Which Data Type Does the RangeValidator Control Support?


Larry Thompson

The RangeValidator control in ASP.NET is a powerful tool that allows us to validate user input within a specified range. But have you ever wondered which data types are supported by this control? Let’s dive into this topic and explore the different data types that the RangeValidator control can handle.

Supported Data Types:
The RangeValidator control supports a variety of data types, including:

1. Integer:
The Integer data type is commonly used to represent whole numbers without any decimal places.

This includes positive and negative numbers, as well as zero. To use the RangeValidator control with integers, you need to set the ControlToValidate property to the TextBox or other input control that accepts integer values.

2. Double:
The Double data type is used to represent numbers with decimal places.

It can store both positive and negative values, as well as zero. If you want to validate decimal numbers using the RangeValidator control, make sure to set the ControlToValidate property accordingly.

3. Date:
Date validation is another common scenario where we can utilize the RangeValidator control.

It supports validating dates within a specific range. To use this feature, set the ControlToValidate property to a TextBox or other input control that accepts date values.

Using the Type Property:

In addition to specifying the data type through ControlToValidate, you can also use the Type property of the RangeValidator control to explicitly define which data type you want to validate.

  • Integer: Set Type=”Integer” in conjunction with ControlToValidate.
  • Double: Set Type=”Double” in conjunction with ControlToValidate.
  • Date: Set Type=”Date” in conjunction with ControlToValidate.


Make sure to match the Type property with the appropriate ControlToValidate value. If there is a mismatch, the validation will not work correctly.

RangeValidation for Custom Data Types:

The RangeValidator control can also be used to validate custom data types by utilizing the ValidationDataType property. This property allows you to specify a custom data type using one of the many available enumeration values.

For example, if you have a custom data type called “MyCustomType,” you can set ValidationDataType=”Custom” and ControlToValidate=”MyCustomControl”. Then, in your server-side code, you can define a custom validation routine to handle MyCustomType validation.


In this tutorial, we explored the different data types supported by the RangeValidator control in ASP.NET. We learned that it supports integers, doubles, and dates out of the box. Additionally, we discovered how to use the Type property to explicitly specify the data type and how to validate custom data types using the ValidationDataType property.

Remember to choose the appropriate data type for your specific validation needs and double-check that the ControlToValidate and Type properties are set correctly. Happy coding!

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