Question

我在显示数据时遇到问题。并非所有数据都在显示。单击名称后，将显示此人的数据。但是这里的问题是数据仅显示一个，但实际上在数据库中该人的数据有多个。谁能帮我如何显示所有数据？

我的数据库表

LanguageID    TechnicalProfile_ID    LanguageName    SpokenLevel   WrittenLevel
1              15                   English         10             10
2              15                   Mandarin        5              5
3              15                   Spanish         3              2
4              16                   English         10             9
5              17                   Tamil           10             10
6              17                   Tagalog         10             10

单击“技术档案ID” 15时我系统的输出，它仅显示“技术档案ID”的一个数据，而不显示3个数据。我该如何解决？

输出

Language      SpokenLevel     WrittenLevel

Spanish        3               2

我想要的输出如下：

Language      SpokenLevel     WrittenLevel

English       10              10
Mandarin      5               5
Spanish        3               2

我的代码如下：

ASPX

<div class="card-body">
    <asp:UpdatePanel ID="UpdatePanel1" runat="server" >
       <ContentTemplate>
          <asp:CheckBoxList class="list-group-item" ID="chkResourceName1" runat="server" AutoPostBack ="true" OnSelectedIndexChanged ="ResourceName_Click"></asp:CheckBoxList>
       </ContentTemplate>
       <Triggers>
          <asp:AsyncPostBackTrigger ControlID="chkResourceName1"/>
       </Triggers>
    </asp:UpdatePanel>
</div>
<div role="tabpanel" class="tab-pane" id="language">
  <asp:UpdatePanel ID="UpdatePanel15" runat="server">
      <ContentTemplate>
         <div class="form-horizontal" role="form">
           <div class="form-group">
             <div class="col-sm-4">
               <b>Language</b>
             </div>
             <div class="col-sm-2">
                <b>Written</b>
             </div>
             <div class="col-sm-2">
               <b>Spoken</b>
             </div>
            </div>
            <div class="form-group">
              <div class="col-sm-4">
                <asp:Label  ID="lblLanguageName" runat="server"></asp:Label>
              </div>
              <div class="col-sm-2">
                <asp:Label  ID="lblLanguageWritten" runat="server"></asp:Label>
              </div>
              <div class="col-sm-2">
                <asp:Label   ID="lblLanguageSpoken" runat="server"></asp:Label>
              </div>
            </div>
         </div>
     </ContentTemplate>
  </asp:UpdatePanel>
</div>

ASPX代码

Sub ResourceName_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
    Try 
      Dim LanguageName As String = vbNullString
      Dim WrittenRate As String = vbNullString
      Dim SpokenRate As String = vbNullString

      'To clear result
      lblLanguageName.Text = ""
      lblLanguageWritten.Text = ""
      lblLanguageSpoken.Text = ""

      attPage.SQLQuery = DC.Data_TechnicalResource("12", chkResourceName1.SelectedValue)
      DS = DA.GetSQLDataset(attPage.SQLQuery)
      If DS IsNot Nothing AndAlso DS.Tables(0).Rows.Count > 0 Then
         lblLanguageName.Text = DS.Tables(0).Rows(0)("LanguageName").ToString
         lblLanguageWritten.Text = DS.Tables(0).Rows(0)("WrittenLevel").ToString
         lblLanguageSpoken.Text = DS.Tables(0).Rows(0)("SpokenLevel").ToString

      End If
    End Try
End Sub

SQL查询

BEGIN
    SELECT *
    From tblLanguage
    where TechnicalProfile_ID = @Parameter1

END

Answer 1

If DS IsNot Nothing AndAlso DS.Tables(0).Rows.Count > 0 Then
dim dr as datarow
for each dr in DS.tables(0).rows
lblLanguageName.Text = dr("LanguageName").ToString
lblLanguageWritten.Text = dr("WrittenLevel").ToString
lblLanguageSpoken.Text = dr("SpokenLevel").ToString
Next

这是for循环的工作方式，但是 lbLanguageName 不在表中，我认为最后一个值只会被打印出来。使用适当的表以加载所有值。

我的数据仅显示一个，但数据应大于一个

1 个答案: