Telerik RadInput exposes server-side API allowing the developer to customize RadDateInput, RadNumericTextBox, RadTextBox RadMaskedTextBox programmatically in code-behind.
RadDateInput
The extract of the source code below illustrates how you can customize an instance of RadDateInput programmatically in code-behind:
| C# |
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private void Page_Load(object sender, System.EventArgs e)
{
RadDateInput1.Culture = new CultureInfo("en-US");
RadDateInput1.DateFormat = "dd MMMM yyyy";
RadDateInput1.SelectedDate = DateTime.Now;
} |
| VB.NET |
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Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
RadDateInput1.Culture = New CultureInfo("en-US")
RadDateInput1.DateFormat = "dd MMMM yyyy"
RadDateInput1.SelectedDate = DateTime.Now
End Sub |
RadNumericTextBox
The extract of the source code below illustrates how you can customize an instance of RadNumericTextBox programmatically in code-behind:
| C# |
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private void Page_Load(object sender, System.EventArgs e)
{
RadNumericTextBox1.Culture = new CultureInfo("en-US");
RadNumericTextBox1.Type = Telerik.WebControls.NumericType.Currency;
RadNumericTextBox1.ShowSpinButtons = true;
}
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| VB.NET |
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Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
RadNumericTextBox1.Culture = new CultureInfo("en-US")
RadNumericTextBox1.Type = Telerik.WebControls.NumericType.Currency
RadNumericTextBox1.ShowSpinButtons = True
End Sub |
RadTextBox
The extract of the source code below illustrates how you can customize an instance of RadNumericTextBox programmatically in code-behind:
| C# |
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private void Page_Load(object sender, System.EventArgs e)
{
RadTextBox1.TextMode = Telerik.WebControls.InputMode.MultiLine;
RadTextBox1.EmptyMessage = "Type here";
RadTextBox1.MaxLength = 30;
} |
| VB.NET |
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Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
RadTextBox1.TextMode = Telerik.WebControls.InputMode.MultiLine
RadTextBox1.EmptyMessage = "Type here"
RadTextBox1.MaxLength = 30
End Sub |
RadMaskedTextBox
The extract of the source code below illustrates how to build the mask programmatically:
| C# |
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private void Page_Load(object sender, System.EventArgs e)
{
NumericRangeMaskPart rangePart = new NumericRangeMaskPart();
rangePart.LowerLimit = 0;
rangePart.UpperLimit = 255;
RadMaskedTextBox1.MaskParts.Add(rangePart);
LiteralMaskPart literalPart = new LiteralMaskPart();
literalPart.Text = ".";
RadMaskedTextBox1.MaskParts.Add(literalPart);
} |
| VB.NET |
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Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim rangePart As New NumericRangeMaskPart
rangePart.LowerLimit = 0
rangePart.UpperLimit = 255
RadMaskedTextBox1.MaskParts.Add(rangePart)
Dim literalPart As New LiteralMaskPart
literalPart.Text = "."
RadMaskedTextBox1.MaskParts.Add(literalPart)
End Sub |
All controls provide OnTextChanged server event which will be raised when the AutoPostBack property of the corresponding RadInput control is set to true, the user types valid entry and the input loses focus.
The postback request can be cancelled (for RadDateInput, RadNumericTextBox and RadTextBox) hooking the OnValueChanged client event of the input and returning false from its handler.
| [ASPX/ASCX] |
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<script type="text/javascript">
function ValueChanged(sender, e)
{
//return false here if you would like to cancel a postback request
}
</script>
<rad:RadTextBox id="RadTextBox1" runat="server">
<ClientEvents OnValueChanged="ValueChanged" />
<rad:RadTextBox>
<%-- The same event can be wired for the RadNumericTextBox or RadDateInput --%> |
| VB.NET |
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Protected Sub RadTextBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadTextBox1.TextChanged
End Sub |
| C# |
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protected void RadTextBox1_TextChanged(object sender, System.EventArgs e)
{
//execute custom logic here
//the same event can be handled for the rest of the input controls
} |
See Also