The RangeValidator Control (Chapter 3)

You can use this control to check if an input is within an acceptable range. Suppose that we want to provide a textbox for collecting data on “number of dependents.”We want to enforce a constraint that this field should be from 0 to 10. Figure 3.55 illustrates the use of a RangeValidator in this particular situation.
Figure 3.55 Using the RangeValidator Control

In our code, we have used the type, minimumValue, and maximumValue properties of a RangeValidator to apply the constraint.We have applied the RangeValidator as follows:

(The complete code is available in Validator4.aspx.)

<asp:RangeValidator id="ranvDependents" runat="server"
display="static" controlToValidate="txtDependents"
errorMessage="Must be from 0 to 10"
type="Integer" minimumValue=0 maximumValue=10>
</asp:RangeValidator></br>

posted by Mr.Q at 11:11 PM