Question

我正在对一个旧的Web程序进行一些修改，并且在测试过程中碰到了上面的警告消息。

以下是参考代码的一部分：

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="PIB_ModelMast.aspx.vb" Inherits="NetApps.PIB_MODELMAST" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
    <title>PIB_MODELMAST</title>
    <meta content="True" name="vs_showGrid">
    <meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
    <meta content="Visual Basic .NET 7.1" name="CODE_LANGUAGE">
    <meta content="JavaScript" name="vs_defaultClientScript">
    <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
    <script language="javascript">
function confirm_delete() 
    { 
    if (confirm("Do you want to delete record?")==true) 
    return true; 
    else 
    return false; 
    }

    function confirm_Edit(id) {
        var theForm = document.forms[0]
        traschURL="PIB_MODELADD.aspx?ID=" + id
        traschWin = launchCenter(traschURL, 'traschWin', 650, 900)
        return false;
    }

    </script>

</HEAD>
<body MS_POSITIONING="GridLayout">
    <form id="Form1" method="post" runat="server">
        <TABLE id="Table1" style="Z-INDEX: 101; LEFT: 8px; POSITION: absolute; TOP: 8px" borderColor="aqua"
            height="50" cellSpacing="0" cellPadding="0" width="100%" bgColor="darkblue" border="1">
            <TR>
                <TD>
                    <center><FONT face="Arial" color="#ffffff" size="5"><STRONG>MODEL AND LINE MASTER 
                                MAINTENANCE</STRONG></FONT></center>
                </TD>
            </TR>
        </TABLE>
        <TABLE id="Table2" style="Z-INDEX: 102; LEFT: 8px; POSITION: absolute; TOP: 80px; HEIGHT: 56px"
            cellSpacing="0" cellPadding="0" width="100%" bgColor="lightgrey" border="0">
            <TR>
                <TD style="WIDTH: 121px"><STRONG><FONT face="Arial"></FONT></STRONG></TD>
                <TD style="WIDTH: 125px"><FONT face="Arial"><STRONG>MODEL</STRONG></FONT></TD>
                <TD style="WIDTH: 664px"><asp:textbox id="ModelText" runat="server" Height="27px" Width="469px" Font-Size="Small"></asp:textbox></TD>
                <TD style="WIDTH: 209px"><asp:button id="Button1" runat="server" Width="95px" Text="Filter" Font-Bold="True" Height="35px"></asp:button></TD>
                <TD style="WIDTH: 74px"><asp:button id="Button2" runat="server" Width="96px" Text="Add New" Font-Bold="True" Height="35px"></asp:button></TD>
                <TD style="WIDTH: 138px"></TD>
            </TR>
        </TABLE>
        <asp:datagrid id="DataGrid1" style="Z-INDEX: 103; LEFT: 16px; POSITION: absolute; TOP: 168px"
            runat="server" Width="100%" GridLines="Horizontal" BorderColor="Aqua" OnDeleteCommand="DataGrid1_DeleteCommand"
            DataKeyField="ID" CellPadding="5" AutoGenerateColumns="False" ShowFooter="True" BackColor="PaleTurquoise">
            <FooterStyle BackColor="#000099"></FooterStyle>
            <SelectedItemStyle Font-Bold="True" ForeColor="MidnightBlue"></SelectedItemStyle>
            <EditItemStyle BackColor="PaleTurquoise"></EditItemStyle>
            <AlternatingItemStyle Font-Size="X-Small" Font-Names="Arial" BackColor="Wheat"></AlternatingItemStyle>
            <ItemStyle Font-Size="X-Small" Font-Names="Arial"></ItemStyle>
            <HeaderStyle Font-Size="X-Small" Font-Names="Arial" Font-Bold="True" ForeColor="White" BackColor="#000099"></HeaderStyle>
            <Columns>
                <asp:BoundColumn Visible="False" DataField="ID" SortExpression="ID" HeaderText="Id"></asp:BoundColumn>
                <asp:BoundColumn DataField="Model" SortExpression="Model" HeaderText="Model">
                    <HeaderStyle Width="200px"></HeaderStyle>
                </asp:BoundColumn>
                <asp:BoundColumn DataField="Line" SortExpression="Line" HeaderText="Line">
                    <HeaderStyle Width="200px"></HeaderStyle>
                </asp:BoundColumn>
               <asp:BoundColumn DataField="Process" SortExpression="Process" HeaderText="Process">
                    <HeaderStyle Width="200px"></HeaderStyle>
                </asp:BoundColumn>
                <asp:BoundColumn DataField="PZone" SortExpression="PZone" HeaderText="PZone">
                    <HeaderStyle Width="200px"></HeaderStyle>
                </asp:BoundColumn>
                <asp:ButtonColumn Text="Edit" CommandName="Edit">
                    <HeaderStyle Width="100px"></HeaderStyle>
                </asp:ButtonColumn>
                <asp:ButtonColumn Text="Delete" CommandName="Delete">
                    <HeaderStyle Width="100px"></HeaderStyle>
                </asp:ButtonColumn>
            </Columns>
        </asp:datagrid></form>
</body>

其余代码用于构建GridView。 GridView将有一列，每行都有删除按钮和编辑按钮。单击任何行上的编辑将导致出现此警告消息。

JavaScript runtime error: 'launchCenter' is undefined

“ launchCenter”出现在代码的Confirm_Edit函数中，我试图将其注释掉，因为我最初的想法是由于未定义，因此它是未使用的代码。但这最终导致GridView中的“编辑”按钮停止工作。

此外，即使我收到警告消息，如果单击“继续”，程序也将继续正常运行，并且可以在GridView中编辑并保存更改。实时版本也是如此。未检测到问题。

现在，我只想修复代码，以使消息不会出现。有什么帮助吗？如有必要，我会添加更多代码。

JavaScript运行时错误：“ launchCenter”未定义

0 个答案: