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protected void Page_Load(object sender, EventArgs e)
{
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{
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{
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return;
}
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protected void Button1_Click(object sender, EventArgs e)
{
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protected void ExportExcel()
{
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private void Page_Load(object sender, System.EventArgs e)
{
string checkCode = CreateRandomCode(4);
Session["CheckCode"] = checkCode;
CreateImage(checkCode);
}
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