NamedRange.Validation Property
Gets a Validation object that represents data validation for the NamedRange control.
Namespace: Microsoft.Office.Tools.Excel
Assembly: Microsoft.Office.Tools.Excel (in Microsoft.Office.Tools.Excel.dll)
Syntax
'Declaration
ReadOnly Property Validation As Validation
Validation Validation { get; }
Property Value
Type: Validation
A Validation object that represents data validation for the NamedRange control.
Remarks
You must use the Startup event handler of a worksheet to add validation to a named range. For more information about the Startup event handler, see Events in Office Projects.
Examples
The following code example uses the Validation property to verify that a string with at least three characters is entered into a NamedRange. The SetValidation method must be called from the Startup event handler.
This example is for a document-level customization.
Private Sub SetValidation()
Dim namedRange1 As Microsoft.Office.Tools.Excel.NamedRange _
= Me.Controls.AddNamedRange(Me.Range("A1"), _
"namedRange1")
namedRange1.Validation.Add( _
Excel.XlDVType.xlValidateTextLength, _
Excel.XlDVAlertStyle.xlValidAlertStop, _
Excel.XlFormatConditionOperator.xlGreater, 3, )
namedRange1.Validation.InputMessage = "Enter a name."
namedRange1.Validation.ErrorMessage = _
"Please enter a name with 3 or more characters."
End Sub
private void SetValidation()
{
Microsoft.Office.Tools.Excel.NamedRange namedRange1 =
this.Controls.AddNamedRange(this.Range["A1"],
"namedRange1");
namedRange1.Validation.Add(
Excel.XlDVType.xlValidateTextLength,
Excel.XlDVAlertStyle.xlValidAlertStop,
Excel.XlFormatConditionOperator.xlGreater, 3);
namedRange1.Validation.InputMessage = "Enter a name.";
namedRange1.Validation.ErrorMessage =
"Please enter a name with 3 or more characters.";
}
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.