I am currently learning asp.net (vb) with Web Matrix. I am building an
intranet page that will have an editable datagrid on it. I have got the
datagrid to populate OK but I cannot get the Update method to work
correctly.
I click on edit and and the non-readonly field become editable as in http://www.russgreen.net/software/ne...creenshot1.gif
The update button does nothing. See http://www.russgreen.net/software/ne...creenshot2.gif
Error page http://www.russgreen.net/software/ne...nUPDATEstateme
nt_.htm
..aspx page http://www.russgreen.net/software/ne..._list_new.aspx
Can someone please help explain this please?
Sub DataGrid_Update (s As Object, e As DataGridCommand EventArgs )
'create edit text boxes
Dim txtName As textbox = E.Item.cells(2) .Controls(0)
Dim txtStatus As textbox = E.Item.cells(3) .Controls(0)
Dim txtAction As textbox = E.Item.cells(4) .Controls(0)
Dim txtStaff As textbox = E.Item.cells(5) .Controls(0)
'update SQL
Dim strUpdateSql As String ="UPDATE Projects SET" & _
" Name =@Name, Status =@Status, Action = @Action, Staff = @Staff" &
_
" WHERE ProjectID = @ProjectID"
'connection stuff
Dim conn As OleDbConnection = New OleDbConnection (strConn)
conn.Open()
'command Object to Execute the SQL
Dim cmd As OleDbCommand = New OleDbCommand(st rUpdateSql, conn)
cmd.Parameters. Add(New OleDbParameter( "@Name", txtName.text))
cmd.Parameters. Add(New OleDbParameter( "@Status", txtStatus.text) )
cmd.Parameters. Add(New OleDbParameter( "@Action", txtAction.text) )
cmd.Parameters. Add(New OleDbParameter( "@Staff", txtStaff.text))
cmd.Parameters. Add(New OleDbParameter( "@ProjectID ",
CType(e.Item.Ce lls(0).Text, Long)))
cmd.ExecuteNonQ uery()
'do housekeeping
DataGrid1.EditI temIndex = -1
conn.close
'rebind
BindData()
End Sub 3  7690 
Hi Russ,
You need to use the last parameter @product ID
cmd.Parameters. Add(New OleDbParameter( "@ProjectID ",
DataGrid1.DataK eys(e.Item.Item Index))
It's interesting your sub is
DataGrid_Update but the ID of the object seems to be DataGrid1. I would have
expected DataGrid1_Updat eCommand but I suppose that could just be the way
that datamatrix wires it up. Then again... perhaps I'm wrong.
"Russ Green" <ru**********@h otmail.com> wrote in message
news:ew******** ******@TK2MSFTN GP12.phx.gbl... I am currently learning asp.net (vb) with Web Matrix. I am building an
intranet page that will have an editable datagrid on it. I have got the
datagrid to populate OK but I cannot get the Update method to work
correctly.
I click on edit and and the non-readonly field become editable as in
http://www.russgreen.net/software/ne...creenshot1.gif
The update button does nothing. See
http://www.russgreen.net/software/ne...creenshot2.gif
Error page
http://www.russgreen.net/software/ne...nUPDATEstateme nt_.htm
.aspx page
http://www.russgreen.net/software/ne..._list_new.aspx
Can someone please help explain this please?
Sub DataGrid_Update (s As Object, e As DataGridCommand EventArgs )
'create edit text boxes
Dim txtName As textbox = E.Item.cells(2) .Controls(0)
Dim txtStatus As textbox = E.Item.cells(3) .Controls(0)
Dim txtAction As textbox = E.Item.cells(4) .Controls(0)
Dim txtStaff As textbox = E.Item.cells(5) .Controls(0)
'update SQL
Dim strUpdateSql As String ="UPDATE Projects SET" & _
" Name =@Name, Status =@Status, Action = @Action, Staff = @Staff"
& _
" WHERE ProjectID = @ProjectID"
'connection stuff
Dim conn As OleDbConnection = New OleDbConnection (strConn)
conn.Open()
'command Object to Execute the SQL
Dim cmd As OleDbCommand = New OleDbCommand(st rUpdateSql, conn)
cmd.Parameters. Add(New OleDbParameter( "@Name", txtName.text))
cmd.Parameters. Add(New OleDbParameter( "@Status", txtStatus.text) )
cmd.Parameters. Add(New OleDbParameter( "@Action", txtAction.text) )
cmd.Parameters. Add(New OleDbParameter( "@Staff", txtStaff.text))
cmd.Parameters. Add(New OleDbParameter( "@ProjectID ",
CType(e.Item.Ce lls(0).Text, Long)))
cmd.ExecuteNonQ uery()
'do housekeeping
DataGrid1.EditI temIndex = -1
conn.close
'rebind
BindData()
End Sub
OK
I sorted it. Well almost. The attached page works on the Webmatrix testing
server but not on IIS. Under IIS the page render OK but UPDATE generate the
following exception: -
System.Data.Ole Db.OleDbExcepti on: Operation must use an updateable query. at
System.Data.Ole Db.OleDbCommand .ExecuteCommand TextErrorHandli ng(Int32 hr) at
System.Data.Ole Db.OleDbCommand .ExecuteCommand TextForSingleRe sult(tagDBPARAM S
dbParams, Object& executeResult) at
System.Data.Ole Db.OleDbCommand .ExecuteCommand Text(Object& executeResult) at
System.Data.Ole Db.OleDbCommand .ExecuteCommand (CommandBehavio r behavior,
Object& executeResult) at
System.Data.Ole Db.OleDbCommand .ExecuteReaderI nternal(Command Behavior
behavior, String method) at System.Data.Ole Db.OleDbCommand .ExecuteNonQuer y()
at ASP.db_project_ list_aspx.DataG rid_Update(Obje ct s,
DataGridCommand EventArgs e) in D:\Web Design
Work\SALT_INTRA NET\asp_net\db_ project_list.as px:line 68
Any Ideas?
Russ
"John Toop" <jt***@rogers.c om> wrote in message
news:e$******** ******@TK2MSFTN GP10.phx.gbl... Hi Russ,
You need to use the last parameter @product ID
cmd.Parameters. Add(New OleDbParameter( "@ProjectID ",
DataGrid1.DataK eys(e.Item.Item Index))
It's interesting your sub is
DataGrid_Update but the ID of the object seems to be DataGrid1. I would
have expected DataGrid1_Updat eCommand but I suppose that could just be the way
that datamatrix wires it up. Then again... perhaps I'm wrong.
"Russ Green" <ru**********@h otmail.com> wrote in message
news:ew******** ******@TK2MSFTN GP12.phx.gbl... I am currently learning asp.net (vb) with Web Matrix. I am building an
intranet page that will have an editable datagrid on it. I have got the
datagrid to populate OK but I cannot get the Update method to work
correctly.
I click on edit and and the non-readonly field become editable as in
http://www.russgreen.net/software/ne...creenshot1.gif
The update button does nothing. See
http://www.russgreen.net/software/ne...creenshot2.gif
Error page
http://www.russgreen.net/software/ne...nUPDATEstateme nt_.htm
.aspx page
http://www.russgreen.net/software/ne..._list_new.aspx
Can someone please help explain this please?
Sub DataGrid_Update (s As Object, e As DataGridCommand EventArgs )
'create edit text boxes
Dim txtName As textbox = E.Item.cells(2) .Controls(0)
Dim txtStatus As textbox = E.Item.cells(3) .Controls(0)
Dim txtAction As textbox = E.Item.cells(4) .Controls(0)
Dim txtStaff As textbox = E.Item.cells(5) .Controls(0)
'update SQL
Dim strUpdateSql As String ="UPDATE Projects SET" & _
" Name =@Name, Status =@Status, Action = @Action, Staff =
@Staff" & _
" WHERE ProjectID = @ProjectID"
'connection stuff
Dim conn As OleDbConnection = New OleDbConnection (strConn)
conn.Open()
'command Object to Execute the SQL
Dim cmd As OleDbCommand = New OleDbCommand(st rUpdateSql, conn)
cmd.Parameters. Add(New OleDbParameter( "@Name", txtName.text))
cmd.Parameters. Add(New OleDbParameter( "@Status", txtStatus.text) )
cmd.Parameters. Add(New OleDbParameter( "@Action", txtAction.text) )
cmd.Parameters. Add(New OleDbParameter( "@Staff", txtStaff.text))
cmd.Parameters. Add(New OleDbParameter( "@ProjectID ",
CType(e.Item.Ce lls(0).Text, Long)))
cmd.ExecuteNonQ uery()
'do housekeeping
DataGrid1.EditI temIndex = -1
conn.close
'rebind
BindData()
End Sub
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system ( http://www.grisoft.com).
Version: 6.0.500 / Virus Database: 298 - Release Date: 10/07/2003
Hi Russ,
you are getting this error "Operation must use an updateable query" may for two reasons...
1. Folder where you are having MDB file doesnot have permission for your asp.net applications.
2. Give the permission for MDB file.
Rajeev
"Russ Green" <ru**********@h otmail.com> wrote in message news:ul******** ******@TK2MSFTN GP12.phx.gbl... OK
I sorted it. Well almost. The attached page works on the Webmatrix testing
server but not on IIS. Under IIS the page render OK but UPDATE generate the
following exception: -
System.Data.Ole Db.OleDbExcepti on: Operation must use an updateable query. at
System.Data.Ole Db.OleDbCommand .ExecuteCommand TextErrorHandli ng(Int32 hr) at
System.Data.Ole Db.OleDbCommand .ExecuteCommand TextForSingleRe sult(tagDBPARAM S
dbParams, Object& executeResult) at
System.Data.Ole Db.OleDbCommand .ExecuteCommand Text(Object& executeResult) at
System.Data.Ole Db.OleDbCommand .ExecuteCommand (CommandBehavio r behavior,
Object& executeResult) at
System.Data.Ole Db.OleDbCommand .ExecuteReaderI nternal(Command Behavior
behavior, String method) at System.Data.Ole Db.OleDbCommand .ExecuteNonQuer y()
at ASP.db_project_ list_aspx.DataG rid_Update(Obje ct s,
DataGridCommand EventArgs e) in D:\Web Design
Work\SALT_INTRA NET\asp_net\db_ project_list.as px:line 68
Any Ideas?
Russ
"John Toop" <jt***@rogers.c om> wrote in message
news:e$******** ******@TK2MSFTN GP10.phx.gbl... Hi Russ,
You need to use the last parameter @product ID
cmd.Parameters. Add(New OleDbParameter( "@ProjectID ",
DataGrid1.DataK eys(e.Item.Item Index))
It's interesting your sub is
DataGrid_Update but the ID of the object seems to be DataGrid1. I would
have expected DataGrid1_Updat eCommand but I suppose that could just be the way
that datamatrix wires it up. Then again... perhaps I'm wrong.
"Russ Green" <ru**********@h otmail.com> wrote in message
news:ew******** ******@TK2MSFTN GP12.phx.gbl... I am currently learning asp.net (vb) with Web Matrix. I am building an
intranet page that will have an editable datagrid on it. I have got the
datagrid to populate OK but I cannot get the Update method to work
correctly.
I click on edit and and the non-readonly field become editable as in
http://www.russgreen.net/software/ne...creenshot1.gif
The update button does nothing. See
http://www.russgreen.net/software/ne...creenshot2.gif
Error page
http://www.russgreen.net/software/ne...nUPDATEstateme nt_.htm
.aspx page
http://www.russgreen.net/software/ne..._list_new.aspx
Can someone please help explain this please?
Sub DataGrid_Update (s As Object, e As DataGridCommand EventArgs )
'create edit text boxes
Dim txtName As textbox = E.Item.cells(2) .Controls(0)
Dim txtStatus As textbox = E.Item.cells(3) .Controls(0)
Dim txtAction As textbox = E.Item.cells(4) .Controls(0)
Dim txtStaff As textbox = E.Item.cells(5) .Controls(0)
'update SQL
Dim strUpdateSql As String ="UPDATE Projects SET" & _
" Name =@Name, Status =@Status, Action = @Action, Staff =
@Staff" & _
" WHERE ProjectID = @ProjectID"
'connection stuff
Dim conn As OleDbConnection = New OleDbConnection (strConn)
conn.Open()
'command Object to Execute the SQL
Dim cmd As OleDbCommand = New OleDbCommand(st rUpdateSql, conn)
cmd.Parameters. Add(New OleDbParameter( "@Name", txtName.text))
cmd.Parameters. Add(New OleDbParameter( "@Status", txtStatus.text) )
cmd.Parameters. Add(New OleDbParameter( "@Action", txtAction.text) )
cmd.Parameters. Add(New OleDbParameter( "@Staff", txtStaff.text))
cmd.Parameters. Add(New OleDbParameter( "@ProjectID ",
CType(e.Item.Ce lls(0).Text, Long)))
cmd.ExecuteNonQ uery()
'do housekeeping
DataGrid1.EditI temIndex = -1
conn.close
'rebind
BindData()
End Sub
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.500 / Virus Database: 298 - Release Date: 10/07/2003
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