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ValidationSummary Control
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.
Properties
| Property |
Description |
| DisplayMode |
How to display the summary. Legal values are:
- BulletList
- List
- SingleParagraph
|
| EnableClientScript |
A Boolean value that specifies whether client-side
validation is enabled or not |
| Enabled |
A Boolean value that specifies whether the validation
control is enabled or not |
| ForeColor |
The fore color of the control |
| HeaderText |
A header in the ValidationSummary control |
| id |
A unique id for the control |
| runat |
Specifies that the control is a server control. Must
be set to "server" |
| ShowMessageBox |
A Boolean value that specifies whether the summary should be displayed in a
message box or not |
| ShowSummary |
A Boolean value that specifies whether the ValidationSummary control should be
displayed or hidden |
Example 1
In the following example we use the ValidationSummary control to write a
bulleted list of fields that are required but left empty by the user:
<html>
<body>
<form runat="server">
<table>
<tr>
<td>
<table bgcolor="#b0c4de" cellspacing="10">
<tr>
<td align="right">Name:</td>
<td><asp:TextBox id="txt_name" runat="server"/></td>
<td>
<asp:RequiredFieldValidator
id="reqfieldval_name"
ControlToValidate="txt_name"
ErrorMessage="Name"
Text="*"
runat="server"/>
</td>
</tr>
<tr>
<td align="right">Card Type:</td>
<td>
<asp:RadioButtonList id="rlist_type"
RepeatLayout="Flow"
runat="server">
<asp:ListItem>Diners</asp:ListItem>
<asp:ListItem>MasterCard</asp:ListItem>
<asp:ListItem>Visa</asp:ListItem>
</asp:RadioButtonList>
</td>
<td>
<asp:RequiredFieldValidator
id="reqfieldval_type"
ControlToValidate="rlist_type"
ErrorMessage="Card Type"
InitialValue=""
Text="*"
runat="server"/>
</td>
</tr>
<tr>
<td align="right">Credit Card Number:</td>
<td><asp:TextBox id="txt_no" runat="server"/></td>
<td>
<asp:RequiredFieldValidator
id="reqfieldval_no"
ControlToValidate="txt_no"
ErrorMessage="Credit Card Number"
Text="*"
runat="server"/>
</td>
</tr>
<tr>
<td></td>
<td>
<asp:Button id="b1" Text="Submit" runat="server"/>
</td>
<td></td>
</tr>
</table>
</td>
<td valign=top>
<table>
<tr>
<td>
<asp:ValidationSummary id="valSum"
HeaderText="Enter a value in the following fields:"
DisplayMode="BulletList"
EnableClientScript="true"
runat="server"/>
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
|
Example 2
In the following example we use the ValidationSummary control to display a
message box of the fields that are required but left empty by the user:
<html>
<body>
<form runat="server">
<table>
<tr>
<td>
<table bgcolor="#b0c4de" cellspacing="10">
<tr>
<td align="right">Name:</td>
<td><asp:TextBox id="txt_name" runat="server"/></td>
<td>
<asp:RequiredFieldValidator
id="reqfieldval_name"
ControlToValidate="txt_name"
ErrorMessage="Name"
Text="*"
runat="server"/>
</td>
</tr>
<tr>
<td align="right">Card Type:</td>
<td>
<asp:RadioButtonList id="rlist_type"
RepeatLayout="Flow"
runat="server">
<asp:ListItem>Diners</asp:ListItem>
<asp:ListItem>MasterCard</asp:ListItem>
<asp:ListItem>Visa</asp:ListItem>
</asp:RadioButtonList>
</td>
<td>
<asp:RequiredFieldValidator
id="reqfieldval_type"
ControlToValidate="rlist_type"
ErrorMessage="Card Type"
InitialValue=""
Text="*"
runat="server"/>
</td>
</tr>
<tr>
<td align="right">Credit Card Number:</td>
<td><asp:TextBox id="txt_no" runat="server"/></td>
<td>
<asp:RequiredFieldValidator
id="reqfieldval_no"
ControlToValidate="txt_no"
ErrorMessage="Credit Card Number"
Text="*"
runat="server"/>
</td>
</tr>
<tr>
<td></td>
<td>
<asp:Button id="b1" Text="Submit" runat="server"/>
</td>
<td></td>
</tr>
</table>
</td>
<td valign=top>
<table>
<tr>
<td>
<asp:ValidationSummary id="valSum"
HeaderText="Enter a value in the following fields:"
ShowMessageBox="true"
ShowSummary="false"
EnableClientScript="true"
runat="server"/>
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
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