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/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.ShowDialog();
ofd.Filter = "Excel Îļþ(*.xls)|";
ofd.ValidateNames = true;
ofd.CheckPathExists = true;
ofd.CheckFileExists = true;
string filepath = ofd.FileName;
this.textBox1.Text = filepath;
}
public void ExecMothod()
{
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