具有 StandardValuesSupported 和自动完成功能的 StringConverter

发布于 2024-07-18 07:39:30 字数 1026 浏览 4 评论 0原文

我想开发一个具有标准值的 StringConverter，将其附加到 PropertyGrid 后将像具有自动完成功能的组合框一样。下面的示例将为我提供一个组合框，但没有自动完成功能 - 用户必须展开它并手动选择其中一项。有没有一种方法允许用户键入其中一个选项的开头，以便组合框会自动选择匹配的选项？

   public class ConverterSample : System.ComponentModel.StringConverter
   {        
      public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
      {
         //true means show a combobox
         return true;
      }

      public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)
      {
         return false;
      }


      public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
      {         
         return new StandardValuesCollection(new List<string>(){"Stack", "overflow", "rules");

  }

GetStandardValues 返回的列表必须是动态的，因此我不能在那里使用任何枚举。我从上面的例子中获取： http://www.codeproject.com/KB/cpp/ dropdownproperties.aspx

原文

I want to develop a StringConverter with standard values, which after attaching it to a PropertyGrid will act like comboBox with autocompletion. The example below will give me a comboBox, but without the autocompletion - user have to expand it and choose manually one of the items. Is there a way to allow user to type the beginning of one of the options, so the combobox will automatically select the matching one?

   public class ConverterSample : System.ComponentModel.StringConverter
   {        
      public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
      {
         //true means show a combobox
         return true;
      }

      public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)
      {
         return false;
      }


      public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
      {         
         return new StandardValuesCollection(new List<string>(){"Stack", "overflow", "rules");

  }

List returned by GetStandardValues has to be dynamic, so I can't use any enum there.
I took above example from: http://www.codeproject.com/KB/cpp/dropdownproperties.aspx

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