C# - Loop Through Controls Of UserControl?
Sep 30, 2010I have a user control with 5 simple radiobuttons, I need ot loop through those in code-behind, but I am drawing a huge blank on how to do this.
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<%foreach (userInfo i in this.items)
{ %>
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[code]....
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private static String controlToString(Control control)
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Type type = null;
foreach (Control c in control.Controls)
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try
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Without Try/catch
Object reference not set to an instance of an object.
On line controlID = .....
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[Code]....
Is there a way to do so that when click on the button inside userControl1, is does not show userControl2? I want to do this way is because, the button is for submitting data to database and then will pop up userControl2. When there is an error, only a msgBox will pop up and does not show userControl2.
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Dim MyControlName = "txtFirstName"
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Dim tmpTxtControl as TextBox
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Case "TextBox"
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MyStringValue = tmpTxtControl.Text
Case "DropDownList"
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writer.AddAttribute(HtmlTextWriterAttribute.Type, "button");
writer.AddAttribute(HtmlTextWriterAttribute.Id, this.UniqueID + "butto_Foo1");
writer.AddAttribute(HtmlTextWriterAttribute.Value, "Button1");
writer.RenderBeginTag(HtmlTextWriterTag.Input);
writer.RenderEndTag(); //button
writer.AddAttribute(HtmlTextWriterAttribute.Type, "button");
writer.AddAttribute(HtmlTextWriterAttribute.Id, this.UniqueID + "butto_Foo2");
writer.AddAttribute(HtmlTextWriterAttribute.Value, "Button2");
writer.RenderBeginTag(HtmlTextWriterTag.Input);
writer.RenderEndTag(); //button
This way buttons are rendered on design view as well. The problem is that number of buttons to render is dynamic based on data in xml file (even if the data was static, the number of button is about 12 and I don't think it is wise to copy paste the same code above 6 times...). I thought by using loop for that:
int i = 1;
foreach (Button button in tb.Items)
{
writer.AddAttribute(HtmlTextWriterAttribute.Type, "button");
writer.AddAttribute(HtmlTextWriterAttribute.Id, this.UniqueID + "butto_Foo" + i);
writer.AddAttribute(HtmlTextWriterAttribute.Value, button.ButtonValue);
writer.RenderBeginTag(HtmlTextWriterTag.Input);
writer.RenderEndTag(); //button
i++;
}
tb is defined in OnLoad; On run time it works, but on design time I get error: > Error rendering control. And control is not being rendered.
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<Repeater HTML Code>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="OpenLogs.aspx.cs" Inherits="OpenLogs" EnableEventValidation="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[Code]....
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[Code]....
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[Code] ....
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Protected Sub ClearRBL(ByVal sender as Object, ByVal e as EventArgs) Handles lbClear.Click
Dim ctl as Control
For Each ctl In Page.Controls
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End If
Next
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But this does not work. The If TypeOf ctl Is RadioButtonList Then line never finds a RadioButtonList control. How can I make this work?