选项1:
在Grid内这样的事情怎么样:

OPTION 1:
How about something like this inside the Grid:

<EditItemTemplate>
   <asp:TextBox id="txtReceived"></asp:TextBox>
   <asp:customvalidator id="cvalReceived" runat="server" ClientValidationFunction="ValidateReceivedAmounts" ControlToValidate="txtReceived">
   </asp:customvalidator>
</EditItemTemplate>

选项2:
使用Javascript验证.使用属性将Javascript方法添加到客户端onKeyDown.现在，在JavaScript中，检查输入的值，如果不是整数则显示错误，或者只是取消按下的键.

OPTION 2:
Use Javascript validation. Add a Javascript method to the client side onKeyDown using attributes. Now, in JavaScript, check the value entered and show error if not integer or just cancel out the key pressed.