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How to make the FullPath property of the Properties Grid editable

1. Add reference to System.Design

2. Add a class module:

    //FileNameEditor override

    class DllFileNameEditor :

        System.Windows.Forms.Design.FileNameEditor

    {

        protected override void InitializeDialog(OpenFileDialog openFileDialog)

        {

            base.InitializeDialog(openFileDialog);

            openFileDialog.Filter = "Class Library Files (*.dll) |*.dll|All (*.*) |*.*";

            openFileDialog.Title = "Select Class Library File";

        }

    }

3.Modify Property:

        /// <summary>

        /// Dll name

        /// </summary>

        [Category("Identity")]

        [Description("Dll Location")]

        [EditorAttribute(typeof(DllFileNameEditor), typeof(System.Drawing.Design.UITypeEditor))]

        public string DllName

        {

            get { return this.GraphDoc.DllName; }

            set { this.GraphDoc.DllName = value; }

        }

Additional sources:

msdn

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