset(a byt) End Sub Private Sub Button4_Click(B yVal sender As System.Object, _ ByVal e As System.EventArg s) Handles Button4.Click 'reading a picture from a webservice dataset Dim ws As New localhost.DataB aseUpdate abyt = ws.GetByte Dim ms As New IO.MemoryStream (abyt) Me.PictureBox1. Image = Image.FromStrea m(ms) End Sub End Class //// \\\\Webservice <WebMethod()> _ Public Function GetByte() As Byte() Dim ds As New DataSet ds.ReadXml("C:\ wsblob.xml") Return CType(ds.Tables (0).Rows(0)(0), Byte()) End Function <WebMethod()> _ Public Sub SetDataset(ByVa l abyte As Byte()) Dim ds As New DataSet ds.Tables.Add(N ew DataTable("Phot o")) ds.Tables(0).Co lumns.Add(New DataColumn("Sam ple")) ds.Tables(0).Co lumns(0).DataTy pe = GetType(System. Byte()) ds.Tables(0).Ro ws.Add(ds.Table s(0).NewRow) ds.Tables(0).Ro ws(0)(0) = abyte ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema) End Sub ////
Hi John,
As told above simple (I have made the access database in this sample, that
is the major part, while I as well have used the dataset which comes direct
from the Access database to keep the sample simple)
I hope this helps?
Cor
\\\
'Needs a form with 2 buttons
'set a reference to ado ext 2.7 for blabla
Private conn As New
OleDb.OleDbConn ection("Provide r=Microsoft.Jet .OLEDB.4.0;" & _
"Data Source=C:\db1.m db;User Id=admin;Passwo rd=;")
Private Sub Button1_Click(B yVal sender As System.Object, _
ByVal e As System.EventArg s) Handles Button1.Click
Dim da As New OleDb.OleDbData Adapter("Select * from countries",
conn)
Dim ds As New DataSet
da.Fill(ds)
ds.Tables(0).Ro ws.Add(ds.Table s(0).NewRow())
ds.Tables(0).Ro ws(0)(1) = 1
ds.Tables(0).Ro ws(0)(2) = "Holland"
Dim ws As New localhost.DataB aseUpdate
ws.SetDataset(d s)
End Sub
Private Sub Button2_Click(B yVal sender As System.Object, ByVal _
e As System.EventArg s) Handles Button2.Click
Dim da As New OleDb.OleDbData Adapter("Select * from countries",
conn)
Dim ds As New DataSet
Dim cmd As New OleDb.OleDbComm andBuilder(da)
Dim ws As New localhost.DataB aseUpdate
ds = ws.GetDataset()
da.Update(ds)
End Sub
Private Sub Form1_Load(ByVa l sender As Object, _
ByVal e As System.EventArg s) Handles MyBase.Load
Dim catNewDB As New ADOX.Catalog
Dim fi As New IO.FileInfo("c: \db1.mdb")
If fi.Exists Then
If MessageBox.Show ("Delete?", "Existing File db1.mdb", _
MessageBoxButto ns.YesNo) = DialogResult.Ye s Then
fi.Delete()
Else
Exit Sub
End If
End If
catNewDB.Create ("Provider=Micr osoft.Jet.OLEDB .4.0;" & "Data
Source=C:\db1.m db")
Dim cmd As New OleDb.OleDbComm and("CREATE TABLE countries ( " & _
"AutoId int identity ," & _
"Id int NOT NULL," & _
"Name NVarchar(50)," & _
"CONSTRAINT [pk_AutoId] PRIMARY KEY (AutoId)) ", conn)
conn.Open()
cmd.ExecuteNonQ uery()
conn.Close()
End Sub
///
\\\
<WebMethod()> _
Public Function GetDataset() As DataSet
Dim ds As New DataSet
ds.ReadXml("C:\ wsTest.xml")
Return ds
End Function
<WebMethod()> _
Public Sub SetDataset(ByVa l ds As DataSet)
ds.WriteXml("C: \wsTest.xml", XmlWriteMode.Wr iteSchema)
End Sub
///
, You can just move it into the dataset of the acces file, or when the
dataset is equal to the access table you can even insert it. I do not believe in that because when you than does that twice you have a constraint error. I think it is better just to get the item from the dataset and set that in
the with the key readed access datatable and than update that.
Than you can update when it exist and insert it when it is new using the normal dataadapter technique.
However where comes your data from, than I can maybe make a sample what looks something more like that.
However I am writing this while you no that there is EK, so I review this tomorrow when this is a problem. Message that than.
In my opinion it is even easier to put it in an Access file than writting
it to disk.
A pity you did not answer earlier, I am busy tomorrow when I have time I will try to give you an example of that tomorrow but that will than not early
(When you do not need that message that than)
Cor
Thanks for that.
Where does ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema) store
the xml file? On the pc calling the web service or the server where web service residues?
My application is slightly different in that I want the remote dataset
to end up in a local access table. For an image image.fromstrea m makes it easy but is there an easy way to get the remote dataset into an access table too? Thanks
Regards "Cor Ligthert" <no**********@p lanet.nl> wrote in message news:OE******** ******@TK2MSFTN GP12.phx.gbl... Hi John,
A complete sample it gets an image from disk puts that in an dataset, gives it to a webserver where it is saved as a dataset, readed again and it
uses as transport a dataset using webservice. (With the buttons on the form)
It is not ready yet there are no comment lines for that you have to
wait something longer,
However I hope this helps?
Cor
\\\needs a picturebox and 4 buttons on a windowform Dim ds As New DataSet Private abyt() As Byte Private fo As New OpenFileDialog Private sf As New SaveFileDialog Private Sub Button1_Click(B yVal sender As System.Object, _ ByVal e As System.EventArg s) Handles Button1.Click 'Reading a picture from disk and put it in a bytearray If fo.ShowDialog = DialogResult.OK Then Dim fs As New IO.FileStream(f o.FileName, _ IO.FileMode.Ope n) Dim br As New IO.BinaryReader (fs) abyt = br.ReadBytes(CI nt(fs.Length)) br.Close() 'just to show the sample without a fileread error Dim ms As New IO.MemoryStream (abyt) Me.PictureBox1. Image = Image.FromStrea m(ms) End If End Sub Private Sub Button2_Click(B yVal sender As System.Object, ByVal _ e As System.EventArg s) Handles Button2.Click 'writing a picture from a bytearray to disk If sf.ShowDialog = DialogResult.OK Then Dim fs As New IO.FileStream(s f.FileName, _ IO.FileMode.Cre ateNew) Dim bw As New IO.BinaryWriter (fs) bw.Write(abyt) bw.Close() End If End Sub Private Sub Button3_Click(B yVal sender As System.Object, ByVal _ e As System.EventArg s) Handles Button3.Click 'writing a bytearray to a webservice dataset Dim ws As New localhost.DataB aseUpdate ws.SetDataset(a byt) End Sub Private Sub Button4_Click(B yVal sender As System.Object, _ ByVal e As System.EventArg s) Handles Button4.Click 'reading a picture from a webservice dataset Dim ws As New localhost.DataB aseUpdate abyt = ws.GetByte Dim ms As New IO.MemoryStream (abyt) Me.PictureBox1. Image = Image.FromStrea m(ms) End Sub End Class //// \\\\Webservice <WebMethod()> _ Public Function GetByte() As Byte() Dim ds As New DataSet ds.ReadXml("C:\ wsblob.xml") Return CType(ds.Tables (0).Rows(0)(0), Byte()) End Function <WebMethod()> _ Public Sub SetDataset(ByVa l abyte As Byte()) Dim ds As New DataSet ds.Tables.Add(N ew DataTable("Phot o")) ds.Tables(0).Co lumns.Add(New DataColumn("Sam ple")) ds.Tables(0).Co lumns(0).DataTy pe = GetType(System. Byte()) ds.Tables(0).Ro ws.Add(ds.Table s(0).NewRow) ds.Tables(0).Ro ws(0)(0) = abyte ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema) End Sub ////
Hi Cor
That's excellent! Thanks for this. Works fine for me.
Regards
"Cor Ligthert" <no**********@p lanet.nl> wrote in message
news:%2******** ********@TK2MSF TNGP09.phx.gbl. .. Hi John,
As told above simple (I have made the access database in this sample, that is the major part, while I as well have used the dataset which comes
direct from the Access database to keep the sample simple)
I hope this helps?
Cor
\\\ 'Needs a form with 2 buttons 'set a reference to ado ext 2.7 for blabla Private conn As New OleDb.OleDbConn ection("Provide r=Microsoft.Jet .OLEDB.4.0;" & _ "Data Source=C:\db1.m db;User Id=admin;Passwo rd=;") Private Sub Button1_Click(B yVal sender As System.Object, _ ByVal e As System.EventArg s) Handles Button1.Click Dim da As New OleDb.OleDbData Adapter("Select * from countries", conn) Dim ds As New DataSet da.Fill(ds) ds.Tables(0).Ro ws.Add(ds.Table s(0).NewRow()) ds.Tables(0).Ro ws(0)(1) = 1 ds.Tables(0).Ro ws(0)(2) = "Holland" Dim ws As New localhost.DataB aseUpdate ws.SetDataset(d s) End Sub Private Sub Button2_Click(B yVal sender As System.Object, ByVal _ e As System.EventArg s) Handles Button2.Click Dim da As New OleDb.OleDbData Adapter("Select * from countries", conn) Dim ds As New DataSet Dim cmd As New OleDb.OleDbComm andBuilder(da) Dim ws As New localhost.DataB aseUpdate ds = ws.GetDataset() da.Update(ds) End Sub Private Sub Form1_Load(ByVa l sender As Object, _ ByVal e As System.EventArg s) Handles MyBase.Load Dim catNewDB As New ADOX.Catalog Dim fi As New IO.FileInfo("c: \db1.mdb") If fi.Exists Then If MessageBox.Show ("Delete?", "Existing File db1.mdb", _ MessageBoxButto ns.YesNo) = DialogResult.Ye s Then fi.Delete() Else Exit Sub End If End If catNewDB.Create ("Provider=Micr osoft.Jet.OLEDB .4.0;" & "Data Source=C:\db1.m db") Dim cmd As New OleDb.OleDbComm and("CREATE TABLE countries ( " & _ "AutoId int identity ," & _ "Id int NOT NULL," & _ "Name NVarchar(50)," & _ "CONSTRAINT [pk_AutoId] PRIMARY KEY (AutoId)) ",
conn) conn.Open() cmd.ExecuteNonQ uery() conn.Close() End Sub /// \\\ <WebMethod()> _ Public Function GetDataset() As DataSet Dim ds As New DataSet ds.ReadXml("C:\ wsTest.xml") Return ds End Function <WebMethod()> _ Public Sub SetDataset(ByVa l ds As DataSet) ds.WriteXml("C: \wsTest.xml", XmlWriteMode.Wr iteSchema) End Sub ///
, You can just move it into the dataset of the acces file, or when the dataset is equal to the access table you can even insert it. I do not believe in that because when you than does that twice you have a constraint error.
I think it is better just to get the item from the dataset and set that in the with the key readed access datatable and than update that.
Than you can update when it exist and insert it when it is new using the normal dataadapter technique.
However where comes your data from, than I can maybe make a sample what looks something more like that.
However I am writing this while you no that there is EK, so I review
this tomorrow when this is a problem. Message that than.
In my opinion it is even easier to put it in an Access file than
writting it to disk.
A pity you did not answer earlier, I am busy tomorrow when I have time I will try to give you an example of that tomorrow but that will than not early
(When you do not need that message that than)
Cor
Thanks for that.
Where does ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema)
store the xml file? On the pc calling the web service or the server where web service residues?
My application is slightly different in that I want the remote dataset to end up in a local access table. For an image image.fromstrea m makes it easy but is there an easy way to get the remote dataset into an access
table too? Thanks
Regards "Cor Ligthert" <no**********@p lanet.nl> wrote in message news:OE******** ******@TK2MSFTN GP12.phx.gbl... > Hi John, > > A complete sample it gets an image from disk puts that in an
dataset, gives > it to a webserver where it is saved as a dataset, readed again and
it uses > as transport a dataset using webservice. > (With the buttons on the form) > > It is not ready yet there are no comment lines for that you have to
wait > something longer, > > However I hope this helps? > > Cor > > \\\needs a picturebox and 4 buttons on a windowform > Dim ds As New DataSet > Private abyt() As Byte > Private fo As New OpenFileDialog > Private sf As New SaveFileDialog > Private Sub Button1_Click(B yVal sender As System.Object, _ > ByVal e As System.EventArg s) Handles Button1.Click > 'Reading a picture from disk and put it in a bytearray > If fo.ShowDialog = DialogResult.OK Then > Dim fs As New IO.FileStream(f o.FileName, _ > IO.FileMode.Ope n) > Dim br As New IO.BinaryReader (fs) > abyt = br.ReadBytes(CI nt(fs.Length)) > br.Close() > 'just to show the sample without a fileread error > Dim ms As New IO.MemoryStream (abyt) > Me.PictureBox1. Image = Image.FromStrea m(ms) > End If > End Sub > Private Sub Button2_Click(B yVal sender As System.Object, ByVal _ > e As System.EventArg s) Handles Button2.Click > 'writing a picture from a bytearray to disk > If sf.ShowDialog = DialogResult.OK Then > Dim fs As New IO.FileStream(s f.FileName, _ > IO.FileMode.Cre ateNew) > Dim bw As New IO.BinaryWriter (fs) > bw.Write(abyt) > bw.Close() > End If > End Sub > Private Sub Button3_Click(B yVal sender As System.Object, ByVal _ > e As System.EventArg s) Handles Button3.Click > 'writing a bytearray to a webservice dataset > Dim ws As New localhost.DataB aseUpdate > ws.SetDataset(a byt) > End Sub > Private Sub Button4_Click(B yVal sender As System.Object, _ > ByVal e As System.EventArg s) Handles Button4.Click > 'reading a picture from a webservice dataset > Dim ws As New localhost.DataB aseUpdate > abyt = ws.GetByte > Dim ms As New IO.MemoryStream (abyt) > Me.PictureBox1. Image = Image.FromStrea m(ms) > End Sub > End Class > //// > \\\\Webservice > <WebMethod()> _ > Public Function GetByte() As Byte() > Dim ds As New DataSet > ds.ReadXml("C:\ wsblob.xml") > Return CType(ds.Tables (0).Rows(0)(0), Byte()) > End Function > <WebMethod()> _ > Public Sub SetDataset(ByVa l abyte As Byte()) > Dim ds As New DataSet > ds.Tables.Add(N ew DataTable("Phot o")) > ds.Tables(0).Co lumns.Add(New DataColumn("Sam ple")) > ds.Tables(0).Co lumns(0).DataTy pe = GetType(System. Byte()) > ds.Tables(0).Ro ws.Add(ds.Table s(0).NewRow) > ds.Tables(0).Ro ws(0)(0) = abyte > ds.WriteXml("C: \wsblob.xml", XmlWriteMode.Wr iteSchema) > End Sub > //// > >
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last post by:
Yesterday afternoon I was getting the following errors in a windows service:
'DatabaseManager.DataComponent', 'Error', '3 Errors:
Line: 0 - Metadata file 'ScriptingMethods.dll' could not be found
Line: 0 - Metadata file 'RemoteLoader.dll' could not be found
Line: 0 - Metadata file 'wwScripting.dll' could not be found'
Service ran all night fine. This morning I reconnected to the process and
the errors are no longer there. Only thing...
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by: pmud |
last post by:
Hi,
I need to use an Excel Sheet in ASP.NET application so that the users can
enter (copy, paste ) large number of rows in this Excel Sheet. Also, Whatever
the USER ENETRS needs to go to the SQL DATABASE, probably by the click of a
button.
Is this possible? & what is the BEST APPROACH for doing this? & also if any
links are there do tell those to me too coz I have no idea how to go about
doing it.
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by: Derek Martin |
last post by:
I am creating a windows service and have added a reference to a DLL project
that I have created. That DLL file is correctly referenced in both a
windows app and a web app, all in the same solution, so I thought I could do
the same for a service project. However, after successfully adding the
reference and making sure the namespaces were correct, I cannot see any of
my public methods and functions from the DLL file.
Is there anything...
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by: Michael Hoehne |
last post by:
Hi,
I'm currently facing a problem with a mixed environment using .NET 1.1 and
..NET 2.0 web services.
We have a client application (the "client", system 1) running on .NET
2.0/WinXP, calling our web service (The "Web Service Server") running on a
separate machine (also .NET 2.0, Win2003 Server, system 2).
The web service server (system 2) itself makes calls to methods in the CRM
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by: Sandy |
last post by:
I am defining a web service to receive data that represents an
application form and that returns a message indicating if the
application form has been successfully validated or not, listing any
errors.
I would like to use XPath to define the validation rules that will be
executed within the web service. Clearly, to do this my data has to be
in XML format.
However, I would like my WSDL to describe explicitly the schema of the
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by: =?Utf-8?B?RGFuZGFuIFpoYW5n?= |
last post by:
Now I have a web application, a web service and a SQL Server database.
The Web application will invoke the web service, the web service
invokes the SQL Server stored procedure.
I let the web service run in an application pool which runs under a
domain user, this domain user has permissions of accessing database and the
connection to database is trusted connection. All these work well.
The web application will be used in internet (not...
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by: =?Utf-8?B?TWFuaQ==?= |
last post by:
Hi All,
Problem in deploying my WebService developed using Asp.net WebServices 2005.
I have designed simple WebService using Asp.net Webservices 2.0 , The
webservice look this ,
using System;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
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by: smithj14 |
last post by:
I have a form that has an option group (fraReports) which holds a list of reports to print. This part works fine. I select a report name and click print and that report opens.
Now I want to add a text box to enter a service date that will open the selected report using the text box value (service date) to filter the report to only those dates. I have the field using the format "mmmm-yyyy" on all my forms and reports so it will show May-2009....
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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