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BaseValidator.ValidationGroup Property

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Gets or sets the name of the validation group to which this validation control belongs.

public:
 virtual property System::String ^ ValidationGroup { System::String ^ get(); void set(System::String ^ value); };
[System.Web.UI.Themeable(false)]
public virtual string ValidationGroup { get; set; }
[<System.Web.UI.Themeable(false)>]
member this.ValidationGroup : string with get, set
Public Overridable Property ValidationGroup As String

Property Value

String

The name of the validation group to which this validation control belongs. The default is an empty string (""), which indicates that this property is not set.

Attributes
ThemeableAttribute

Examples

The following code example demonstrates how to use the ValidationGroup property to assign a validation control to a group.

Important

This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>BaseValidator ValidationGroup Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>BaseValidator ValidationGroup Example</h3>
     
      Please enter your name:<br/>
      <asp:textbox id="NameTextBox" 
        runat="server"/>

      <asp:requiredfieldvalidator id="NameTextBoxRequiredValidator" 
        controltovalidate="NameTextBox"
        display="Dynamic" 
        text="Please enter your name."
        validationgroup="UserInfoGroup" 
        runat="server"/>

      <br /><br />

      <asp:button id="SubmitButton"
        text="Submit"
        validationgroup="UserInfoGroup" 
        runat="server"/>
        
      <hr/>
      
      Please enter a search topic:<br/>
      <asp:textbox id="SearchTextBox" 
        runat="server"/>

      <asp:requiredfieldvalidator id="SearchTextBoxRequiredValidator" 
        controltovalidate="SearchTextBox"
        display="Dynamic" 
        text="Please enter a topic."
        validationgroup="SearchGroup"
        runat="server"/>

      <br /><br />

      <asp:button id="SearchButton"
        text="Search"
        validationgroup="SearchGroup"
        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">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>BaseValidator ValidationGroup Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>BaseValidator ValidationGroup Example</h3>
     
      Please enter your name:<br/>
      <asp:textbox id="NameTextBox" 
        runat="server"/>

      <asp:requiredfieldvalidator id="NameTextBoxRequiredValidator" 
        controltovalidate="NameTextBox"
        display="Dynamic" 
        text="Please enter your name."
        validationgroup="UserInfoGroup" 
        runat="server"/>

      <br /><br />

      <asp:button id="SubmitButton"
        text="Submit"
        validationgroup="UserInfoGroup" 
        runat="server"/>
        
      <hr/>
      
      Please enter a search topic:<br/>
      <asp:textbox id="SearchTextBox" 
        runat="server"/>

      <asp:requiredfieldvalidator id="SearchTextBoxRequiredValidator" 
        controltovalidate="SearchTextBox"
        display="Dynamic" 
        text="Please enter a topic."
        validationgroup="SearchGroup"
        runat="server"/>

      <br /><br />

      <asp:button id="SearchButton"
        text="Search"
        validationgroup="SearchGroup"
        runat="server"/>
 
    </form>
  </body>
</html>

Remarks

ASP.NET provides many controls that have the ability to post back to the server. When one of these controls has its CausesValidation property set to true, validation is performed when the control posts back to server. The following controls have the ability to post back to the server:

Note

Some of these controls post back to the server only when the AutoPostBack property is set to true.

These controls each have a ValidationGroup property that, when set, validates only the validation controls within the specified group when the control triggers a post back to the server. Use the ValidationGroup property to assign a validation control to a validation group. The Page class also exposes a GetValidators method and a Validate method that accept a ValidationGroup input parameter.

This property cannot be set by themes or style sheet themes. For more information, see ThemeableAttribute and ASP.NET Themes and Skins.

Applies to

See also