txtMarketSeq.Attributes.Add( "onkeydown" , "onlyNum();" );
txtMarketSeq.Attributes.Add( "onpaste" , "javascript:return !clipboardData.getData('text').match(/\\D/);" );
txtMarketSeq.Attributes.Add( "ondragenter" , "javascript:return false;");
function onlyNum()
{
if(!( (event.keyCode >= 48 && event.keyCode<=57 )
||( event.keyCode >= 96 && event.keyCode <= 105 )
|| ( event.keyCode == 8 ) //退格
|| ( event.keyCode == 46 ) //Del
|| ( event.keyCode == 27 ) //ESC
|| ( event.keyCode == 37 ) //左
|| ( event.keyCode == 39 ) //右
|| ( event.keyCode == 16 ) //shift
|| ( event.keyCode == 9 ) //Tab
)
)
//考虑小键盘上的数字键
event.returnValue=false;
}


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