Nullable プロパティ (UltraDateTimeEditor)

コントロールの Value プロパティに null 値を設定できるかどうかを示す値を取得または設定します。

シンタックス

Visual Basic

'宣言
 
Public Property Nullable As Boolean

C#

public bool Nullable {get; set;}

使用例

Visual Basic

Imports Infragistics.Win
Imports Infragistics.Win.UltraWinEditors

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        '	Set the Nullable property to true so the control's Value property
        '	can be set to Nothing
        Me.UltraDateTimeEditor1.Nullable = True

        '	Set the NullText property so the end user knows that there is
        '	no valid date selected
        Me.UltraDateTimeEditor1.NullText = "[no date selected]"

    End Sub

C#

using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinEditors;

		private void button1_Click(object sender, System.EventArgs e)
		{
			//	Set the Nullable property to true so the control's Value property
			//	can be set to null
			this.ultraDateTimeEditor1.Nullable = true;

			//	Set the NullText property so the end user knows that there is
			//	no valid date selected
			this.ultraDateTimeEditor1.NullText = "[no date selected]";
		}