Y2J

剛好做到此功能,想說紀錄一下

要不然改天忘了還要查

只能輸入數字與小數點

<asp:TextBox ID="txt_1" runat="server" onKeypress="return BlockNumber(event);"></asp:TextBox>

function BlockNumber(e)
{
    var key = window.event ? e.keyCode : e.which;
    var keychar = String.fromCharCode(key);
    reg = /[0-9]|\./;
    return reg.test(keychar);
}

 

只能輸入數字

<asp:TextBox ID="tb1" runat="server" onKeypress="if(event.keyCode < 48 || event.keyCode > 57) { event.returnValue = false; }">
</asp:TextBox>

只能輸入數字與Enter鍵

<asp:TextBox ID="tb2" runat="server" onKeypress="if(event.keyCode < 48 || event.keyCode > 57) if(event.keyCode != 13 ){ event.returnValue = false; }">
</asp:TextBox>

 

 

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