How to make this calculation in asp.net

check this

HTML

 Value: 1<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    Value: 2<asp:TextBox ID="TextBox2" runat="server" OnTextChanged = "TextBox2_Changed" AutoPostBack = "true"></asp:TextBox>
    Result:<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>

Code

 protected void TextBox2_Changed(object sender, EventArgs e)
    {
        TextBox3.Text = (int.Parse(TextBox1.Text) * int.Parse(TextBox2.Text)).ToString();
    }

Try this

    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <asp:TextBox ID="TextBox2"
        runat="server" ontextchanged="TextBox2_TextChanged" AutoPostBack="true"></asp:TextBox>
    <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>

protected void TextBox2_TextChanged(object sender, EventArgs e)    {
        TextBox3.Text = Convert.ToString(Convert.ToInt32(TextBox1.Text) * Convert.ToInt32(TextBox2.Text));
    }

Sir,

Ur example of 3 textboxes. It works when i move from the 2nd textbox. But i want the calculation to happen as soon as i enter the value or change the value.. How to write and at what event should i write the code?

suchitra says:What i want is image 2 textboxes and when u enter data in both textboxes immediately after entering data in 2nd textbox i must get the multiplied result in another control..

You asked for above and that's what I gave you. Now I am unable to get what exactly you want

Sir,

refering ur example only when i enter value in 2nd textbox i have to move to 3rd textbox to gte the result... But my requirement is that as soon as i enter value in 2nd textbox without moveing to 3rd textbox or postback i should get the result in 3rd textbox