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ValidationCompareOperator Enumeration
.NET Framework 1.1
Specifies the validation comparison operators used by the CompareValidator control.
[Visual Basic] <Serializable> Public Enum ValidationCompareOperator [C#] [Serializable] public enum ValidationCompareOperator [C++] [Serializable] __value public enum ValidationCompareOperator [JScript] public Serializable enum ValidationCompareOperator
Remarks
The ValidationCompareOperator enumeration represents the comparison operations that can be performed by the CompareValidator control.
Members
| Member name | Description |
|---|---|
| DataTypeCheck | A comparison for data type only.
Note Unlike the other operators, DataTypeCheck is a unary operation. Only the data type of the input control being validated is checked. If the ControlToCompare or ValueToCompare properties are set when this operation is used, those values are not checked. |
| Equal | A comparison for equality. |
| GreaterThan | A comparison for greater than. |
| GreaterThanEqual | A comparison for greater than or equal to. |
| LessThan | A comparison for less than. |
| LessThanEqual | A comparison for less than or equal to. |
| NotEqual | A comparison for inequality. |
Example
[Visual Basic] <%@ Page Language="VB" AutoEventWireup="True" %> <html> <head> <script runat="server"> Sub Button_Click(sender As Object, e As EventArgs) If Page.IsValid Then lblOutput.Text = "Result: Valid!" Else lblOutput.Text = "Result: Not valid!" End If End Sub Sub Operator_Index_Changed(sender As Object, e As EventArgs) Compare1.Operator = CType(ListOperator.SelectedIndex, ValidationCompareOperator) Compare1.Validate() End Sub Sub Type_Index_Changed(sender As Object, e As EventArgs) Compare1.Type = CType(ListType.SelectedIndex, ValidationDataType) Compare1.Validate() End Sub </script> </head> <body> <form runat=server> <h3>CompareValidator Example</h3> <p> Enter a value in each textbox. Select a comparison operator<br> and data type. Click "Validate" to compare values. <table bgcolor="#eeeeee" cellpadding=10> <tr valign="top"> <td> <h5>String 1:</h5> <asp:TextBox id="TextBox1" runat="server"/> </td> <td> <h5>Comparison Operator:</h5> <asp:ListBox id="ListOperator" OnSelectedIndexChanged="Operator_Index_Changed" runat="server"> <asp:ListItem Selected Value="Equal">Equal</asp:ListItem> <asp:ListItem Value="NotEqual">NotEqual</asp:ListItem> <asp:ListItem Value="GreaterThan">GreaterThan</asp:ListItem> <asp:ListItem Value="GreaterThanEqual">GreaterThanEqual</asp:ListItem> <asp:ListItem Value="LessThan">LessThan</asp:ListItem> <asp:ListItem Value="LessThanEqual">LessThanEqual</asp:ListItem> <asp:ListItem Value="DataTypeCheck">DataTypeCheck</asp:ListItem> </asp:ListBox> </td> <td> <h5>String 2:</h5> <asp:TextBox id="TextBox2" runat="server"/> <p> <asp:Button id="Button1" Text="Validate" OnClick="Button_Click" runat="server"/> </td> </tr> <tr> <td colspan="3" align="center"> <h5>Data Type:</h5> <asp:ListBox id="ListType" OnSelectedIndexChanged="Type_Index_Changed" runat="server"> <asp:ListItem Selected Value="String" >String</asp:ListItem> <asp:ListItem Value="Integer" >Integer</asp:ListItem> <asp:ListItem Value="Double" >Double</asp:ListItem> <asp:ListItem Value="Date" >Date</asp:ListItem> <asp:ListItem Value="Currency" >Currency</asp:ListItem> </asp:ListBox> </td> </tr> </table> <asp:CompareValidator id="Compare1" ControlToValidate="TextBox1" ControlToCompare="TextBox2" EnableClientScript="False" Type="String" runat="server"/> <br> <asp:Label id="lblOutput" Font-Name="verdana" Font-Size="10pt" runat="server"/> </form> </body> </html> [C#] <%@ Page Language="C#" AutoEventWireup="True" %> <html> <head> <script runat="server"> void Button_Click(Object sender, EventArgs e) { if (Page.IsValid) { lblOutput.Text = "Result: Valid!"; } else { lblOutput.Text = "Result: Not valid!"; } } void Operator_Index_Changed(Object sender, EventArgs e) { Compare1.Operator = (ValidationCompareOperator) ListOperator.SelectedIndex; Compare1.Validate(); } void Type_Index_Changed(Object sender, EventArgs e) { Compare1.Type = (ValidationDataType) ListType.SelectedIndex; Compare1.Validate(); } </script> </head> <body> <form runat=server> <h3>CompareValidator Example</h3> <p> Enter a value in each textbox. Select a comparison operator<br> and data type. Click "Validate" to compare values. <table bgcolor="#eeeeee" cellpadding=10> <tr valign="top"> <td> <h5>String 1:</h5> <asp:TextBox id="TextBox1" runat="server"/> </td> <td> <h5>Comparison Operator:</h5> <asp:ListBox id="ListOperator" OnSelectedIndexChanged="Operator_Index_Changed" runat="server"> <asp:ListItem Selected Value="Equal">Equal</asp:ListItem> <asp:ListItem Value="NotEqual">NotEqual</asp:ListItem> <asp:ListItem Value="GreaterThan">GreaterThan</asp:ListItem> <asp:ListItem Value="GreaterThanEqual">GreaterThanEqual</asp:ListItem> <asp:ListItem Value="LessThan">LessThan</asp:ListItem> <asp:ListItem Value="LessThanEqual">LessThanEqual</asp:ListItem> <asp:ListItem Value="DataTypeCheck">DataTypeCheck</asp:ListItem> </asp:ListBox> </td> <td> <h5>String 2:</h5> <asp:TextBox id="TextBox2" runat="server"/> <p> <asp:Button id="Button1" Text="Validate" OnClick="Button_Click" runat="server"/> </td> </tr> <tr> <td colspan="3" align="center"> <h5>Data Type:</h5> <asp:ListBox id="ListType" OnSelectedIndexChanged="Type_Index_Changed" runat="server"> <asp:ListItem Selected Value="String" >String</asp:ListItem> <asp:ListItem Value="Integer" >Integer</asp:ListItem> <asp:ListItem Value="Double" >Double</asp:ListItem> <asp:ListItem Value="Date" >Date</asp:ListItem> <asp:ListItem Value="Currency" >Currency</asp:ListItem> </asp:ListBox> </td> </tr> </table> <asp:CompareValidator id="Compare1" ControlToValidate="TextBox1" ControlToCompare="TextBox2" EnableClientScript="False" Type="String" runat="server"/> <br> <asp:Label id="lblOutput" Font-Name="verdana" Font-Size="10pt" runat="server"/> </form> </body> </html> [JScript] <%@ Page Language="JScript" AutoEventWireup="True" %> <html> <head> <script runat="server"> function Button_Click(sender, e : EventArgs) { if (Page.IsValid) { lblOutput.Text = "Result: Valid!"; } else { lblOutput.Text = "Result: Not valid!"; } } function Operator_Index_Changed(sender, e : EventArgs) { Compare1.Operator = ValidationCompareOperator(ListOperator.SelectedIndex); Compare1.Validate(); } function Type_Index_Changed(sender, e : EventArgs) { Compare1.Type = ValidationDataType(ListType.SelectedIndex); Compare1.Validate(); } </script> </head> <body> <form runat=server> <h3>CompareValidator Example</h3> <p> Enter a value in each textbox. Select a comparison operator<br> and data type. Click "Validate" to compare values. <table bgcolor="#eeeeee" cellpadding=10> <tr valign="top"> <td> <h5>String 1:</h5> <asp:TextBox id="TextBox1" runat="server"/> </td> <td> <h5>Comparison Operator:</h5> <asp:ListBox id="ListOperator" OnSelectedIndexChanged="Operator_Index_Changed" runat="server"> <asp:ListItem Selected Value="Equal">Equal</asp:ListItem> <asp:ListItem Value="NotEqual">NotEqual</asp:ListItem> <asp:ListItem Value="GreaterThan">GreaterThan</asp:ListItem> <asp:ListItem Value="GreaterThanEqual">GreaterThanEqual</asp:ListItem> <asp:ListItem Value="LessThan">LessThan</asp:ListItem> <asp:ListItem Value="LessThanEqual">LessThanEqual</asp:ListItem> <asp:ListItem Value="DataTypeCheck">DataTypeCheck</asp:ListItem> </asp:ListBox> </td> <td> <h5>String 2:</h5> <asp:TextBox id="TextBox2" runat="server"/> <p> <asp:Button id="Button1" Text="Validate" OnClick="Button_Click" runat="server"/> </td> </tr> <tr> <td colspan="3" align="center"> <h5>Data Type:</h5> <asp:ListBox id="ListType" OnSelectedIndexChanged="Type_Index_Changed" runat="server"> <asp:ListItem Selected Value="String" >String</asp:ListItem> <asp:ListItem Value="Integer" >Integer</asp:ListItem> <asp:ListItem Value="Double" >Double</asp:ListItem> <asp:ListItem Value="Date" >Date</asp:ListItem> <asp:ListItem Value="Currency" >Currency</asp:ListItem> </asp:ListBox> </td> </tr> </table> <asp:CompareValidator id="Compare1" ControlToValidate="TextBox1" ControlToCompare="TextBox2" EnableClientScript="False" Type="String" runat="server"/> <br> <asp:Label id="lblOutput" Font-Name="verdana" Font-Size="10pt" runat="server"/> </form> </body> </html>
[C++] No example is available for C++. To view a Visual Basic, C#, or JScript example, click the Language Filter button
in the upper-left corner of the page.
Requirements
Namespace: System.Web.UI.WebControls
Platforms: Windows 2000, Windows XP Professional, Windows Server 2003 family
Assembly: System.Web (in System.Web.dll)
See Also
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