Web Forms :: Button Click Validation - Why It's Fairing And Redirect To D.aspx Still Textbox Empty

Aug 18, 2010

I have two text box and one button with asp.net Validation control on button click i have this below code..
If textbox is empty on clciking it fire validation as well as itz going to D.aspx.. still textbox is empty why it fairing and redirect to D.aspx still textbox empty...

ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", "window.open('D.aspx?Parameter=" + TextBox1.Text + "', null );", true);

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