Web Forms :: Composite Control Attribute Assignment?

Mar 29, 2010

I have got a composite control and i would like to dictate which attribute/property is assigned to the control first from the markup?example in the aspx file:

<MM:MyControl ID="" runat="server" ViewType="normal" BaseType="RealBase"></MM:MyControl>

when the control gets created from the mark-up above, ViewType will be assigned first, Which is what I do not want, I would like RealBase to be assigned first under all circumstances. This control is to be users by other developers so I cannot just switch the order.

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Web Forms :: Assignment Of FormView Control In Design-time To User Defined Composite Control

Feb 1, 2011

i create a composite control as can be seen in code below, and add this control to webform, assign FormView1 to the HeaderControlName property, Run the page, the system will generate parse error message :
Cannot create an object of type 'System.Web.UI.WebControls.FormView' from its string representation 'FormView1' for the 'HeaderControlName' property. However, if i don't assign FormView1 in design screen and manually (through coding) assign FormView1 to the custom control on init, it works as expected.

custom control
public class CmdTest : CompositeControl
{
public virtual FormView HeaderControlName
{
get
{
object oObject = ViewState["HeaderControlName"];
return (oObject == null) ? null : (FormView)oObject;
}
set
{
ViewState["HeaderControlName"] = value;
}
}
protected override void CreateChildControls(
{
Controls.Clear();
Button xx = new Button();
Controls.Add(xx);
}
}
webpage.aspx (assign FormView1 in design time, it will generate error)
<Utils:CmdTest ID="CmdTest1" runat="server" HeaderControlName="FormView1" />
webpage.aspx (didn't assign FormView1 in ASPX, but assign it on Init Code, it works)
<Utils:CmdTest ID="CmdTest1" runat="server" oninit="CmdTest1_Init" />
Webpage.aspx.cs
protected void BsCmdTest1_Init(object sender, EventArgs e)
{
CmdTest1.HeaderControlName = FormView1;
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Feb 1, 2011

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<%@
Master
Language="VB"
CodeFile="MasterPage.master.vb"
Inherits="MasterPage" %>
<!DOCTYPE
html
PUBLIC
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[Code]....

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[Code]....

All is good until i put

[Code]....

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[Code]....

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note: exact error - Error Unknown server tag 'cc:LblTextBox'.

Web Config

//..
//..
<pages>
<controls>
<add tagPrefix="cc" namespace="Controls.Server"/>
</controls>
</pages>
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The control code-behind
namespace Controls.Server
{
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{
//...
}
}
mark-up
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</head>
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First attempt at a simple composite control <br />
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</div>
</form>
</body>

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http://stackoverflow.com/questions/92689/how-to-define-listview-templates-in-code

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Can anybody tell me how can i access ScriptManager in my Composite Control?

I do have reference of system.web in my project but when i type System.Web.UI.

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i am registering client script as follows

[Code]....

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In addition, this key is generated the first time the control is loaded, but it should not be changed again after that first time.

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I have already tried saving it to viewstate, but that doesn't work because viewstate is not yet available at the time the control is instantiated.

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More Info:

We have a control in Webforms that implements ICompositeControl. We have a few properties on this control like Panel (type Panel), Buttons (again type Panel which would hold buttons) and a property Title of type string. Visually it looks like

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class TestControl : WebControl
{
Label _label;

[code]...

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[code]....

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