Saving the selected folder to extension zip c#

Question

Hi, I created a zip folder application in c# where users can select their folder and zip it in their selected desired location. This is the code: but when I test it and run it and zip a folder it is not zipping into type Compressed(zipped) folder in file explorer. Example(if I zip folder "TestZip" to my desired location, it just saves the "TestZip" file to type "File" in file explorer instead of type "Compressed(zipped) folder". Please help me with this issue. And even on the Save File Dialog there are no options in the file filter.

 DialogResult result = saveFileDialog1.ShowDialog();


            if (result == DialogResult.OK)
            {
                if (comboBox1.SelectedItem == "Zip a Folder")
                {
                    ZipFile.CreateFromDirectory(label2.Text, saveFileDialog1.FileName);

                }
                else if (comboBox1.SelectedItem == "Zip a File")    
                {
                    string[] files = label2.Text.Split(',');
                    ZipArchive zip = ZipFile.Open(saveFileDialog1.FileName, ZipArchiveMode.Create);
                    foreach (string file in files)
                    {
                        zip.CreateEntryFromFile(file, Path.GetFileName(file), CompressionLevel.Optimal);
                    }
                    zip.Dispose();
                }
                MessageBox.Show("ZIP file created successfully!");
            }

Answer 1

The generated file lacks a suffix. You can manually rename this file and add .zip at the end.

But a better way is to add this sentence in the code:

            saveFileDialog1.Filter = "ZIP Folders (.ZIP)|*.zip";  

Note Please use it before calling saveFileDialog, such as in the constructor or in the Form_load event.

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