请告诉我什么是中庸"checkAll(本)","Check_Click(本)",在给定的上下文?试图从一个GridView选中复选框转让行。得到错误N给定的条件。 <asp:GridView ID="gvAll" runat="server"
AutoGenerateColumns = "false" Font-Names = "Arial"
Font-Size = "11pt" AlternatingRowStyle-BackColor = "#C2D69B"
HeaderStyle-BackColor = "green" AllowPaging ="true"
OnPageIndexChanging = "OnPaging" PageSize = "10" >
<Columns>
<asp:TemplateField>
<HeaderTemplate>
<asp:CheckBox ID="chkAll" runat="server" onclick = "checkAll(this);"
AutoPostBack = "true" OnCheckedChanged = "CheckBox_CheckChanged"/>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="chk" runat="server" onclick = "Check_Click(this)"
AutoPostBack = "true" OnCheckedChanged = "CheckBox_CheckChanged" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField = "CustomerID" HeaderText = "Customer ID"
HtmlEncode = "false" />
<asp:BoundField DataField = "ContactName" HeaderText = "Contact Name"
HtmlEncode = "false" />
<asp:BoundField DataField = "City" HeaderText = "City"
HtmlEncode = "false" />
</Columns>
<AlternatingRowStyle BackColor="#C2D69B" />
</asp:GridView>