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<asp:TextBox ID="TextBox1" runat="server" onfocus=this.blur()></asp:TextBox>  
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string Text = Request.Form["TextBox1"].Trim();  
string Text = Request.Form["TextBox1"].Trim();
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protected void Page_Load(object sender, EventArgs e)   
{   
    if (!Page.IsPostBack)   
    {   
        TextBox1.Attributes.Add("readonly","true");   
    }   
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