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RadInputManager Overview

Broadly speaking, there are two groups of controls which are extended using the RadInputManager. The first are controls which are located directly on the page, such as a normal text box somewhere on the form. The second are text boxes located in another control- for example a text box nested in a repeater.

Additionally, within the RadInputManager, there are four types of settings which could be added:

  1. telerik:DateInputSetting – the targeted text box will be accepting input in a date format

  2. telerik:NumericTextBoxSetting – the targeted textbox will be accepting numeric input

  3. telerik:RegExpTextBoxSetting – the targeted text box will be accepting characters corresponding to a specified regular expression

  4. telerik:TextBoxSetting – the targeted text box will exhibit behavior like a normal RadTextBox

  5. telerik:RadMaskedTextBoxSetting – the targeted text box will exhibit behavior like a normal RadMaskedTextBox

Each one of these setting groups allows for different behavior. Let us assume that we have two standard textboxes on the form, and we wanted one of them to exhibit behavior similar to a RadTextBox, and the other one as a RadNumericTextBox. In this case, the declaration of the two textboxes, along with the RadInputManager, would look like this:

<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<br />
<telerik:RadInputManager RenderMode="Lightweight" ID="RadInputManager1" runat="server">
    <telerik:TextBoxSetting BehaviorID="Setting1" EmptyMessage="EmptyMessage55">
        <TargetControls>
            <telerik:TargetInput ControlID="TextBox1" />
        </TargetControls>
    </telerik:TextBoxSetting>
    <telerik:NumericTextBoxSetting Type="Currency" BehaviorID="Setting2">
        <TargetControls>
            <telerik:TargetInput ControlID="TextBox2" Enabled="true" />
        </TargetControls>
    </telerik:NumericTextBoxSetting>
</telerik:RadInputManager>

Each of the Setting tags contains a BehaviorID, which is used to identity settings pertaining to a given text box. These can later be retrieved on the client, for example, and access a property such as the EmptyMessage.

caution

Note that each input setting must have at least one target control, otherwise it will not be serialized to the client and its client object would not be instantiated.

Additionally, we can extend text boxes located in other controls. For example, let us assume that we have a repeater hosting a text box. Further, if we want the text box(es) nested in the repeater to accept only e-mail addresses (a regular expression is used to determine this behavior), the setup would look something like:

<asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
        <br />
        Internet e-mail address:
        <asp:TextBox ID="TextBox1" Text="mailto:e-mail@goes.here" runat="server"></asp:TextBox>
    </ItemTemplate>
</asp:Repeater>
<telerik:RadInputManager RenderMode="Lightweight" ID="RadInputManager1" runat="server">
    <telerik:RegExpTextBoxSetting EmptyMessage="EmptyMessage" BehaviorID="Setting3" ValidationExpression="^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$"
        ErrorMessage="ErrorMessage">
        <TargetControls>
            <telerik:TargetInput ControlID="Repeater1" />
        </TargetControls>
    </telerik:RegExpTextBoxSetting>
</telerik:RadInputManager>

Below is a list of tables covering the most important properties of the elements discussed up to now:

Common Settings

General

Name Description
BehaviorID A unique id for the settings related to a given textbox.
EmptyMessage The text which will be displayed before the user has entered any text.
SelectionOnFocus An enumeration which is used to determine how the input control behaves when it first gets input focus. The possible values are CaretToBeginning, CaretToEnd, None and SelectAll. The default one is CaretToEnd.
InitializeOnClient A property which indicates whether the client event handlers and css classes will be set on the client.
ErrorMessage A message which is displayed if the regular expression matching fails

Client Events

Name Description
OnBlur The name of the client side handler which will be raised when the control loses focus.
OnError The name of the client side function which will be called when an error occurs – the user enters invalid input. This event is not raised for the textbox control, since there is no input restriction.
OnFocus The name of the client side function which will be called when the control receives focus.
OnKeyPress The name of the client side function which will be called when the user presses a button, while the control has the focus.
OnValidating The name of the client side function which will be called when the entered data is being validated and parsed.
OnValueChanged The name of the client side function which will be called when the user changes the value of the input control.

CSS Classes

Name Description
EnabledCssClass The css style for enabled input control.
EmptyMessageCssClass The name of the css class which will be used to style the empty message text.
FocusedCssClass The css style for the focused state of the input control.
HoveredCssClass The css style for hovered state of the input control.
InvalidCssClass The name of the css class, which will be used to style the control, when the user enters invalid input
DisabledCssClass The name of the css class which will be used to style the control when it is disabled.
ReadOnlyCssClass The css style for read only state of the input control.

Validation

Name Description
IsRequired Indicates whether the control should be required on client or not.
Location Th URL for the WebService or Page which will be requested to validate data.
Method The method name in the WebService or Page which will be requested to validate data.
ValidateOnEvent Determines which event will cause the control to be validated.
ValidationGroup The name of the validation group to which this setting belongs.

TextBoxSettings

 

Name Description
PasswordStrengthSettings A group of properties used for setting up the password strength check feature when using a TextBox with TextMode set to Password.

RegExpTextBoxSetting

 

Name Description
IsRequiredFields A property which indicates whether the corresponding textboxes are required to have some values entered, or may be empty
ValidationExpression A regular expression, representing the matching criteria.
ValidationGroup The ValidationGroup to which the regular expression setting is assigned.

NumericTextBoxSetting

 

Name Description
KeepTrailingZerosOnFocus A property which determines if the zero numbers should remain when the control is focused, according to the DecimalDigits setting
NumberFormat-AllowRounding A setting which specifies whether the user input may be rounded
Type The type of the control – Currency/Number/Percent
MaxValue The maximal numeric value which can be entered in the control
MinValue The minimal numeric value which can be entered in the control

DateInputSetting

 

Name Description
ClearValueOnError Indicates whether the value entered into the textbox should be cleared on error.
Culture The culture used to format the date.
DateFormat The date format string for the control.
DisplayDateFormat The display date format used for the control. (Visible when the control is not on focus.)
MaxDate The maximal date which the user will be allowed to enter
MinDate The minimal date which the user will be allowed to enter
ShortYearCenturyEnd Indicates the end of the century that is used to interpret the year value when a short year (single-digit or two-digit year) is entered in the input.

DatePickerSetting

 

Name Description
ClearValueOnError Indicates whether the value entered into the textbox should be cleared on error.
Culture The culture used to format the date.
DateFormat The date format string for the control.
DisplayDateFormat The display date format used for the control. (Visible when the control is not on focus.)
EnableScreenBoundaryDetection Gets or sets whether the screen boundaries should be taken into consideration when the Calendar or TimeView are displayed.
EnableShadows Gets or sets whether popup shadows will appear.
MaxDate The maximal date which the user will be allowed to enter.
MinDate The minimal date which the user will be allowed to enter.
Overlay Gets or sets a value indicating whether the picker will create an overlay element to ensure popups are over a flash element or Java applet.
PopupDirection Gets or sets the direction in which the popup Calendar is displayed, with relation to the DatePicker control.
SharedCalendarID Gets or sets the ID of the calendar that will be used for picking dates. This property allows you to configure several datepickers to use a single RadCalendar instance.
ShortYearCenturyEnd Indicates the end of the century that is used to interpret the year value when a short year (single-digit or two-digit year) is entered in the input.

RadMaskedTextBoxSetting

 

Name Description
Mask The mask used to identify proper user input.
PromptChar Defines the prompt char of the mask.
AllowEmptyEnumerations Allows the enumerated parts of the mask to be left blank.
ZeroPadNumericRanges Enforces the values of numeric range parts of the mask to have a fixed width.
NumericRangeAlign Controls whether the values of numeric range parts are aligned to the left or to the right.
DisplayMask Changes the mask that is used to format the value when the masked text box does not have focus.
DisplayPromptChar Changes the prompt character for unentered values when the masked text box does not have focus.
HideOnBlur Hides the prompts when the value has not been set and the masked text box does not have focus.