HT make screens morf to fit the current situation?

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xzzy - 23 Jun 2007 17:56 GMT

I am stuck on how to make a screen whose fields are created at runtime so it
can 'morf'' to meet the needs of the current situation.

Using <table id="Table1" runat="server">
</table>
and using code behind to write cells, rows and server controls into the
cells doesn't work ( can't programactially access a table )

I am currently trying to do:

<table id="Table1" runat="server">
<tr><td><asp:PlaceHolder id="PL1"/></td></tr>
<tr><td><asp:PlaceHolder id="PL2"/></td></tr>
</table>

and in code behind

protected System.Web.UI.WebControls.PlaceHolder PL1;
protected System.Web.UI.WebControls.PlaceHolder PL2;

and then wanting to write a server control to each placeholder and then be
able to read and write information to the server controls. But I am unable
to reference the newly created server controls.

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Alexey Smirnov - 23 Jun 2007 22:43 GMT

> I am stuck on how to make a screen whose fields are created at runtime so it
> can 'morf'' to meet the needs of the current situation.
[quoted text clipped - 19 lines]
> able to read and write information to the server controls. But I am unable
> to reference the newly created server controls.

Actually, it is not a big problem to create a cell and a control in
it.

Instead of PlaceHolders, try following

// create first row
HtmlTableRow r1 = new HtmlTableRow();
HtmlTableCell c1 = new HtmlTableCell();
r1.Cells.Add(c1);

// create second row
HtmlTableRow r2 = new HtmlTableRow();
HtmlTableCell c2 = new HtmlTableCell();
r2.Cells.Add(c2);

Table1.Rows.Add(r1);
Table1.Rows.Add(r2);

// then you can add a control, e.g.

TextBox txt = new TextBox();
txt.ID = "mytext";
r1.Cells[1].Controls.Add(txt);

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xzzy - 24 Jun 2007 15:34 GMT

the problem is: after the viewer adds/changes information in the textbox,
how to reference the information in the textbox

>> I am stuck on how to make a screen whose fields are created at runtime so
>> it
[quoted text clipped - 46 lines]
> txt.ID = "mytext";
> r1.Cells[1].Controls.Add(txt);

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Alexey Smirnov - 24 Jun 2007 20:01 GMT

> the problem is: after the viewer adds/changes information in the textbox,
> how to reference the information in the textbox

you would need an EventHandler

HOW TO: Dynamically Create Controls in ASP.NET by Using Visual C# .NET
http://support.microsoft.com/kb/317794

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HT make screens morf to fit the current situation?

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