ASP.NET Mobile RangeValidator Control
 Complete ASP.NET Mobile Reference
Definition and Usage
The RangeValidator control is used to check that the user enters an input value that
falls between two values. It is possible to check ranges within
numbers, dates, and characters.
Note: The validation will not fail if the input control is empty. Use
the RequiredFieldValidator control to make the field required.
Properties
| Property |
Value |
Description |
| Alignment |
left
center
right |
Optional. How to align the control |
| BackColor |
rgb(x,x,x)
#xxxxxx
colorname |
Optional. A background color for the control |
| ControlToValidate |
id_of_target_control |
Optional. The id of the control to validate |
| Display |
None
Static
Dynamic |
Optional. The display behavior for the validation control.
Legal values are:
- None (the control is not displayed. Used to show the error message
only in the ValidationSummary control)
- Static (the control displays an error message if validation fails.
Space is reserved on the page for the message even if the input passes
validation
- Dynamic (the control displays an error message if validation fails.
Space is not reserved on the page for the message if the input passes
validation
Dynamic is default |
| ErrorMessage |
errortext_for_summary |
Optional. The text to display in the ValidationSummary
control when validation fails |
| ForeColor |
rgb(x,x,x)
#xxxxxx
colorname |
Optional. A foreground color for the control |
| Font-Bold |
false
true |
Optional. Specifies whether or not the text in the control should be bold |
| Font-Italic |
false
true |
Optional. Specifies whether or not the text in the control should be italic |
| Font-Name |
fontname |
Optional. Specifies the font name of the text in the
control |
| Font-Size |
normal
small
large |
Optional. Specifies the font size of the text in the
control |
| id |
unique_name |
Optional. A unique id for the control |
| MaximumValue |
max_value |
Optional. Specifies the maximum value of the control that
is validated |
| MinimumValue |
min_value |
Optional. Specifies the minimum value of the control that
is validated |
| runat |
"server" |
Required. Specifies that the control is a server control |
| StyleReference |
name_of_style_element |
Optional. Specifies a reference to a style to be applied to
the control |
| Text |
errortext |
Optional. The message to display when validation fails |
| Type |
Currency
Date
Double
Integer
String |
Optional. Specifies the data type of the values to compare |
| Wrapping |
wrap
nowrap |
Optional. Specifies whether or not the text in the control should wrap |
Example 1
The following example contains two forms in an .aspx file. The first form has
a label with the text "Please enter a number from 1 through 100", an input box to input
a number, a RangeValidator control that checks that the input value is a number
from 1 through 100, a RequiredFieldValidator control that checks that the input
field isn't empty, and a submit button. The second page is activated by the
submit button on the first page, and displays a response. If the input value
validates as an error, an error message is displayed:
<%@ Page
Inherits="System.Web.UI.MobileControls.MobilePage"%>
<%@ Register TagPrefix="Mobile"
Namespace="System.Web.UI.MobileControls"
Assembly="System.Web.Mobile" %>
<script runat="server">
sub page2(Sender as Object,E as EventArgs)
if Page.IsValid then
ActiveForm=f2
lbl2.Text="You entered number " & txt1.text
end if
end sub
</script>
<Mobile:Form id="f1" runat="server">
<Mobile:Label runat="server">
Please enter a number from 1 through 100
</Mobile:Label>
<Mobile:TextBox id="txt1" runat="server"/>
<Mobile:RangeValidator
ControlToValidate="txt1"
Type="Integer"
MaximumValue="100"
MinimumValue="1"
Text="Invalid number"
runat="server" />
<Mobile:RequiredFieldValidator
ControlToValidate="txt1"
Text="A number is required"
runat="server" />
<Mobile:Command runat="server"
OnClick="page2">Submit
</Mobile:Command>
</Mobile:Form>
<Mobile:Form id="f2" runat="server">
<Mobile:Label id="lbl2" runat="server" />
</Mobile:Form>
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