CompareValidator.ValueToCompare Property
Gets or sets a constant value to compare with the value entered by the user into the input control being validated.
[Visual Basic] Public Property ValueToCompare As String [C#] public string ValueToCompare {get; set;} [C++] public: __property String* get_ValueToCompare(); public: __property void set_ValueToCompare(String*); [JScript] public function get ValueToCompare() : String; public function set ValueToCompare(String);
Property Value
The constant value to compare with the value entered by the user into the input control being validated. The default value is String.Empty.
Remarks
Use the ValueToCompare property to specify a constant value to compare with the value entered by the user into the input control being validated. If the constant value specified by this property fails to convert to the data type specified by the BaseCompareValidator.Type property, a exception is thrown.
Note Do not set both the ControlToCompare and ValueToCompare properties at the same time. You can either compare the value of an input control to another input control, or to a constant value. If both properties are set, the ControlToCompare property takes precedence.
Example
[Visual Basic, C#, JScript] The following example demonstrates how to use the ValueToCompare property to compare the value entered by the user into a TextBox control with a constant value.
[Visual Basic] <%@ Page Language="VB" AutoEventWireup="True" %> <html> <head> <script runat="server"> Sub Button_Click(sender As Object, e As EventArgs) Dim rand_number As New Random() Compare1.ValueToCompare = rand_number.Next(1, 10).ToString() Compare1.Validate() If Page.IsValid Then lblOutput.Text = "You guessed correctly!!" Else lblOutput.Text = "You guessed poorly" End If lblOutput.Text &= "<br><br>" & "The number is: " & Compare1.ValueToCompare End Sub </script> </head> <body> <form runat="server"> <h3>CompareValidator ValueToCompare Example</h3> <h5><Pick a number between 1 and 10:</h5> <asp:TextBox id="TextBox1" runat="server"/> <br><br> <asp:Button id="Button1" Text="Submit" OnClick="Button_Click" runat="server"/> <br><br> <asp:CompareValidator id="Compare1" ControlToValidate="TextBox1" ValueToCompare="0" Type="Integer" EnableClientScript="False" 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) { Random rand_number = new Random(); Compare1.ValueToCompare = rand_number.Next(1, 10).ToString(); Compare1.Validate(); if (Page.IsValid) { lblOutput.Text = "You guessed correctly!!"; } else { lblOutput.Text = "You guessed poorly"; } lblOutput.Text += "<br><br>" + "The number is: " + Compare1.ValueToCompare; } </script> </head> <body> <form runat="server"> <h3>CompareValidator ValueToCompare Example</h3> <h5><Pick a number between 1 and 10:</h5> <asp:TextBox id="TextBox1" runat="server"/> <br><br> <asp:Button id="Button1" Text="Submit" OnClick="Button_Click" runat="server"/> <br><br> <asp:CompareValidator id="Compare1" ControlToValidate="TextBox1" ValueToCompare="0" Type="Integer" EnableClientScript="False" 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) { var rand_number : Random = new Random(); Compare1.ValueToCompare = rand_number.Next(1, 10).ToString(); Compare1.Validate(); if (Page.IsValid) { lblOutput.Text = "You guessed correctly!!"; } else { lblOutput.Text = "You guessed poorly"; } lblOutput.Text += "<br><br>" + "The number is: " + Compare1.ValueToCompare; } </script> </head> <body> <form runat="server"> <h3>CompareValidator ValueToCompare Example</h3> <h5><Pick a number between 1 and 10:</h5> <asp:TextBox id="TextBox1" runat="server"/> <br><br> <asp:Button id="Button1" Text="Submit" OnClick="Button_Click" runat="server"/> <br><br> <asp:CompareValidator id="Compare1" ControlToValidate="TextBox1" ValueToCompare="0" Type="Integer" EnableClientScript="False" 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
Platforms: Windows 2000, Windows XP Professional, Windows Server 2003 family
See Also
CompareValidator Class | CompareValidator Members | System.Web.UI.WebControls Namespace | ControlToCompare | Type | IsValid | String.Empty