在GridView中增加LinkButton，出现错误：EnableEventValidation="false"

错误信息：

Invalid postback or callback argument.  Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page.  For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them.  If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

代码：

<asp:GridView CssClass="GridView_Content" HeaderStyle-BackColor="#BBBBBB" 
                                    HeaderStyle-Font-Size="14px" ID="grvUserACL" AllowSorting="True" runat="server" 
                                        AutoGenerateColumns="False" Width="100%"
                                        onrowdatabound="grvUserACL_RowDataBound" OnRowCommand="grvUserACL_RowCommand" >
                                    <Columns>                                        
                                        <asp:TemplateField HeaderText="Server Set">                                            
                                            <ItemTemplate>
                                                <asp:Label runat="server" Text='<%# Eval("SetID") %>' ID="SetID"></asp:Label>
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                         
                                        <asp:TemplateField HeaderText="UserSingleClick" ItemStyle-CssClass="hiddencol" HeaderStyle-CssClass="hiddencol">                                            
                                            <ItemTemplate>
                                                <asp:LinkButton ID="UserSingleClick" CommandName="UserSingleClick" Text="UserSingleClick" runat="server"></asp:LinkButton>
                                            </ItemTemplate>
                                        </asp:TemplateField>                                                                                                             
                                    </Columns>
                                    <EmptyDataTemplate>
                                        No data
                                    </EmptyDataTemplate>
                                    <HeaderStyle BackColor="#BBBBBB" Font-Size="14px"></HeaderStyle>
                                </asp:GridView>

protected void grvUserACL_RowDataBound(object sender, GridViewRowEventArgs e)
        {           
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                e.Row.Attributes.Add("onmouseover", "if(this.style.backgroundColor!='peachpuff'){this.style.backgroundColor='#Efefef'}");//当鼠标停留时更改背景色
                e.Row.Attributes.Add("onmouseout", "if(this.style.backgroundColor!='peachpuff'){this.style.backgroundColor='#e4ecf2'}");//当鼠标移开时还原背景色
                //e.Row.Attributes.Add("onclick", "selectSubGVIndex(this," + e.Row.RowIndex.ToString() + ")");

                // 从第一个单元格内获得LinkButton控件
                LinkButton _singleClickButton = (LinkButton)e.Row.Cells[9].FindControl("UserSingleClick");
                if (_singleClickButton != null)
                {
　　　　　　　　　　　　//增加以下代码解决问题，EnableEventValidation="false"
                    _singleClickButton.CommandArgument = e.Row.RowIndex.ToString();
                }
                // 返回一个字符串，表示对包含目标控件的 ID 和事件参数的回发函数的 JavaScript 调用

                string _jsSingle = ClientScript.GetPostBackClientHyperlink(_singleClickButton, "");

               
                _jsSingle = "selectSubGVIndex(this," + e.Row.RowIndex.ToString() + ");" + _jsSingle;
                e.Row.Attributes["onclick"] = _jsSingle;
            }           
        }

解决方法：
需给Linkbutton的属性CommandArgument定义一个不同的值。
_singleClickButton.CommandArgument = e.Row.RowIndex.ToString();