Calcualate in button click action : Button « ASP.net Controls « ASP.NET Tutorial






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  2. ASP.net Controls
  3. Button
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="test.aspx.vb" Inherits="Calculator" %>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        Your height (in inches):
        <asp:TextBox ID="height" runat="server"></asp:TextBox><br />
        <br />
        Weight (in pounds):
        <asp:TextBox ID="weight" runat="server"></asp:TextBox><br />
        <br />
        <asp:Button ID="btnSubmit" runat="server" Text="Calculate" /><br />
        <br />
        <asp:Label ID="results" runat="server"></asp:Label></div>
    </form>
</body>
</html>


File: test.aspx.vb


Partial Class Calculator
    Inherits System.Web.UI.Page

    Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
        Dim h As Integer = height.Text
        Dim w As Integer = weight.Text

        Dim result As Double
        result = w / h 

        results.Text = "value is " & result

    End Sub
End Class








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