how to do addition of textbox values(Integers) on Lost Focus Property and Show it in TextBlock


I have many Textboxes and I want to Add the Values(Sum of Integers) of Textboxes and Show it in a textblock on Lost Focus Property.... For example:

I fill a Textbox with integer 5, the value of Textblock Changes to 5.... And after that I fill another Textbox with 4... Textblock changes to 9.

I short How can I bind single TextBlock to Multiple Textboxes with Lost_Focus Property?

Please Answer I cannot find it anywhere on Web.


My Dear, In this way you can easily add textboxes in textblock keep

int sum=0; private void TextBox_TextChanged(object sender, TextChangedEventArgs e) { sum = sum + Convert.ToInt32(_1.Text); Add.Text = sum.ToString(); } private void TextBox_TextChanged_1(object sender, TextChangedEventArgs e) { sum = sum + Convert.ToInt32(_2.Text); Add.Text = sum.ToString(); }


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