您可以通过javascript在html表中添加新行
<asp:Button ID="btnTest" runat="server" Text="Check" OnClientClick="javascript:return AddRow();"/>
<script type="text/javascript" >
var mytable = document.getElementById('mytableID');
function AddRow() {
var row = document.createElement('tr');
mytable.appendChild(row);
return false;
}
</script>
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