Obviously a newbie to vb.net and attempting to read an arraylist and then
use. No problem outputting and Serializing but, and the dumb question - how
to I extract something from the obj retrieved below (which debug shows has
values for the Person structure) and place in a text box?
Appreciate, Ed
<Serializable()> Public Structure Person
Dim Name As String
Dim Age As Integer
Dim Income As Decimal
End Structure
Public Sub btnReadArray_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnReadArray.Click
Dim FS As New System.IO.FileStream("c\test.txt",
IO.FileMode.OpenOrCreate)
Dim obj As Object
Dim Persons As New ArrayList
Dim P As Person
Dim BinFormatter As New Binary.BinaryFormatter
obj = CType(BinFormatter.Deserialize(FS), ArrayList) 3 1992
Jan. 10, 2005
Try:
Dim FS As New System.IO.FileStream("c\test.txt",
IO.FileMode.OpenOrCreate)
Dim obj As Object
Dim Persons As ArrayList ' Change from As New to As
Dim P As Person
Dim BinFormatter As New Binary.BinaryFormatter
Persons = CType(BinFormatter.Deserialize(FS), ArrayList) 'Change to
Persons
for each obj in persons
P = Ctype(obj, person)
textbox1.text = P.Name
next
Then change the specific use of each Person object to match your
needs. I didn't test this, but it looks like it should work! :)
Joseph MCAD
"Ed Bitzer" wrote: Obviously a newbie to vb.net and attempting to read an arraylist and then use. No problem outputting and Serializing but, and the dumb question - how to I extract something from the obj retrieved below (which debug shows has values for the Person structure) and place in a text box?
Appreciate, Ed
<Serializable()> Public Structure Person Dim Name As String Dim Age As Integer Dim Income As Decimal End Structure
Public Sub btnReadArray_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReadArray.Click Dim FS As New System.IO.FileStream("c\test.txt", IO.FileMode.OpenOrCreate) Dim obj As Object Dim Persons As New ArrayList Dim P As Person Dim BinFormatter As New Binary.BinaryFormatter obj = CType(BinFormatter.Deserialize(FS), ArrayList)
Jan. 10, 2005
Try:
Dim FS As New System.IO.FileStream("c\test.txt",
IO.FileMode.OpenOrCreate)
Dim obj As Object
Dim Persons As ArrayList ' Change from As New to As
Dim P As Person
Dim BinFormatter As New Binary.BinaryFormatter
Persons = CType(BinFormatter.Deserialize(FS), ArrayList) 'Change to
Persons
for each obj in persons
P = Ctype(obj, person)
textbox1.text = P.Name
next
Then change the specific use of each Person object to match your
needs. I didn't test this, but it looks like it should work! :)
Joseph MCAD
"Ed Bitzer" wrote: Obviously a newbie to vb.net and attempting to read an arraylist and then use. No problem outputting and Serializing but, and the dumb question - how to I extract something from the obj retrieved below (which debug shows has values for the Person structure) and place in a text box?
Appreciate, Ed
<Serializable()> Public Structure Person Dim Name As String Dim Age As Integer Dim Income As Decimal End Structure
Public Sub btnReadArray_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReadArray.Click Dim FS As New System.IO.FileStream("c\test.txt", IO.FileMode.OpenOrCreate) Dim obj As Object Dim Persons As New ArrayList Dim P As Person Dim BinFormatter As New Binary.BinaryFormatter obj = CType(BinFormatter.Deserialize(FS), ArrayList)
I thank you Joseph, got it working.. I use to program in Pascal and was
use to creating custom types such as name, age, income but here it is
obvious I am just learning. I find that I can reference the individual
items in the array once "reconstituted" using TextBox1.Text =
Persons(0).Name and Person(2). age. I suspect the simpler way might have
been to use a multidimensional array.
Ed
"Joseph MCAD" <Jo********@discussions.microsoft.com> wrote in message
news:15**********************************@microsof t.com... Jan. 10, 2005
Try:
Dim FS As New System.IO.FileStream("c\test.txt", IO.FileMode.OpenOrCreate) Dim obj As Object Dim Persons As ArrayList ' Change from As New to As Dim P As Person Dim BinFormatter As New Binary.BinaryFormatter Persons = CType(BinFormatter.Deserialize(FS), ArrayList) 'Change to Persons for each obj in persons P = Ctype(obj, person) textbox1.text = P.Name next
Then change the specific use of each Person object to match your needs. I didn't test this, but it looks like it should work! :)
Joseph MCAD
"Ed Bitzer" wrote:
Obviously a newbie to vb.net and attempting to read an arraylist and then use. No problem outputting and Serializing but, and the dumb question - how to I extract something from the obj retrieved below (which debug shows has values for the Person structure) and place in a text box?
Appreciate, Ed
<Serializable()> Public Structure Person Dim Name As String Dim Age As Integer Dim Income As Decimal End Structure
Public Sub btnReadArray_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReadArray.Click Dim FS As New System.IO.FileStream("c\test.txt", IO.FileMode.OpenOrCreate) Dim obj As Object Dim Persons As New ArrayList Dim P As Person Dim BinFormatter As New Binary.BinaryFormatter obj = CType(BinFormatter.Deserialize(FS), ArrayList) This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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