Save file with appropriate extension in a Save File prompt
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06-07-2019 - |
Question
In my application I use a SaveFileDialog to pop up a Save As window. I have restricted in the file type section the file to be saved as .dat with the following code.
sfdialog.Filter = "Data Files (*.dat*)|*.dat*";
What I want to know how to do is make it automatically save with the .dat extension. Currently it just saves with no extension unless I specifically save it as filename.dat.
Solution
SaveFileDialog dlg = new SaveFileDialog();
dlg.Filter = "Data Files (*.dat)|*.dat";
dlg.DefaultExt = "dat";
dlg.AddExtension = true;
OTHER TIPS
The AddExtension and DefaultExt properties. For example:
sfdialog.DefaultExt = "dat";
sfdialog.AddExtension = True;
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