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try
{
if(!int.parse(txtbox.text.trim()))
{
//ÇëÊäÈëÊý×Ö
}
}
catch
{
}
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string pattern = @"[0-9]+$"; TextBox prices = new TextBox(); if(prices.Text.Trim()!="") { if(Regex.IsMatch(prices.Text.Trim(),pattern)) { ÊÇÊý×Ö; } }
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