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c#webformsfindcontrol

Can't locate checkbox in webform

I'm trying to locate a checkbox on my webform, but am not able to? It's always set to NULL? I have tried different approaches (the i is set via a FOR loop, I'm using a Masterpage as well):

CheckBox cb = (CheckBox)this.FindControl("ctl00_ContentPlaceHolder1_sa" + i.ToString());

CheckBox cb = (CheckBox)Page.FindControl("ctl00_ContentPlaceHolder1_sa" + i.ToString());

CheckBox cb = (CheckBox)Parent.FindControl("ctl00_ContentPlaceHolder1_sa" + i.ToString());

... as well as...

CheckBox cb = (CheckBox)this.FindControl("sa" + i.ToString());

CheckBox cb = (CheckBox)Page.FindControl("sa" + i.ToString());

CheckBox cb = (CheckBox)Parent.FindControl("sa" + i.ToString());

Any ideas?

Solution

  • I placed the checkboxes inside a panel, and was able to access them with Panel1.FindControl as per @linuser.

    Feels like a quickfix but it works.