ASP.NET VB - How to access data from dynamically created TextBox

Question

Firstly, I'm a beginner programmer in ASP.NET(VB). As stated in the title how do i access the value of a dynamically created texbox

For example : On Aspx Page

<asp:Table id= "Table1" runat="server">
</asp:Table>

On Aspx.Vb page on Page_Load, I have

dim i as integer = 0

While i < 3
  Dim tempCell as New TableCell
  Dim tempCell2 as New TableCell
  Dim temprow as New TableRow 

  tempCell.Controls.Add(New LiteralControl("<asp:TextBox id = 'aa" & i & "' runat="server">this is value for ab " & i & "</asp:TextBox>"))
  tempCell2.Controls.Add(New LiteralControl("<asp:TextBox id = 'ab" & i & "' runat="server">this is value for ab " & i & "</asp:TextBox>"))

  temprow.Cells.Add(tempCell) 
  temprow.Cells.Add(tempCell2)

  Table1.Rows.Add(temprow)

  i = i + 1
End While

So, this is roughly what I wanted to do.

The code works, except that, How do i get the data on button click? I've done some google search but couldn't get to an anwser. I've tried the page.FindControl("ab" & i), but i still can't get the value.

Where did I do wrong with this? Thanks in advance.

Afnan Makhdoom · Accepted Answer · 2017-09-08 10:30:57Z

1

Use directcast to access your cells. Here's an example code I wrote to access a dynamically generated textbox.

Dim txt = New TextBox()
txt.Name = "name1"
txt.Size = New Size(200, 70)
txt.Location = New Point(40, 40)
txt.Text = "I am a new textbox"
Me.Controls.Add(txt)
DirectCast(Me.Controls("name1"), TextBox).Text = "Some stuff here" 'The magic happens here

answered Sep 8, 2017 at 10:30

Afnan Makhdoom

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1 Comment

user5397881 Over a year ago

Thanks alot for this.

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