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wpf中如果想要使用openFileDialog，
需要引用using Microsoft.Win32;
而不是using System.Windows.Forms;
顯示對話框的時候使用ShowDialog()
判斷按鈕點擊，用ture和false，示例代碼如下：
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Title = "選擇文件";
openFileDialog.Filter = "rcf文件|*.rcf|rcf文件|*.rcf|所有文件|*.*";
openFileDialog.FileName = string.Empty;
openFileDialog.FilterIndex = 1;
openFileDialog.RestoreDirectory = true;
openFileDialog.DefaultExt = "rcf";
if (false == openFileDialog.ShowDialog())
{
return;
}
其實呢，問題就是wpf里面沒有現(xiàn)成的這個函數(shù)，這個應(yīng)該是直接調(diào)用win32api了。
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