ShouldSerializeNullText メソッド (UltraNumericEditor)

NullText プロパティがデフォルト値に設定されているかどうかを示すブール値を返します。

シンタックス

Visual Basic

'宣言
 
Protected Function ShouldSerializeNullText() As Boolean

C#

protected bool ShouldSerializeNullText()

戻り値の型

プロパティのシリアル化が必要かどうかを示すブール値

解説

NullText プロパティがデフォルト値に設定されていない場合は True、設定されている場合は False を返します。

ResetNullText メソッドを使用し、このプロパティをデフォルトの値にリセットします。

使用例

Visual Basic

' Each settable property on an Infragistics controls and sub-object has an
' associated ShouldSerializeXXX method (where XXX is the property name)
' that returns true if the property has been modified and needs to be
' serialized.  Since this method is protected, it is only available to
' classes derived from Infragistics controls or sub-objects.
'
' The following example shows how to create a class derived from an
' Infragistics UltraToolbarsManager control and expose a property that
' calls UltraToolbarManager's protected ShouldSerializeStyle method
' to return whether the Style property is set to its default value.

Public Class MyToolbarsManager
      Inherits UltraToolbarsManager
 
      Public ReadOnly Property IsStyleSetToDefaultValue() As Boolean
            Get
                  ' Call our UltraToolbarManager base class protected method
                  ' ShouldSerializeStyle to determine if the Style property
                  ' is currently set to its default value.
                  If Me.ShouldSerializeStyle() = True Then
                        return False
                  else
                        return True
                  End If
            End Get
      End Property
End Class

C#

// Each settable property on an Infragistics controls and sub-object has an
// associated ShouldSerializeXXX method (where XXX is the property name)
// that returns true if the property has been modified and needs to be
// serialized.  Since this method is protected, it is only available to
// classes derived from Infragistics controls or sub-objects.
//
// The following example shows how to create a class derived from an
// Infragistics UltraToolbarsManager control and expose a property that
// calls UltraToolbarManager's protected ShouldSerializeStyle method
// to return whether the Style property is set to its default value.

public class MyToolbarsManager : UltraToolbarsManager
{
      public bool IsStyleSetToDefaultValue
      {
            get
            {
                  // Call our UltraToolbarManager base class protected method
                  // ShouldSerializeStyle to determine if the Style property
                  // is currently set to its default value.
                  if (this.ShouldSerializeStyle())
                        return false;
                  else
                        return true;
            }
      }
}