Problem At Accessing Dynamic Controls in ASP.NET

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Problem At Accessing Dynamic Controls in ASP.NET

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Topic

rammohan
Posting Yak Master

212 Posts

Posted - 2007-08-20 : 03:23:51

Hi,

here in my web page page1.aspx i have created a table control by:

<asp:Table ID = "Table1" GridLines = "both" HorizontalAlign = "center" Font-Size = "Medium" CellPadding = "5" CellSpacing = "0" runat = "server" style="z-index: 105; left: 64px; position: absolute; top: 212px">
</asp:Table>

in my page i have two text boxes txtRow and txtColumn to take the input to genretable table.

in Generate button i have wrriten like this:
protected void btnGenerate_Click(object sender, EventArgs e)
{
int _rowCount = int.Parse(txtRow.Text.ToString());
int _colCount = int.Parse(txtColumn.Text.ToString());
for (int i = 0; i < _rowCount; i++)
{
TableRow _tr = new TableRow();
Table1.Rows.Add(_tr);
for (int j = 0; j < _colCount; j++)
{
TableCell _tc = new TableCell();
System.Web.UI.WebControls.TextBox _txtBox = new TextBox();
_txtBox.ID = "_txtBox1";

_tc.Controls.Add(_txtBox);
_tr.Cells.Add(_tc);
}
}

}

after this i have taken label to display the text typed on dynamically created text box.

so, i have taken one more button btnCkeck.

in that button click, i had written the following code:

protected void btnCheck_Click(object sender, EventArgs e)
{
string _text = "_txtBox1";
Table _tab = (Table)this.Page.FindControl("Table1");
if (_tab != null)
{

TextBox _txt = (TextBox)_tab.FindControl(_text);
if (_txt != null)
{
Label3.Text = _txt.Text.ToString();
}

}
}

but the TextBox is not accessing. the Table "_tab" is accessing but the text box in it is not accessing. the if block is not getting executed. please show me a way to access it.

One can never consent to creep,when one feels an impulse to soar
RAMMOHAN

salmonraju
Yak Posting Veteran

54 Posts

Posted - 2007-08-20 : 08:19:11

hi Ramu,
when you are Clicking BtnCheck you loose all the data in the table(State Management), i.e,
_tab is null,I tried to store the tab in viewstate but i am getting error message

rammohan
Posting Yak Master

212 Posts

Posted - 2007-08-20 : 11:04:00

yeah salmon,
I Got It Through Maintaining My Table In Session

One can never consent to creep,when one feels an impulse to soar
RAMMOHAN

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