Composite Control - Control sizing

[Eric]

I have created a fairly basic composite control consisting of a Label
and a TextBox. In the overridden Render function, I'm creating a
table with two rows and each row contains a cell (td). The Label and
the TextBox are each rendered in one of the cells. Everything renders
fine. The problem is that depending on the column the control
represents I may want the textbox to be a different visible size
during both design and runtime. I exposed a public property of the
control to allow setting of the TextBox.Columns property but it does
not seem to have any effect.

Help would be appreciated.

 

[Kevin Spencer]

The Columns property of a TextBox sets the "size" HTML attribute of the
TextBox. This may be overridden by CSS styles. Other than that, I don't know
what you mean by "does not seem to have any effect."

--
HTH,

Kevin Spencer
Microsoft MVP

DSI PrintManager, Miradyne Component Libraries:
http://www.miradyne.net

 

[eric]

Kevin,
Thanks for the reply. I guess what I'm looking for is the ability to
anchor the Label control and TextBox control to the composite control
container. If I resize the composite control, I would like the two
contained controls to re-size with it (at least the width). What I meant by
setting the Columns property of the TextBox has no effect is that changing
the value of the Columns property of the Textbox contained in the composite
control does not change its length.

<form id="form1" runat="server">
<div>
<asp:TextBox Columns="50" runat="server" ID="TB1"></asp:TextBox>
//expands the visible width of the TextBox
<abc:MyComposite TextBoxLength="50" runat="server"
ID="TB2"></abc:MyComposite>//In my composite control TextBoxLength changes
the Column value of the TextBox but it does not work
</div>
</form>

 

[Kevin Spencer]

The "size" attribute of an HTML text box(input type="text') is an HTML
attribute that sets the size (width) of the text box in characters. Can you
post the actual HTML generated for the composite control? That would yield
more information.

--
HTH,

Kevin Spencer
Microsoft MVP

DSI PrintManager, Miradyne Component Libraries:
http://www.miradyne.net