"Bill Gauvey" wrote:

> I have a class that works great within the propertygrid with an exception of
> one member.  It is a collection of a simple class objects that I have. I have
> tried everything but cant get the class to display in the CollectionEditor. 
> What does it take to get the class to display in the CollectionEditor?
>
>
> Thanks,

"Steve Teeples" wrote:

> Bill, I'm new to PropertyGrids and had a similar question several weeks ago. 
> Some folks helped me out.  I learn best by example so I'm pasting some code
> as an example of a class I have that is displayed in a propertygrid in my
> application.    The second class, "FilePropertiesConverter" is the key.  Hope
> this helps.
>
> using System;
> using System.IO;
> using System.Collections;
> using System.Collections.Specialized;
> using System.Windows.Forms;
> using System.ComponentModel;
> using System.ComponentModel.Design;
> using System.Drawing.Design;
>
> namespace CheckIt
> {
>     /// <summary>
>     /// This class defines the properties looked for when inspecting files.
>     /// </summary>
>     [TypeConverterAttribute(typeof(FilePropertiesConverter)),
>     DescriptionAttribute("Define the File Test Properties"),
>     Serializable()]
>     public class FileProperties
>     {
>         /// <summary>
>         /// Default constructor
>         /// </summary>
>         public FileProperties()
>         {
>         }
>
>         /// <summary>
>         /// The path to the file being inspected.
>         /// </summary>
>         private string filepath = "";
>
>         /// <summary>
>         /// Get or set the path to the file that is being inspected.
>         /// </summary>
>         [Editor(typeof(System.Windows.Forms.Design.FileNameEditor),
> typeof(System.Drawing.Design.UITypeEditor)),
>         Description("Identifies the path searched when looking for a file."),
>         Category(TestCaseStrings.strTestComponent),DefaultValueAttribute("")]
>         public string FilePath
>         {
>             get { return filepath; }
>             set
>             {
>                 filepath = value;
>                 if (filepath != null)
>                     FileSize = GetFileSize();
>             }
>         }
>
>         /// <summary>
>         /// Filesize of the file to be inspected.
>         /// </summary>
>         private long filesize = 0;
>
>         /// <summary>
>         /// Get or set the filesize of the file.
>         /// </summary>
>         [Description("The value represents the file's size, in bytes, that is
> expected during the test."),
>         Category(TestCaseStrings.strTestComponent), DefaultValueAttribute(0)]
>         public long FileSize
>         {
>             get { return filesize; }
>             set { filesize = value; }
>         }
>
>         /// <summary>
>         /// Check the file size during the test.
>         /// </summary>
>         private bool checkFileSize = false;
>        
>         /// <summary>
>         /// If true, the file size is checked during the test, else false..
>         /// </summary>
>         [Description("Determines if the file's size should be checked during the
> test."),
>         Category(TestCaseStrings.strTestComponent), DefaultValueAttribute(false)]
>         public bool CheckFileSize
>         {
>             get { return this.checkFileSize; }
>             set { this.checkFileSize = value; }
>         }
>        
>         /// <summary>
>         /// Gets the file size of the selected file.
>         /// </summary>
>         /// <returns>long representing the filesize in bytes.</returns>
>         [Browsable(false)]
>         private long GetFileSize()
>         {
>             if (File.Exists(filepath) == true)
>             {
>                 FileInfo fileinfo = new FileInfo(filepath);
>                 return fileinfo.Length;
>             }
>             return 0;
>         }
>     }
>
>     /// <summary>
>     /// This class is the converter for the FileProperties class.
>     /// </summary>
>     public class FilePropertiesConverter : ExpandableObjectConverter
>     {
>         /// <summary>
>         /// The destination class uses this filetype so return it.
>         /// </summary>
>         /// <param name="context"></param>
>         /// <param name="destinationType"></param>
>         /// <returns></returns>
>         public override bool CanConvertTo(ITypeDescriptorContext context, Type
> destinationType)
>         {
>             if (destinationType == typeof(FileProperties))
>                 return true;
>
>             return base.CanConvertTo (context, destinationType);
>         }
>
>         /// <summary>
>         /// Override teh ConvertTo class to check for string types for the
> FileProperties class.
>         /// </summary>
>         /// <param name="context"></param>
>         /// <param name="culture"></param>
>         /// <param name="value"></param>
>         /// <param name="destinationType"></param>
>         /// <returns></returns>
>         public override object ConvertTo(ITypeDescriptorContext context,
> System.Globalization.CultureInfo culture, object value, Type destinationType)
>         {
>             if (destinationType == typeof(System.String) && value is FileProperties)
>             {
>                 FileProperties fp = (FileProperties)value;
>                 return    "FilePath:" + fp.FilePath +
>                         ", FileSize: " + fp.FileSize +
>                         "CheckFileSize: " + fp.CheckFileSize;
>             }
>             return base.ConvertTo (context, culture, value, destinationType);
>         }
>     }
> }
>
>
> "Bill Gauvey" wrote:
>
> > I have a class that works great within the propertygrid with an exception of
> > one member.  It is a collection of a simple class objects that I have. I have
> > tried everything but cant get the class to display in the CollectionEditor. 
> > What does it take to get the class to display in the CollectionEditor?
> >
> >
> > Thanks,