如何使用c＃WPF中的OpenFileDialog过滤自定义格式

Question

我正在尝试使用我创建的自定义文件格式向我的OpenFileDialog添加过滤器这是我到目前为止所拥有的：

private void btnSymKey_Click(object sender, RoutedEventArgs e)
    {
        OpenFileDialog openFileDialog1 = new OpenFileDialog();
        openFileDialog1.Filter = "public key (*.publ)";
        openFileDialog1.FilterIndex = 2;
        if (openFileDialog1.ShowDialog() == true)
        {
            DecryptionPathes.encryptedKey = System.IO.Path.GetFullPath(openFileDialog1.FileName);

            txtSymKeyPath.Text = DecryptionPathes.encryptedKey;

            this.btnSafeDecrypt.Visibility = Visibility.Visible;
            this.btnSafeDecrypt.IsEnabled = true;
            this.txtSafeDecryptPath.Visibility = Visibility.Visible;
        }
    }

但这不起作用，因为OpenFileDialog不知道“.publ”还有办法过滤这些文件吗？

Answer 1

尝试以下代码

openFileDialog1.Filter = "public key  (*.publ)|*.publ";

Answer 2

尝试提供这样的过滤器。我用它来过滤PDF。它应该工作。

openFileDialog1.openFileDialog1.Filter = "publ Files|*.publ";