I don’t see any out of the box support by the OpenFileDialog Control. However, you can try the following, Set the InitialDirectory property to your program path. Then if a user selects a particular path outside of your program path, use the FileOk event to check this and bring him back to the InitialDirectory. If … Read more
Use OpenFileDialog.SafeFileName OpenFileDialog.SafeFileName Gets the file name and extension for the file selected in the dialog box. The file name does not include the path.
Or you can make it not do that. See the FileDialog.RestoreDirectory property.
What I generally do is create an interface for an application service that performs this function. In my examples I’ll assume you are using something like the MVVM Toolkit or similar thing (so I can get a base ViewModel and a RelayCommand). Here’s an example of an extremely simple interface for doing basic IO operations … Read more
No, OpenFileDialog and SaveFileDialog are both derived from FileDialog, which is inherently modal, so (as far as I know) there’s no way of creating a non-modal version of either of them.
If you use the FileNames property instead of the FileName property, you get a string array of each file selected, you select multiple files using the shift key. Like so: private void button1_Click(object sender, EventArgs e) { OpenFileDialog x = new OpenFileDialog(); x.Multiselect = true; x.ShowDialog(); string[] result = x.FileNames; foreach (string y in result) … Read more
About the reported error: System.NullReferenceException: Object reference not set to an instance of an object. sConnectionString was null. The exception is generated because the Connection string is declared as: public string sConnectionString; Since it’s never initialized, because the initialization of the Connection string is performed only for some file types but not all those included … Read more
This is an example of using Getpixel and SetPixel. For (much much) faster filter results look into Lockbits and also into using a ColorMatrix private void button2_Click(object sender, EventArgs e) { // we pull the bitmap from the image Bitmap bmp = (Bitmap) pictureBox1.Image; // we change some picels for (int y = 100; y … Read more
Yes, that’s possible, I did the same kind of customization with SaveFileDialog successfully and it’s pretty interesting. Follow the following links: http://www.codeproject.com/KB/dialog/OpenFileDialogEx.aspx http://www.codeproject.com/KB/cs/getsavefilename.aspx http://www.codeproject.com/KB/dialog/CustomizeFileDialog.aspx Also my own questions too will help you: Change default arrangement of Save and Cancel buttons in SaveFileDialog How to stop overwriteprompt when creating SaveFileDialog using GetSaveFileName You have to use … Read more
Technically, it is possible. The shell dialog used by FolderBrowseDialog has the ability to return both files and folders. Unfortunately, that capability isn’t exposed in .NET. Not even reflection can poke the required option flag. To make it work, you’d have to P/Invoke SHBrowseForFolder() with the BIF_BROWSEINCLUDEFILES flag turned on in BROWSEINFO.ulFlags (value = 0x4000). … Read more