小编Ali*_*med的帖子

我有以下内容SqlDataSource,我想将其转换为DataView并从中读取一列:

SELECT     
    dbo.Divisions.DivisionShortcut, 
    COUNT(DISTINCT dbo.UserQuiz.Username) AS [Number of Participants]
FROM         
    dbo.Divisions 
INNER JOIN
    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode 
INNER JOIN
    dbo.UserQuiz ON dbo.employee.Username = dbo.UserQuiz.Username 
INNER JOIN
    dbo.Quiz ON dbo.UserQuiz.QuizID = dbo.Quiz.QuizID
WHERE     
    (dbo.Quiz.QuizID = @QuizID)
GROUP BY 
    dbo.Divisions.DivisionShortcut

这SqlDataSource允许用户输入测验的编号,它将检索该测验中的参与者总数.我想将其转换SqlDataSource为a DataTable并从中读取一列.

那怎么办呢？

我正在开发一个Intranet Web应用程序.我现在正在使用用户档案,其中显示了关于员工个人信息,培训课程,公司简短测验以及他提交的想法和建议的四个表格.

我现在想要的是,如果员工没有任何建议,表格内的信息(例如您没有任何建议),而不是显示带有标题的表而不告诉用户他没有建议.那怎么办呢？

我的ASP.NET代码:

<asp:Repeater ID="Repeater4" runat="server" DataSourceID="SqlDataSource4">
                    <HeaderTemplate>
                        <div>
                        <table border="1">
                            <thead>
                                <tr>
                                    <td colspan="3">
                                        <center> <strong>Safety Suggestions</strong> </center>
                                    </td>
                                </tr>
                                <tr>
                                    <td>
                                        <center> <strong>Suggestion Title</strong> </center>
                                    </td>
                                    <td>
                                        <center> <strong>Description</strong> </center>
                                    </td>
                                </tr>
                            </thead>

                    </HeaderTemplate>
                    <ItemTemplate>
                        <tr>
                            <td>
                                <p>
                                    <%# Eval("Title") %>
                                </p>
                            </td>
                            <td>
                                <p>
                                    <%# Eval("Description") %>
                                </p>
                            </td>
                        </tr>
                    </ItemTemplate>
                    <FooterTemplate>
                        </table>
                        </div>
                    </FooterTemplate>
                </asp:Repeater>
                <asp:SqlDataSource ID="SqlDataSource4" runat="server" 
                    ConnectionString="<%$ ConnectionStrings:testConnectionString %>" SelectCommand="SELECT     dbo.SafetySuggestionsLog.Title, dbo.SafetySuggestionsLog.Description, dbo.SafetySuggestionsLog.Username
FROM         dbo.SafetySuggestionsLog INNER JOIN
                      dbo.employee ON dbo.SafetySuggestionsLog.Username = dbo.employee.Username …