HtmlInputButton.ServerClick Event

Reference

Definition

Namespace:: System.Web.UI.HtmlControls

Assembly:: System.Web.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

public:
 event EventHandler ^ ServerClick;

public event EventHandler ServerClick;

member this.ServerClick : EventHandler

Public Custom Event ServerClick As EventHandler

Event Type

EventHandler

Examples

The following code 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.

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<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>

<html xmlns="http://www.w3.org/1999/xhtml" > 

<head>
    <title> HtmlInputButton Example </title>
</head>
<body>
<form id="form1" runat="server">
    <div>

    <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">
                 
            </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 a 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 a 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>
                
            </td>
         </tr>
         <tr align="center">
            <td colspan="4">

               <input type="Submit"
                      id="SubmitButton"
                      value="Add"
                      onserverclick="AddButton_Click"
                      runat="server"/>

                  

               <input type="Reset"
                      id="ResetButton"
                      value="Reset"
                      runat="server"/>

            </td>
            <td>
                 
            </td>
        </tr>
    </table>

    </div>
</form>
</body>
</html>

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<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>

<html xmlns="http://www.w3.org/1999/xhtml" > 

<head>
    <title> HtmlInputButton Example </title>
</head>
<body>
<form id="form1" runat="server">
    <div>

    <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">
                 
            </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 a 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 a 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>
                
            </td>
         </tr>
         <tr align="center">
            <td colspan="4">

               <input type="Submit"
                      id="SubmitButton"
                      value="Add"
                      onserverclick="AddButton_Click"
                      runat="server"/>

                  

               <input type="Reset"
                      id="ResetButton"
                      value="Reset"
                      runat="server"/>

            </td>
            <td>
                 
            </td>
        </tr>
    </table>

    </div>
</form>
</body>
</html>

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<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 HtmlInputButton 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 HtmlInputButton 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>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>HtmlInputButton ServerClick Example</title>
</head>

<body>

   <form id="form1" runat="server">

      <h3> HtmlInputButton ServerClick Example </h3>

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

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

   </form>

</body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

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

    ' Set the properties of the new HtmlInputButton 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 HtmlInputButton control to the Controls collection of the
    ' PlaceHolder control. 
    ControlContainer.Controls.Add(NewButtonControl)

  End Sub


  Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)

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

  End Sub

</script>


<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>HtmlInputButton ServerClick Example</title>
</head>
<body>

   <form id="form1" runat="server">

      <h3> HtmlInputButton ServerClick Example </h3>

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

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

   </form>

</body>
</html>

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 how to handle events, see Handling and Raising Events.

Applies to

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