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HtmlInputButton.ServerClick Event

Occurs when an HtmlInputButton control is clicked on the Web page.

[Visual Basic]
Public Event ServerClick As EventHandler
[C#]
public event EventHandler ServerClick;
[C++]
public: __event EventHandler* ServerClick;

[JScript] In JScript, you can handle the events defined by a class, but you cannot define your own.

Event Data

The event handler receives an argument of type EventArgs.

Remarks

This event is raised when an HtmlInputButton control is clicked.

Note   A Reset button does not raise the ServerClick event.

For more information about handling events, see Consuming Events.

Example

[Visual Basic, C#] The following example demonstrates how to specify and code a handler for the ServerClick event. The event handler adds the values of the two text boxes on the page and displays the results.

[Visual Basic] 
<%@ Page Language="VB" AutoEventWireup="True" %>

<html> 

<head>

   <script runat="server">

      Protected Sub AddButton_Click(sender As Object, e As EventArgs)

         Dim Answer As Integer

         Answer = Convert.ToInt32(Value1.Value) + Convert.ToInt32(Value2.Value)

         AnswerMessage.InnerHtml = Answer.ToString()

      End Sub

   </script>

</head>

<body>

   <form runat="server">

      <h3> HtmlInputButton Example </h3>

      <table>

         <tr>

            <td colspan="5">

               Enter integer values into the text boxes. <br>
               Click the Add button to add the two values. <br>
               Click the Reset button to reset the text boxes.

            </td>

         </tr>

         <tr>

            <td colspan="5">

               &nbsp;

            </td>

         </tr>

         <tr align="center">

            <td>

               <input ID="Value1"
                      Type="Text"
                      Size="2"
                      MaxLength="3"
                      Value="1"
                      runat="server"/>

            </td>

            <td>

               + 

            </td>

            <td>

               <input ID="Value2"
                      Type="Text"
                      Size="2"
                      MaxLength="3"
                      Value="1"
                      runat="server"/>

            </td>

            <td>

               =

            </td>

            <td>
               
               <span ID="AnswerMessage"
                     runat="server"/>

            </td>

         </tr>

         <tr>

            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value1RequiredValidator"
                    ControlToValidate="Value1"
                    ErrorMessage="Please enter an value.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MinCompareValidator"
                    ControlToValidate="Value1"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MaxCompareValidator"
                    ControlToValidate="Value1"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br>"
                    Display="Dynamic"
                    runat="server"/>

            </td>

            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value2RequiredValidator"
                    ControlToValidate="Value2"
                    ErrorMessage="Please enter an value.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MinCompareValidator"
                    ControlToValidate="Value2"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MaxCompareValidator"
                    ControlToValidate="Value2"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br>"
                    Display="Dynamic"
                    runat="server"/>

            </td>

            <td>

               &nbsp
 
            </td

         </tr>

         <tr align="center">

            <td colspan="4">

               <input Type="Submit"
                      Name="AddButton
                      Value="Add"
                      OnServerClick="AddButton_Click"
                      runat="server"/>

               &nbsp;&nbsp;&nbsp;

               <input Type="Reset"
                      Name="AddButton
                      Value="Reset"
                      runat="server"/>

            </td>

            <td>

               &nbsp;

            </td>

         </tr>

      </table>

   </form>

</body>
</html>

[C#] 

<%@ Page Language="C#" AutoEventWireup="True" %>

<html> 

<head>

   <script runat="server">

      protected void AddButton_Click(Object sender, EventArgs e)
      {
         int Answer;

         Answer = Convert.ToInt32(Value1.Value) + Convert.ToInt32(Value2.Value);

         AnswerMessage.InnerHtml = Answer.ToString();

      }

   </script>

</head>

<body>

   <form runat="server">

      <h3> HtmlInputButton Example </h3>

      <table>

         <tr>

            <td colspan="5">

               Enter integer values into the text boxes. <br>
               Click the Add button to add the two values. <br>
               Click the Reset button to reset the text boxes.

            </td>

         </tr>

         <tr>

            <td colspan="5">

               &nbsp;

            </td>

         </tr>

         <tr align="center">

            <td>

               <input ID="Value1"
                      Type="Text"
                      Size="2"
                      MaxLength="3"
                      Value="1"
                      runat="server"/>

            </td>

            <td>

               + 

            </td>

            <td>

               <input ID="Value2"
                      Type="Text"
                      Size="2"
                      MaxLength="3"
                      Value="1"
                      runat="server"/>

            </td>

            <td>

               =

            </td>

            <td>
               
               <span ID="AnswerMessage"
                     runat="server"/>

            </td>

         </tr>

         <tr>

            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value1RequiredValidator"
                    ControlToValidate="Value1"
                    ErrorMessage="Please enter an value.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MinCompareValidator"
                    ControlToValidate="Value1"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value1MaxCompareValidator"
                    ControlToValidate="Value1"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br>"
                    Display="Dynamic"
                    runat="server"/>

            </td>

            <td colspan="2">

               <asp:RequiredFieldValidator
                    ID="Value2RequiredValidator"
                    ControlToValidate="Value2"
                    ErrorMessage="Please enter an value.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MinCompareValidator"
                    ControlToValidate="Value2"
                    Operator="LessThan"
                    Type="Integer"
                    ValueToCompare="100"
                    ErrorMessage="Please enter an integer less than 100.<br>"
                    Display="Dynamic"
                    runat="server"/>

               <asp:CompareValidator
                    ID="Value2MaxCompareValidator"
                    ControlToValidate="Value2"
                    Operator="GreaterThan"
                    Type="Integer"
                    ValueToCompare="0"
                    ErrorMessage="Please enter an integer greater than 0.<br>"
                    Display="Dynamic"
                    runat="server"/>

            </td>

            <td>

               &nbsp
 
            </td

         </tr>

         <tr align="center">

            <td colspan="4">

               <input Type="Submit"
                      Name="AddButton
                      Value="Add"
                      OnServerClick="AddButton_Click"
                      runat="server"/>

               &nbsp;&nbsp;&nbsp;

               <input Type="Reset"
                      Name="AddButton
                      Value="Reset"
                      runat="server"/>

            </td>

            <td>

               &nbsp;

            </td>

         </tr>

      </table>

   </form>

</body>
</html>

[Visual Basic] 

<%@ Page Language="VB" AutoEventWireup="True" %>

<html> 

<head>

   <script runat="server">

      Sub Page_Load(sender As Object, e As EventArgs)

         ' Create a new HtmlInputButton control.
         Dim NewButtonControl As New HtmlInputButton()

         ' Set the properties of the new HtmlButton control.
         NewButtonControl.ID = "NewButtonControl"
         NewButtonControl.Value = "Click Me"

         ' Create an EventHandler delegate for the method you want to handle the event
         ' and then add it to the list of methods called when the event is raised.
         AddHandler NewButtonControl.ServerClick, AddressOf Button_Click 

         ' Add the new HtmlAnchor control to the Controls collection of the
         ' PlaceHolder control. 
         ControlContainer.Controls.Add(NewButtonControl)

      End Sub

      Sub Button_Click(sender As Object, e As EventArgs)

         ' Display a simple message. 
         Message.InnerHtml = "Thank you for clicking the button."

      End Sub


   </script>

</head>

<body>

   <form runat="server">

      <h3> HtmlInputButton ServerClick Example </h3>

      <asp:PlaceHolder ID="ControlContainer"
           runat="server"/>

      <br><br>
 
      <span ID="Message"
            runat="server"/>

   </form>

</body>
</html>


[C#] 

<%@ Page Language="C#" AutoEventWireup="True" %>

<html> 

<head>

   <script runat="server">

      void Page_Load(Object sender, EventArgs e)
      {

         // Create a new HtmlInputButton control.
         HtmlInputButton NewButtonControl = new HtmlInputButton("submit");

         // Set the properties of the new HtmlButton control.
         NewButtonControl.ID = "NewButtonControl";
         NewButtonControl.Value = "Click Me";

         // Create an EventHandler delegate for the method you want to handle the event
         // and then add it to the list of methods called when the event is raised.
         NewButtonControl.ServerClick += new System.EventHandler(this.Button_Click); 

         // Add the new HtmlAnchor control to the Controls collection of the
         // PlaceHolder control. 
         ControlContainer.Controls.Add(NewButtonControl);

      }

      void Button_Click(Object sender, EventArgs e)
      {

         // Display a simple message. 
         Message.InnerHtml = "Thank you for clicking the button.";

      }

   </script>

</head>

<body>

   <form runat="server">

      <h3> HtmlInputButton ServerClick Example </h3>

      <asp:PlaceHolder ID="ControlContainer"
           runat="server"/>

      <br><br>
 
      <span ID="Message"
            runat="server"/>

   </form>

</body>
</html>

[C++, JScript] No example is available for C++ or JScript. To view a Visual Basic or C# example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

HtmlInputButton Class | HtmlInputButton Members | System.Web.UI.HtmlControls Namespace | OnServerClick

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