SelectCommand error:Validation(ASP.NET) 如果此属性值用引号括起来，则引号必须匹配

Posted 2023-05-08

【中文标题】SelectCommand error:Validation(ASP.NET) 如果此属性值用引号括起来，则引号必须匹配

【英文标题】：SelectCommand error:Validation(ASP.NET) If this attribute value is enclosed en quotation marks, the quotation marks must match

【发布时间】：2018-08-15 10:35:13

【问题描述】：

我在 sqlserver 中进行了此查询，当我放入我的项目时，第一行显示为绿色，标题中有该错误，第三行之后似乎不再在 SelectCommand 中，因为它是红色字母。我认为这是关于

<asp:SqlDataSource ID="ds_order" runat="server" CancelSelectOnNullParameter="false"
                        ConnectionString="myconnection"
                        SelectCommand=
                        "SELECT SUM(Total) as Totais, DateCreated, 
                         CASE 
                             WHEN DAY(DateCreated) <=15 THEN CAST(YEAR(DateCreated) AS VARCHAR) + '-' + CAST(MONTH(DateCreated) AS VARCHAR) + '-1' 
                             ELSE CAST(YEAR(DateCreated) AS VARCHAR) + '-' + CAST(MONTH(DateCreated) AS VARCHAR) + '-16' 
                         END AS Month              
                         FROM Orders
                         WHERE ReferenceID = @refid 
                         GROUP BY DateCreated" ProviderName="System.Data.SqlClient">
        <SelectParameters>
            <asp:ControlParameter ControlID="ddl_ref_type" Name="refid" />
        </SelectParameters>
        </asp:SqlDataSource>

【参考方案1】：

您需要将查询中的单引号和小于号替换为 XML 实体引用 " 和 <，以便 XML 格式正确：

<asp:SqlDataSource ID="ds_order" runat="server" CancelSelectOnNullParameter="false"
                        ConnectionString="myconnection"
                        SelectCommand=
                        "SELECT SUM(Total) as Totais, DateCreated, 
                         CASE 
                             WHEN DAY(DateCreated) &lt;=15 THEN CAST(YEAR(DateCreated) AS VARCHAR) + &quot;-&quot; + CAST(MONTH(DateCreated) AS VARCHAR) + &quot;-1&quot; 
                             ELSE CAST(YEAR(DateCreated) AS VARCHAR) + &quot;-&quot; + CAST(MONTH(DateCreated) AS VARCHAR) + &quot;-16&quot; 
                         END AS Month              
                         FROM Orders
                         WHERE ReferenceID = @refid 
                         GROUP BY DateCreated" ProviderName="System.Data.SqlClient">
        <SelectParameters>
            <asp:ControlParameter ControlID="ddl_ref_type" Name="refid" />
        </SelectParameters>
</asp:SqlDataSource>