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ASP.NET RangeValidator Control
This validator evaluates the value of an input control to check that the value lies between specified ranges.
It allows us to check whether the user input is between a specified upper and lower boundary. This range can be numbers, alphabetic characters and dates.
Note: if the input control is empty, no validation will be performed.
The ControlToValidateproperty is used to specify the control to validate. The MinimumValue and MaximumValue properties are used to set minimum and maximum boundaries for the control.
RangeValidator Properties
| Property | Description |
|---|---|
| AccessKey | It is used to set keyboard shortcut for the control. |
| TabIndex | The tab order of the control. |
| BackColor | It is used to set background color of the control. |
| BorderColor | It is used to set border color of the control. |
| BorderWidth | It is used to set width of border of the control. |
| Font | It is used to set font for the control text. |
| ForeColor | It is used to set color of the control text. |
| Text | It is used to set text to be shown for the control. |
| ToolTip | It displays the text when mouse is over the control. |
| Visible | To set visibility of control on the form. |
| Height | It is used to set height of the control. |
| Width | It is used to set width of the control. |
| ControlToValidate | It takes ID of control to validate. |
| ErrorMessage | It is used to display error message when validation failed. |
| Type | It is used to set datatype of the control value. |
| MaximumValue | It is used to set upper boundary of the range. |
| MinimumValue | It is used to set lower boundary of the range. |
Example
In the following example, we are using RangeValidator to validate user input in specified range.
// RangeValidator.aspx
Output:
It throws an error message when the input is not in range.
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