I need to maintain an old legacy Windows Forms application. I just got the source code, no documentation or anything. I'm building the application using Visual Studio 2015 running on a 64-bit Windows 8.1 and using .NET Framework 4.5. Everything works fine except for one thing, a VbPowerPack (version 1.0.1644.16184, tottaly outdated) control named FileViewer is used to display contents of a folder and it just keeps throwing an exception for the first time that pane is set to be visible
System.OverflowException: Arithmetic operation resulted in an overflow.
at System.IntPtr.ToInt32()
at VbPowerPack.ShellFolder.GetTypeDescriptionForFile(String in_path) in C:\Documents and Settings\Ken\My Documents\Visual Studio Projects\VbPowerPack Source\VbPowerPack\ShellFolder.vb:line 264
at VbPowerPack.FileViewer.populateControl() in C:\Documents and Settings\Ken\My Documents\Visual Studio Projects\VbPowerPack Source\VbPowerPack\FileViewer.vb:line 992
at VbPowerPack.FileViewer.CreateHandle() in C:\Documents and Settings\Ken\My Documents\Visual Studio Projects\VbPowerPack Source\VbPowerPack\FileViewer.vb:line 866
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
at System.Windows.Forms.TabPage.set_Visible(Boolean value)
at System.Windows.Forms.TabControl.UpdateTabSelection(Boolean updateFocus)
at System.Windows.Forms.TabControl.OnSelectedIndexChanged(EventArgs e)
at System.Windows.Forms.TabControl.WmSelChange()
at System.Windows.Forms.TabControl.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
(Please note that I'm not Ken mentioned in the exception, the DLL must have been compiled on his computer, and I get the same exception, just without the Ken part, if I use another instance of the same DLL found on the internet)
after that, if click "Continue" in the "Unhandled Exception Window" and I click on another tab and then try this one again it shows the control without an exception being thrown again but none of the folder content is there.
I tried adding that same control an a new form in a newly created empty Windows Forms project inside this solution and it behaves the same. But when I create a new empty solution with a new Windows Forms project and use only the FileViewer control it works fine. Also it kind of works in the problematic solution when I open the form in design view (not running the application), it shows me the folder content. I tried debugging but the exception is thrown before it triggers any of the events like "VisibleChanged". I also tried commenting out any other code that could affect this but no luck. Here is how the control is initialized
public partial class DocumentsForm
{
private VbPowerPack.FileViewer fileViewer;
...
private void InitializeComponent()
{
this.fileViewer = new VbPowerPack.FileViewer();
...
this.fileViewer.AllowDrop = true;
this.fileViewer.ContextMenu = this.contextMenuFiles;
this.fileViewer.Dock = System.Windows.Forms.DockStyle.Fill;
this.fileViewer.HideSelection = false;
this.fileViewer.Location = new System.Drawing.Point(0, 34);
this.fileViewer.Margin = new System.Windows.Forms.Padding(2, 3, 2, 3);
this.fileViewer.Name = "fileViewer";
this.fileViewer.Path = "c:\\";
this.fileViewer.Size = new System.Drawing.Size(842, 482);
this.fileViewer.Sorting = System.Windows.Forms.SortOrder.Ascending;
this.fileViewer.TabIndex = 0;
this.fileViewer.UseCompatibleStateImageBehavior = false;
this.fileViewer.ItemClicked += new VbPowerPack.FileViewer.ItemClickedEventHandler(this.fileViewer_ItemClicked);
this.fileViewer.ItemDoubleClicked += new VbPowerPack.FileViewer.ItemDoubleClickedEventHandler(this.fileViewer_ItemDoubleClicked);
this.fileViewer.LocationChanged += new System.EventHandler(this.fileViewer_LocationChanged);
this.fileViewer.VisibleChanged += new System.EventHandler(this.fileViewer_VisibleChanged);
this.fileViewer.DragDrop += new System.Windows.Forms.DragEventHandler(this.fileViewer_DragDrop);
this.fileViewer.DragEnter += new System.Windows.Forms.DragEventHandler(this.fileViewer_DragEnter);
...
this.Controls.Add(this.fileViewer);
...
}
}
Struggling for a few days now. Any help and suggestions are welcome.
