A thread is either STA or MTA it can’t be specified just for one method so the attribute must be present on the entry point. From STAThreadAttribute in MSDN : Apply this attribute to the entry point method (the Main() method in C# and Visual Basic). It has no effect on other methods. If this … Read more
For OpenFileDialog: OpenFileDialog choofdlog = new OpenFileDialog(); choofdlog.Filter = “All Files (*.*)|*.*”; choofdlog.FilterIndex = 1; choofdlog.Multiselect = true; if (choofdlog.ShowDialog() == DialogResult.OK) { string sFileName = choofdlog.FileName; string[] arrAllFiles = choofdlog.FileNames; //used when Multiselect = true } For FolderBrowserDialog: FolderBrowserDialog fbd = new FolderBrowserDialog(); fbd.Description = “Custom Description”; if (fbd.ShowDialog() == DialogResult.OK) { string sSelectedPath … Read more
You need to add to csproj an additional switch: <UseWindowsForms>true</UseWindowsForms> Add it below UseWpf. Then try rebuild. After this, you should be able to use Forms namespace.
You need to add a reference to System.Windows.Forms.dll, then use the System.Windows.Forms.FolderBrowserDialog class. Adding using WinForms = System.Windows.Forms; will be helpful.
Windows Presentation Foundation 4.5 Cookbook by Pavel Yosifovich on page 155 in the section on “Using the common dialog boxes” says: “What about folder selection (instead of files)? The WPF OpenFileDialog does not support that. One solution is to use Windows Forms’ FolderBrowseDialog class. Another good solution is to use the Windows API Code Pack … Read more
The fundamental problem is a poor design decision in the FolderBrowserDialog. First, we need to realize that the FolderBrowserDialog is not a .NET control, but is rather the Common Dialog and is part of Windows. The designer of this dialog elected not to send the TreeView control a TVM_ENSUREVISIBLE message after the dialog is displayed … Read more
Expand it first: string path = Environment.ExpandEnvironmentVariables(value); http://msdn.microsoft.com/en-us/library/system.environment.expandenvironmentvariables.aspx