PropertyDescriptorCollection.Find(String, Boolean) 方法

定义

命名空间:

System.ComponentModel

程序集:

System.ComponentModel.TypeConverter.dll

程序集:

System.dll

程序集:

netstandard.dll

返回具有指定名称的 PropertyDescriptor，使用布尔值指示是否忽略大小写。

public:
 virtual System::ComponentModel::PropertyDescriptor ^ Find(System::String ^ name, bool ignoreCase);

public virtual System.ComponentModel.PropertyDescriptor Find (string name, bool ignoreCase);

public virtual System.ComponentModel.PropertyDescriptor? Find (string name, bool ignoreCase);

abstract member Find : string * bool -> System.ComponentModel.PropertyDescriptor
override this.Find : string * bool -> System.ComponentModel.PropertyDescriptor

Public Overridable Function Find (name As String, ignoreCase As Boolean) As PropertyDescriptor

参数

name

String

要从集合中返回的 PropertyDescriptor 的名称。

ignoreCase

Boolean

如果要忽略属性名称的大小写，则为 true；否则为 false。

返回

PropertyDescriptor

具有指定名称的 PropertyDescriptor，或者如果该属性不存在，则为 null。

示例

下面的代码示例查找特定的 PropertyDescriptor。 它会在文本框中打印此 PropertyDescriptor 组件的类型。 它要求 button1 在窗体上实例化并 textBox1 已实例化。

private:
   void FindProperty()
   {
      // Creates a new collection and assign it the properties for button1.
      PropertyDescriptorCollection^ properties = TypeDescriptor::GetProperties( button1 );
      
      // Sets a PropertyDescriptor to the specific property.
      PropertyDescriptor^ myProperty = properties->Find( "Opacity", false );
      
      // Prints the property and the property description.
      textBox1->Text = myProperty->DisplayName + "\n" + myProperty->Description;
   }

private void FindProperty() {
   // Creates a new collection and assign it the properties for button1.
   PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(button1);

   // Sets a PropertyDescriptor to the specific property.
   PropertyDescriptor myProperty = properties.Find("Opacity", false);

   // Prints the property and the property description.
   textBox1.Text = myProperty.DisplayName + '\n' + myProperty.Description;
}

Private Sub FindProperty()
    ' Creates a new collection and assign it the properties for button1.
    Dim properties As PropertyDescriptorCollection = _
       TypeDescriptor.GetProperties(button1)
       
    ' Sets a PropertyDescriptor to the specific property.
    Dim myProperty As PropertyDescriptor = properties.Find("Opacity", False)
       
    ' Prints the property and the property description.
    textBox1.Text = myProperty.DisplayName & _
       Microsoft.VisualBasic.ControlChars.Cr & myProperty.Description
End Sub

另请参阅

• PropertyDescriptor
• TypeDescriptor