Use asp:button to trigger action (C#) : Button « ASP.net Controls « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. ASP.net Controls
  3. Button
<%@ Page Language="C#" %>

<script runat="server">
   void btAdd_Click(Object Sender, EventArgs e) {
      lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) + Convert.ToInt32(tbNumber2.Text)).ToString();
   }
 
   void btSubtract_Click(Object Sender, EventArgs e) {
      lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) - Convert.ToInt32(tbNumber2.Text)).ToString();
   }
 
   void btMultiply_Click(Object Sender, EventArgs e) {
      lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) * Convert.ToInt32(tbNumber2.Text)).ToString();
   }
 
   void btDivide_Click(Object Sender, EventArgs e) {
      lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) / Convert.ToInt32(tbNumber2.Text)).ToString();
   }
</script>

<HTML>
<HEAD>

</HEAD>
<BODY>

<form runat="server">

Number 1: <asp:textbox id="tbNumber1" runat=server/><br>
Number 2: <asp:textbox id="tbNumber2" runat=server/>
<asp:button id="btAdd" Text="   +   " OnClick="btAdd_Click" runat=server/>
<asp:button id="btSubtract" Text="   -   " OnClick="btSubtract_Click" runat=server/>
<asp:button id="btMultiply" Text="   *   " OnClick="btMultiply_Click" runat=server/>
<asp:button id="btDivide" Text="   /   " OnClick="btDivide_Click" runat=server/>
<asp:label id="lblMessage" font-size="20pt" runat=server/>

</form>

</BODY>
</HTML>








3.3.Button
3.3.1.Important properties, methods and events of Button control
3.3.2.Use asp:button to submit form data (VB.net)
3.3.3.Use asp:button to trigger action (VB)
3.3.4.Use asp:button to trigger action (C#)
3.3.5.Calcualate in button click action
3.3.6.Button Page Counter (VB.net)
3.3.7.Display event arguments
3.3.8.Hide a controll
3.3.9.Using Client Scripts with Button Controls
3.3.10.A button control with onmouseover and onmouseout setting
3.3.11.Annonymous delegate as the event handler
3.3.12.Add event handler to a button in page load event
3.3.13.UseSubmitBehavior Property