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Specifying a Culture

The RadMonthYearPicker controls support the System.Globalization namespace. This namespace consists of classes (CompareInfo, CultureInfo, RegionInfo, etc.) that contain culture-related information such as the language, country/region, sort order for strings, calendars in use, and format patterns for dates, currency, and numbers. They are useful classes for writing internationalized applications.

For East Asian, Middle Eastern and other similar cultures, which have an alternative standard for a different Calendar implementation, RadMonthYearPicker supports their localization and native date and time value representation, but automatically uses the Gregorian calendar internally.


The CultureInfo class represents information about a specific culture including the names of the culture, the writing system, and the calendar used, as well as access to culture-specific objects that provide information for common operations, such as formatting dates and sorting strings.

The culture names follow the RFC 1766 standard in the format "-", where is a lowercase two-letter code derived from ISO 639-1 and is an uppercase two-letter code derived from ISO 3166. For example, U.S. English is "en-US".

To specify the CultureInfo that RadMonthYearPicker will be using you need to set the CUlture property.

The associated CultureInfo object controls:

  • The default format for date and time values that the control displays. You can override this pattern by specifying a date format pattern as the value of the following properties:

    • On RadMonthYearPicker the DateFormat and DisplayDateFormat properties of the embedded RadDateInput control (accessed through the DateInput property).
  • The strings used when applying a date format pattern such as month names, day names, separator characters, etc.

  • The way RadMonthYearPicker parses values that the user types into the input area.

The CultureInfo property of RadCalendar does not affect the labels on the buttons in the month/year navigation popup. For information on localizing these strings, see Localizing Strings.

Assigning the culture declaratively

You can assign the culture of a RadCalendar control declaratively in the source:

<telerik:RadMonthYearPicker RenderMode="Lightweight" ID="RadMonthYearPicker1" runat="server" Culture="en-US"> 
    <DateInput Culture="en-US"></DateInput>

Assigning the culture in the code-behind

You can assign a culture property in the code-behind as well:

protected void Page_Load(object sender, EventArgs e)
    RadMonthYearPicker1.Culture = new System.Globalization.CultureInfo("en-US", true);
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    RadMonthYearPicker1.Culture = New System.Globalization.CultureInfo("en-US", True)
End Sub
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