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asp:RangeValidator control
RangeValidator is used to validate if the given data is in between the specified range or not.
 
RangeValidator is used to validate if the given data is in between the specified range or not.

 

Following are main properties of the validation control.
MinimumValue Gets or sets the minimum value of the range.
MaximumValue Gets or sets the maximum value of the range.
Type Integer/String/Date/Currency/Double. Used to specify the data type to validate.
ControlToValidate Gets or sets the input control to validate (eg. The ID value of asp:TextBox control).
Display Dynamic/Static. Used to indicate how the area of error message will be allocated.
Dynamic: Error message area will only be allocated when error will be displayed. Static: Error messagea area will be allocated in either case.
Enabled true/false. Gets or sets whether to enable the validation control or not.
ErrorMessage Gets or sets the text of the error message that will be displayed when validation fails (This is displayed when ValidationSummary validatoin control is used.).
Text Gets or sets the description of the error message text.
ValidationGroup Gets or sets the validation group it belongs to. This is used to group a set of controls.
SetFocusOnError true/false. Used to move focus on the control that fails the validation.
DEMO : RangeValidator Show Source Code
  

                    <asp:Label ID="lbl" AssociatedControlID="TextBox1" runat="Server" Text="Write into TextBox"></asp:Label>
                    <asp:TextBox ID="TextBox1" runat="Server"></asp:TextBox>
                    <asp:RequiredFieldValidator ID="req1" runat="Server" ControlToValidate="TextBox1" ErrorMessage="TextBox is Mandatory field" Text="Please write something in the Box."></asp:RequiredFieldValidator>
                    <asp:RangeValidator ID="range1" runat="Server" ControlToValidate="TextBox1" MinimumValue="5" MaximumValue="10" Display="dynamic" Type="Integer" Text="Integer only" ErrorMessage="Value must be between 5 to 10"></asp:RangeValidator>
                    <asp:Button ID="btnSubmit" runat="Server" OnClick="ChangeLabelText" Text="Change Label Text" />                
                    <asp:ValidationSummary ID="ValidationSummary" runat="Server" ShowMessageBox="true" />