用三個數據源創建用戶控件，displaymember和valuemember

Question

我想創建一個自定義用戶控件，並且我需要在設計時獲得三個數據源，displaymember和value成員。

我可以得到下面的代碼數據源：

private BindingSource dataSource; 

[TypeConverter("System.Windows.Forms.Design.DataSourceConverter, System.Design")] 
[Category("Data")] 
[RefreshProperties(RefreshProperties.Repaint)] 
[AttributeProvider(typeof(IListSource))] 
[DefaultValue(null)] 
public BindingSource DataSource 
{ 
    get 
    { 
     return this.dataSource; 
    } 
    set 
    { 
     if (this.dataSource != value) 
     { 
      this.dataSource = value; 
     } 
    } 
} 

我不知道我必須讓valuemember和displaymember相關數據源

Answer 1

的這是如何做到你所要求的教程

http://msdn.microsoft.com/en-us/library/ms233787.aspx

Answer 2

我有一個支持查找數據綁定，而不是自定義控件，這裏的代碼屬性：

private System.Windows.Forms.ListBox dropdownsource = new ListBox(); 

    [Category("Data")] 
    [Browsable(true)] 
    [DefaultValue(null)] 
    [System.ComponentModel.Bindable(true)] 
    [TypeConverter("System.Windows.Forms.Design.DataSourceConverter, System.Design")] 
    [Editor("System.Windows.Forms.Design.DataSourceListEditor, System.Design", typeof(System.Drawing.Design.UITypeEditor))] 
    public object DataSource 
    { 
     get 
     { 
      return this.dropdownsource.DataSource; 
     } 
     set 
     { 
      if (this.dropdownsource.DataSource != value) 
       this.dropdownsource.DataSource = value; 
     } 
    } 

databindinglookupbindabledatasource