Definition and Usage

The ValidationSummary control is used to display a summary of all validation errors occurred in a Web page.

The error message displayed in this control is specified by the ErrorMessage property of each validation control. If the ErrorMessage property of the validation control is not set, no error message is displayed for that validation control.

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Properties

Property	Value	Description
Alignment	left center right	Optional. How to align the control
BackColor	rgb(x,x,x) #xxxxxx colorname	Optional. A background color for the control
BackLabel	backlabel	Optional. Specifies a text that serves as a link to "go back" that will be displayed on the validation summary page
ForeColor	rgb(x,x,x) #xxxxxx colorname	Optional. A foreground color for the control
FormToValidate	form_id	Optional. Specifies the id of the form to validate
Font-Bold	false true	Optional. Specifies whether or not the text in the control should be bold
Font-Italic	false true	Optional. Specifies whether or not the text in the control should be italic
Font-Name	fontname	Optional. Specifies the font name of the text in the control
Font-Size	normal small large	Optional. Specifies the font size of the text in the control
id	unique_name	Optional. A unique id for the control
runat	"server"	Required. Specifies that the control is a server control
StyleReference	name_of_style_element	Optional. Specifies a reference to a style to be applied to the control
Wrapping	wrap nowrap	Optional. Specifies whether or not the text in the control should wrap

Example 1

The following example contains two forms in an .aspx file. The first form has a label with the text "Please enter a number from 1 through 100", an input box to input a number, a RangeValidator control that checks that the input value is a number from 1 through 100, a RequiredFieldValidator control that checks that the input field isn't empty, and a submit button. The second form is activated by the submit button on the first form, and displays a response. If one of  the input value did not validate, the ValidationSummary control will display (in a list) the text in the ErrorMessage property for each control that did not validate:

<%@ Page Inherits="System.Web.UI.MobileControls.MobilePage"%> <%@ Register TagPrefix="Mobile" Namespace="System.Web.UI.MobileControls" Assembly="System.Web.Mobile" %> <script runat="server"> sub page2(Sender as Object,E as EventArgs)   ActiveForm=f2 end sub </script> <Mobile:Form id="f1" runat="server">   <Mobile:Label runat="server">   Please enter a number from 1 through 100   </Mobile:Label>   <Mobile:TextBox id="txt1" runat="server"/>   <Mobile:RangeValidator   ControlToValidate="txt1"   Type="Integer"   MaximumValue="100"   MinimumValue="1"   ErrorMessage="Invalid number"   runat="server" />   <Mobile:RequiredFieldValidator   ControlToValidate="txt1"   ErrorMessage="A number is required"   runat="server" />   <Mobile:Command runat="server"   OnClick="page2">Show errors in Summary   </Mobile:Command> </Mobile:Form> <Mobile:Form id="f2" runat="server">   <Mobile:Label runat="server">   Your input is valid if no error is shown below.   </Mobile:Label>   <Mobile:ValidationSummary FormToValidate="f1"   HeaderText="Error listed below:"   BackLabel="Back to main frame" runat="server" /> </Mobile:Form>

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