GridView SelectCommand 在运行时缺少 WHERE答案

【问题标题】：GridView SelectCommand missing WHERE at runtimeGridView SelectCommand 在运行时缺少 WHERE
【发布时间】：2012-02-10 16:37:56
【问题描述】：

我有一个 GridView。如果我将代码中的 SelectCommand 复制并粘贴到 SQL Server Management Studio 中，我的代码就可以工作。它执行得很好。

如果我运行该页面并单击任何行的编辑，我会收到错误：

“关键字 'IS' 附近的语法不正确。”

我尝试查看使用 SQL Server Profiler 发生了什么。下面是 SelectCommand 的样子以及 SQL 接收的内容...

来自supplies.ascx 的SelectCommand

SELECT some stuff FROM here WHERE (this IS NULL) and (that=1) ORDER BY this DESC

SQL Server Profiler 报告

SELECT some stuff FROM here (this IS NULL) and (that=1) ORDER BY this DESC

我没有在这里放任何代码，因为我不确定什么是相关的，并且不想用不必要的代码行加载帖子。请让我知道您希望得到什么帮助。

请求的代码如下。我没有将 GridView 中的所有内容都放入......它非常大。如果需要，我可以更新。

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="fldSupReqID"
                DataSourceID="SqlDataSource1" 
                EmptyDataText="There are no data records to display." AllowSorting="True" 
                CellPadding="4" ForeColor="#333333" Font-Size="10px">
                <RowStyle BackColor="#EFF3FB" />

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:myConnectionString %>"
                DeleteCommand="DELETE FROM [tblSupplyRequests] WHERE [fldSupReqID] = @fldSupReqID"
                InsertCommand="INSERT INTO [tblSupplyRequests] ([fldManufacturerID], [fldItemID], [fldFeeTypeID], [fldRequestDate], [fldStamp], [fldAddedByUser], [fldBID]) VALUES (@fldManufacturerID, @fldItemID, @fldFeeTypeID, @fldRequestDate, @fldStamp, @fldAddedByUser, @fldBID)"       




                ProviderName="<%$ ConnectionStrings:myConnectionString.ProviderName %>" SelectCommand="SELECT tblSupplyRequests.fldSupReqID, tblSupplyRequests.fldOrderToShipDate, tblSupplyRequests.fldBID AS BID, tblMerchantIDs.fldMerchantID AS MerchantID, salescontactinfo.sname_of_business AS [Merchant Name], salescontactinfo.scontactname1 AS Contact, salescontactinfo.scontactn1phone1 AS Phone, tblSupplyRequests.fldRequestDate, tblSupplyRequests.fldAddedByUser AS RequestedBy, INVtblManufacturers.fldManufacturerName AS [Term Manuf], INVtblInventoryItems_1.fldItemName AS [Term Model], INVtblInventoryTypes.fldInventoryTypename AS [Item Type], tblSupplyRequests.fldNumItemsRequested AS [Num Items], tblSupplyRequests.fldPaperItemID, tblSupplyRequests.fldPerItemCost, INVtblInventoryItems.fldMiscDesc, tblSupplyRequests.fldPersonCalling, tblSupplyRequests.fldTitlePersonCalling, tblSupplyRequests.fldNotes, salescontactinfo.sstate, tblSupplyRequests.fldManufacturerID, tblSupplyRequests.fldItemID, tblSupplyRequests.fldStamp, tblSupplyRequests.fldOrderToShipDate AS Expr1, tblSupplyRequests.fldOrderToShipBy FROM INVtblInventoryItems INNER JOIN tblSupplyRequests INNER JOIN salescontactinfo ON tblSupplyRequests.fldBID = salescontactinfo.sbusinessid LEFT OUTER JOIN tblMerchantIDs ON salescontactinfo.sbusinessid = tblMerchantIDs.fldBID LEFT OUTER JOIN INVtblManufacturers ON tblSupplyRequests.fldManufacturerID = INVtblManufacturers.fldManufacturerID ON INVtblInventoryItems.fldItemID = tblSupplyRequests.fldPaperItemID LEFT OUTER JOIN INVtblInventoryTypes ON tblSupplyRequests.fldInventoryTypeID = INVtblInventoryTypes.fldInventoryTypeID LEFT OUTER JOIN INVtblInventoryItems AS INVtblInventoryItems_1 ON tblSupplyRequests.fldItemID = INVtblInventoryItems_1.fldItemID WHERE (tblSupplyRequests.fldOrderToShipDate IS NULL) AND (tblMerchantIDs.fldMIDStatusID=1) ORDER BY tblSupplyRequests.fldRequestDate DESC"                   




                UpdateCommand="UPDATE tblSupplyRequests SET fldOrderToShipDate=@fldOrderToShipDate, fldNotes = @fldNotes, fldTitlePersonCalling = @fldTitlePersonCalling, fldPersonCalling = @fldPersonCalling, fldRequestDate = @fldRequestDate WHERE (fldSupReqID = @fldSupReqID)">
                <DeleteParameters>
                    <asp:Parameter Name="fldSupReqID" Type="Int32" />
                </DeleteParameters>
                <InsertParameters>
                    <asp:Parameter Name="fldManufacturerID" Type="Int32" />
                    <asp:Parameter Name="fldItemID" Type="Int32" />
                    <asp:Parameter Name="fldFeeTypeID" Type="Int32" />
                    <asp:Parameter Name="fldRequestDate" Type="DateTime" />
                    <asp:Parameter Name="fldStamp" Type="DateTime" />
                    <asp:Parameter Name="fldAddedByUser" Type="String" />
                    <asp:Parameter Name="fldBID" Type="Int32" />
                </InsertParameters>
                <UpdateParameters>
                    <asp:Parameter Name="fldOrderToShipDate" Type="DateTime" />
                    <asp:Parameter Name="fldNotes" Type="String" />
                    <asp:Parameter Name="fldTitlePersonCalling" Type="String" />
                    <asp:Parameter Name="fldPersonCalling" Type="String" />
                    <asp:Parameter Name="fldRequestDate" Type="DateTime" />
                    <asp:Parameter Name="fldSupReqID" Type="Int32" />
                </UpdateParameters>
            </asp:SqlDataSource>

这就是 SQL Server Profiler 捕获的内容...

SELECT tblSupplyRequests.fldSupReqID, tblSupplyRequests.fldOrderToShipDate, tblSupplyRequests.fldBID AS BID, tblMerchantIDs.fldMerchantID AS MerchantID, salescontactinfo.sname_of_business AS [Merchant Name], salescontactinfo.scontactname1 AS Contact, salescontactinfo.scontactn1phone1 AS Phone, tblSupplyRequests.fldRequestDate, tblSupplyRequests.fldAddedByUser AS RequestedBy, INVtblManufacturers.fldManufacturerName AS [Term Manuf], INVtblInventoryItems_1.fldItemName AS [Term Model], INVtblInventoryTypes.fldInventoryTypename AS [Item Type], tblSupplyRequests.fldNumItemsRequested AS [Num Items], tblSupplyRequests.fldPaperItemID, tblSupplyRequests.fldPerItemCost, INVtblInventoryItems.fldMiscDesc, tblSupplyRequests.fldPersonCalling, tblSupplyRequests.fldTitlePersonCalling, tblSupplyRequests.fldNotes, salescontactinfo.sstate, tblSupplyRequests.fldManufacturerID, tblSupplyRequests.fldItemID, tblSupplyRequests.fldStamp, tblSupplyRequests.fldOrderToShipDate AS Expr1, tblSupplyRequests.fldOrderToShipBy FROM INVtblInventoryItems INNER JOIN tblSupplyRequests INNER JOIN salescontactinfo ON tblSupplyRequests.fldBID = salescontactinfo.sbusinessid LEFT OUTER JOIN tblMerchantIDs ON salescontactinfo.sbusinessid = tblMerchantIDs.fldBID LEFT OUTER JOIN INVtblManufacturers ON tblSupplyRequests.fldManufacturerID = INVtblManufacturers.fldManufacturerID ON INVtblInventoryItems.fldItemID = tblSupplyRequests.fldPaperItemID LEFT OUTER JOIN INVtblInventoryTypes ON tblSupplyRequests.fldInventoryTypeID = INVtblInventoryTypes.fldInventoryTypeID LEFT OUTER JOIN INVtblInventoryItems AS INVtblInventoryItems_1 ON tblSupplyRequests.fldItemID = INVtblInventoryItems_1.fldItemID  (tblSupplyRequests.fldOrderToShipDate IS NULL) AND (tblMerchantIDs.fldMIDStatusID=1) ORDER BY tblSupplyRequests.fldRequestDate DESC

【问题讨论】：

你能发布一些代码吗？如何将数据绑定到gridview、datasource、html？
这可能与您的实际 SQL 查询非常相关（就像您使用保留字或 some-such-tom-foolery）。可以发一下吗？
WHERE 在您的选择语句中缺失

标签： asp.net sql vb.net gridview

【解决方案1】：

我不想这么说，但这可能只是因为 ASP.NET 错误地解析了查询，因为所有嵌套的 INNER JOINs 都在一行之前。我想知道格式化你的 SQL 是否有帮助？ neatly formatting your SQL statements在线有一个非常酷的工具。

这是您的SQLDataSource 的格式化版本：

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:myConnectionString %>"
    DeleteCommand=" DELETE FROM [tblSupplyRequests] 
                    WHERE  [fldSupReqID] = @fldSupReqID"
    InsertCommand=" INSERT INTO [tblSupplyRequests] ([fldManufacturerID],[fldItemID],[fldFeeTypeID],[fldRequestDate],[fldStamp],[fldAddedByUser],[fldBID]) 
                    VALUES (@fldManufacturerID,@fldItemID,@fldFeeTypeID,@fldRequestDate,@fldStamp,@fldAddedByUser,@fldBID)"       
    ProviderName="<%$ ConnectionStrings:myConnectionString.ProviderName %>" 
    SelectCommand=" SELECT tblsupplyrequests.fldsupreqid, 
                           tblsupplyrequests.fldordertoshipdate, 
                           tblsupplyrequests.fldbid                  AS bid, 
                           tblmerchantids.fldmerchantid              AS merchantid, 
                           salescontactinfo.sname_of_business        AS [Merchant Name], 
                           salescontactinfo.scontactname1            AS contact, 
                           salescontactinfo.scontactn1phone1         AS phone, 
                           tblsupplyrequests.fldrequestdate, 
                           tblsupplyrequests.fldaddedbyuser          AS requestedby, 
                           invtblmanufacturers.fldmanufacturername   AS [Term Manuf], 
                           invtblinventoryitems_1.flditemname        AS [Term Model], 
                           invtblinventorytypes.fldinventorytypename AS [Item Type], 
                           tblsupplyrequests.fldnumitemsrequested    AS [Num Items], 
                           tblsupplyrequests.fldpaperitemid, 
                           tblsupplyrequests.fldperitemcost, 
                           invtblinventoryitems.fldmiscdesc, 
                           tblsupplyrequests.fldpersoncalling, 
                           tblsupplyrequests.fldtitlepersoncalling, 
                           tblsupplyrequests.fldnotes, 
                           salescontactinfo.sstate, 
                           tblsupplyrequests.fldmanufacturerid, 
                           tblsupplyrequests.flditemid, 
                           tblsupplyrequests.fldstamp, 
                           tblsupplyrequests.fldordertoshipdate      AS expr1, 
                           tblsupplyrequests.fldordertoshipby 
                    FROM   invtblinventoryitems 
                           INNER JOIN tblsupplyrequests 
                                      INNER JOIN salescontactinfo 
                                        ON tblsupplyrequests.fldbid = salescontactinfo.sbusinessid 
                                      LEFT OUTER JOIN tblmerchantids 
                                        ON salescontactinfo.sbusinessid = tblmerchantids.fldbid 
                                      LEFT OUTER JOIN invtblmanufacturers 
                                        ON tblsupplyrequests.fldmanufacturerid = invtblmanufacturers.fldmanufacturerid 
                             ON invtblinventoryitems.flditemid = tblsupplyrequests.fldpaperitemid 
                           LEFT OUTER JOIN invtblinventorytypes 
                             ON tblsupplyrequests.fldinventorytypeid = invtblinventorytypes.fldinventorytypeid 
                           LEFT OUTER JOIN invtblinventoryitems AS invtblinventoryitems_1 
                             ON tblsupplyrequests.flditemid = invtblinventoryitems_1.flditemid 
                    WHERE  ( tblsupplyrequests.fldordertoshipdate IS NULL ) 
                           AND ( tblmerchantids.fldmidstatusid = 1 ) 
                    ORDER  BY tblsupplyrequests.fldrequestdate DESC"
    UpdateCommand=" UPDATE tblsupplyrequests 
                    SET    fldordertoshipdate = @fldOrderToShipDate, 
                           fldnotes = @fldNotes, 
                           fldtitlepersoncalling = @fldTitlePersonCalling, 
                           fldpersoncalling = @fldPersonCalling, 
                           fldrequestdate = @fldRequestDate 
                    WHERE  ( fldsupreqid = @fldSupReqID )" >
    <DeleteParameters>
        <asp:Parameter Name="fldSupReqID" Type="Int32" />
    </DeleteParameters>
    <InsertParameters>
        <asp:Parameter Name="fldManufacturerID" Type="Int32" />
        <asp:Parameter Name="fldItemID" Type="Int32" />
        <asp:Parameter Name="fldFeeTypeID" Type="Int32" />
        <asp:Parameter Name="fldRequestDate" Type="DateTime" />
        <asp:Parameter Name="fldStamp" Type="DateTime" />
        <asp:Parameter Name="fldAddedByUser" Type="String" />
        <asp:Parameter Name="fldBID" Type="Int32" />
    </InsertParameters>
    <UpdateParameters>
        <asp:Parameter Name="fldOrderToShipDate" Type="DateTime" />
        <asp:Parameter Name="fldNotes" Type="String" />
        <asp:Parameter Name="fldTitlePersonCalling" Type="String" />
        <asp:Parameter Name="fldPersonCalling" Type="String" />
        <asp:Parameter Name="fldRequestDate" Type="DateTime" />
        <asp:Parameter Name="fldSupReqID" Type="Int32" />
    </UpdateParameters>
</asp:SqlDataSource>

注意：如果您在 SQLDataSource 中的查询变得如此复杂，您可能需要考虑将此逻辑移动到类/数据访问层中以便将来进行维护。话虽如此，我明白有时你会暂时被你所拥有的东西所困扰=）祝你好运！

【讨论】：