FindControl problem 1

[Waynest]

asp.net 2

Hi

Could anyone suggest why ths bit of code would cause 'Oject referenece not set to instance of an object' message?

There is most definitely a label with ID 'lblSlot1' on the page. The page is a content of a master page if thats significant, but not I'm trying to reference controls on one from the other or anything like that.


myString = "lblSlot1";
Label myLabel = ((Label)(Page.FindControl(myString)));
myLabel.Text = "test text";

Thanks!

 

[ca8msm]

The label's parent probably isn't the Page, so it doesn't find it directly. Either:

1) Specify the parent yourself (i.e. put it in a Panel and use the Panel's FindControl method)
2) Write a recursive function to look through all controls for the Label
3) Do some debugging through the Controls collection and find out exactly where the control is located


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Mark,
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[Waynest]

Thanks, that helped. Here is required syntax for others with similar problem.


Control myControl = this.Master.FindControl("ContentPlaceHolder1").FindControl(myString);

if (myControl != null)
{
(myControl as Label).Text = "testtext";
}