private void button_pptopen_Click(object sender, EventArgs e)
{
string filepath = "";
OpenFileDialog op = new OpenFileDialog();
op.Title = "请选择教学资源文件";
//op.Filter = "All Files(*.*)|*.*|ppt Files(*.ppt)|*.ppt|word 2007 Files(*.doc)|*.doc|excel 2007 Files(*.xls)|*.xls|word Files(*.docx)|*.docx|excel Files(*.xlsx)|*.xlsx";
op.Filter = "ppt Files(*.ppt,*.pptx)|*.ppt;*.pptx";
//op.Filter = "ppt Files(*.ppt,*.pptx)|*.ppt;*.pptx|Image Files(*.jpg,*.jpeg,*.bmp,*.png,*.gif)|*.jpg;*.jpeg;*.bmp;*.png;*.gif";
if (op.ShowDialog() == DialogResult.OK)
{
filepath = op.FileName;
string dir = filepath.Substring(0, filepath.LastIndexOf("\\"));
string fname = op.SafeFileName;
string extension = Path.GetExtension(op.FileName);
}
else
{
return;
}
if (myppt == null)
{
myppt = new MyPPT();
myppt.PPTOpen(filepath);
}
else
{
myppt.PPTClose();
myppt.PPTOpen(filepath);
}
}