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WPF: Adding checkbox with content Textblock at dynamically - width width returns NaN

Posted By:      Posted Date: September 07, 2010    Points: 0   Category :WPF
I want to add set of checkbox at runtime one by one in one column. So i am creating check box object with content Textblock (Textwrapping = wrap) and adding to wrappanel but width of controls is NaN so i am not able to set location(Y co ordinate) of next checkbox. int lastheight = 10; private void btnadd_Click(object sender, RoutedEventArgs e) { CheckBox chk_add = new CheckBox(); chk_add.MaxWidth = 100; TextBlock tb_add = new TextBlock(); tb_add.MaxWidth = 100; tb_add.TextWrapping = TextWrapping.Wrap; tb_add.Text = "Here is long text so that text block will get split over two lines....... blah blah blah"; chk_add.Content=tb_add;     chk_add.Margin = new Thickness(10, lastheight, 0, 0); wrapPanel1.Children.Add(chk_add); lastheight += (int)chk_add.Width; } Can any any one have idea how can i tackle this issue.

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