MergablePropertyAttribute.AllowMerge 属性

获取一个值，该值指示该属性 (Property) 能否与“属性”窗口属于其他对象的属性 (Property) 组合。

**命名空间:**System.ComponentModel
**程序集:**System（在 system.dll 中）

语法

声明
Public ReadOnly Property AllowMerge As Boolean
用法
Dim instance As MergablePropertyAttribute
Dim value As Boolean

value = instance.AllowMerge

public bool AllowMerge { get; }

public:
property bool AllowMerge {
    bool get ();
}

/** @property */
public boolean get_AllowMerge ()

public function get AllowMerge () : boolean

属性值

如果该属性可以与“属性”窗口中属于其他对象的属性进行组合，则为 true；否则为 false。

示例

下面的示例检查 MyProperty 是否适合合并。首先，代码通过下面的方法获取 MyProperty 的属性 (Attribute)：

• 检索具有该对象的所有属性 (Property) 的 PropertyDescriptorCollection。

• 对 PropertyDescriptorCollection 进行索引，以获取 MyProperty。

• 将该属性 (Property) 的属性 (Attribute) 保存在属性 (Attribute) 变量中。

然后，代码将 myAttribute 设置为 AttributeCollection 中 MergablePropertyAttribute 的值，并检查该属性 (Property) 是否适合合并。

' Gets the attributes for the property.
Dim attributes As AttributeCollection = _
   TypeDescriptor.GetProperties(Me)("MyPropertyProperty").Attributes
       
' Checks to see if the property is bindable.
Dim myAttribute As MergablePropertyAttribute = _
   CType(attributes(GetType(MergablePropertyAttribute)), _
   MergablePropertyAttribute)
If myAttribute.AllowMerge Then
    ' Insert code here.
End If

// Gets the attributes for the property.
AttributeCollection attributes = 
   TypeDescriptor.GetProperties(this)["MyPropertyProperty"].Attributes;

// Checks to see if the property is bindable.
MergablePropertyAttribute myAttribute = (MergablePropertyAttribute)attributes[typeof(MergablePropertyAttribute)];
if(myAttribute.AllowMerge) {
   // Insert code here.
}

// Gets the attributes for the property.
AttributeCollection^ attributes = TypeDescriptor::GetProperties( this )[ "MyPropertyProperty" ]->Attributes;

// Checks to see if the property is bindable.
MergablePropertyAttribute^ myAttribute = dynamic_cast<MergablePropertyAttribute^>(attributes[ MergablePropertyAttribute::typeid ]);
if ( myAttribute->AllowMerge )
{
   // Insert code here.
}

// Gets the attributes for the property.
AttributeCollection attributes = 
    TypeDescriptor.GetProperties(this).get_Item
    ("MyPropertyProperty").get_Attributes();

// Checks to see if the property is bindable.
MergablePropertyAttribute myAttribute = 
    ((MergablePropertyAttribute)(attributes.get_Item
    (MergablePropertyAttribute.class.ToType())));

if (myAttribute.get_AllowMerge()) {
    // Insert code here.
}

// Gets the attributes for the property.
var attributes : AttributeCollection = TypeDescriptor.GetProperties(this)["MyPropertyProperty"].Attributes
       
// Checks to see if the property is bindable.
var myAttribute : MergablePropertyAttribute = MergablePropertyAttribute(attributes(MergablePropertyAttribute))
if(myAttribute.AllowMerge){
  // Insert code here.
}

平台

Windows 98、Windows 2000 SP4、Windows Millennium Edition、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

请参见

参考

MergablePropertyAttribute 类
MergablePropertyAttribute 成员
System.ComponentModel 命名空间
MergablePropertyAttribute 类
Attribute
PropertyDescriptor
AttributeCollection 类
PropertyDescriptorCollection