Propertygrid: How to show only specific file extensions?

 

Use Editor Attribute

 

[DisplayName("Resume")]
[Description("Resume File Name")]
[Editor(typeof(DocFileEditor), typeof(UITypeEditor))]
public string ResumeFile
{
    get
    {
        return _ResumeFile;
    }
    set
    {
        _ResumeFile = value;
    }
}

 

 

Override InitializeDialog method and provide Filter string that describes allowed file extensions

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Windows.Forms.Design;

namespace WindowsApplication1
{
class DocFileEditor : FileNameEditor
{
    ///<summary>
    ///Initializes the open file dialog when it is created.
    ///</summary>
    ///
    ///<param name="openFileDialog">The <see cref="T:System.Windows.Forms.OpenFileDialog">
</see> to use to select a file name. </param>
    protected override void InitializeDialog(OpenFileDialog openFileDialog)
    {
        openFileDialog.CheckFileExists = false;
        openFileDialog.Filter = "Doc files (*.doc)|*.doc|All files (*.*)|*.*";

    }
}
}