我有以下的DetailsView,与几个绑定列,和SqlDataSource的用于填充的字段:网状形式的数据绑定绑定列
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataKeyNames="TICKET_ID"
DataSourceID="SqlDataSource1" HeaderText="Completed IT ticket information"
CellPadding="4" ForeColor="#333333" GridLines="None" HorizontalAlign="Center">
<Fields>
<asp:BoundField DataField="TICKET_ID" SortExpression="TICKET_ID" Visible="False" />
<asp:BoundField DataField="SUBMITTED_BY" SortExpression="SUBMITTED_BY" Visible="False" />
<asp:BoundField DataField="TICKET_TITLE" HeaderText="Ticket Description" SortExpression="TICKET_TITLE" />
<asp:BoundField DataField="SUBMITTED_BY" HeaderText="Submitted By" SortExpression="SUBMITTED_BY" />
<asp:BoundField DataField="SOLUTION_NOTES" HeaderText="Solution Notes" SortExpression="SOLUTION_NOTES" />
<asp:BoundField DataField="EMAIL_HISTORY" HeaderText="Email History" SortExpression="EMAIL_HISTORY" />
<asp:BoundField DataField="COMPLETED_BY" HeaderText="Completed By" SortExpression="COMPLETED_BY" />
<asp:BoundField DataField="COMPLETE_DATE" HeaderText="Completed Date" ReadOnly="True" SortExpression="COMPLETE_DATE" />
</Fields>
</asp:DetailsView>
</div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:TTPRODConnectionString %>"
SelectCommand="SELECT USR_ITFAC.TS_ID AS TICKET_ID, USR_ITFAC.TS_EC1_SUBMITTER AS SUBMITTED_BY, USR_ITFAC.TS_TITLE AS TICKET_TITLE, USR_ITFAC.TS_SOLUTION_NOTES AS SOLUTION_NOTES, USR_ITFAC.TS_EMAIL_HISTORY AS EMAIL_HISTORY, TS_USERS.TS_NAME AS COMPLETED_BY, DATEADD(HOUR,-8,USR_ITFAC.TS_CLOSEDATE) AS COMPLETE_DATE FROM USR_ITFAC INNER JOIN TS_USERS ON USR_ITFAC.TS_COMPLETED_BY = TS_USERS.TS_ID WHERE (USR_ITFAC.TS_ISSUEID = '00033')">
<SelectParameters>
<asp:QueryStringParameter Name="ts_id" QueryStringField="id" />
</SelectParameters>
</asp:SqlDataSource>
在查询“00033”的端
我硬编码的值,这是我知道在数据库中的记录的ID。我测试了查询,并且它按照预期返回了一个值,我想要做的是在用户按下按钮后在代码隐藏中获取BoundField的值。
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Try
''Use a Dictionary to store answers to questions that were marked poor or fair
Dim answers As New Dictionary(Of String, String)
''For Each test
For Each dv_row As DetailsViewRow In DetailsView1.Rows
''Print rows data to console
Next
Catch ex As Exception
lblWarn.Text = "<br /><b>Please answer all the questions on this survey</b><br />"
'Response.Write(ex)
End Try
End Sub
在上面,我做了测试,以获取价值,并在屏幕上打印出来,问题是,行数为0,我不知道这是为什么。我预计行数为8,调试时我注意到字段数为8,但我不知道如何从字段中获取值。我认为获取行数据的方式类似于:
Dim rowText As String = DetailsView1.Rows(0).Cells(1).Text
但是,当我尝试获取Null异常。任何见解都会被赞赏。
这很奇怪;我只是设置了你的代码,但绑定了一个SqlDataSource以外的东西。我能够从DetailsView1.Rows(0).Cells(1)中获取文本。这让我想知道是否在您的代码中调用了任何DataBind()调用以导致过早重新绑定。 – kbrimington 2010-08-23 22:12:57
奇怪的是,我在代码隐藏的Page_Load函数中调用了数据绑定。但即使我不这样做,我仍然会得到与上面相同的错误。 – kingrichard2005 2010-08-24 15:27:35