Why isn't my GridView updating? - sql

Question

I'm trying to update the 'question' field when I hit the 'update' button for a specific row. I am able to change the text when I hit the 'edit' button, but when I hit the 'update' button it reverts back to its original value. Nothing is changed in the database either.
Here is my markup:
<div class="divGrid" style="margin: 0 auto; width: 70%;">
<asp:GridView ID="QuestionsGridView" CssClass="gridView" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" Width="100%" CellPadding="4" ForeColor="#333333">
<Columns>
<asp:BoundField DataField="QUESTION_NUMBER" ReadOnly="true" HeaderText="Question Number" SortExpression="QUESTION_NUMBER" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center" />
<asp:TemplateField HeaderText="Question" SortExpression="QUESTION" HeaderStyle-HorizontalAlign="Center">
<EditItemTemplate>
<asp:TextBox ID="EditQuestionBox" runat="server" Height="50px" Text='<%# Bind("QUESTION") %>' TextMode="MultiLine" Width="99%" CssClass="multilineTBox" Columns="1" Rows="2"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("QUESTION") %>'></asp:Label>
</ItemTemplate>
<ControlStyle Width="99%" />
</asp:TemplateField>
<asp:BoundField DataField="CAT_NAME" ReadOnly="true" HeaderText="Category" SortExpression="CAT_NAME" HeaderStyle-HorizontalAlign="Center" />
<asp:BoundField DataField="QUES_ORDER" ReadOnly="true" HeaderText="Order in Category" SortExpression="QUES_ORDER" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center" />
<asp:CommandField CausesValidation="False" HeaderText="Edit" ShowEditButton="True" ControlStyle-Width="4em" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center" />
</Columns>
<EditRowStyle BackColor="#2461BF" />
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#a0a0a0" Font-Bold="True" ForeColor="White" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px" HorizontalAlign="Center" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#ffffff" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#F5F7FB" />
<SortedAscendingHeaderStyle BackColor="#6D95E1" />
<SortedDescendingCellStyle BackColor="#E9EBEF" />
<SortedDescendingHeaderStyle BackColor="#4870BE" />
</asp:GridView>
</div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Corp_TaxConnectionString %>"
SelectCommand="SELECT tq.id, tq.question, tq.ques_order, tc.cat_name, tq.question_number FROM t01_tax_questions AS tq INNER JOIN t01_tax_categories AS tc ON tq.category = tc.cat_order ORDER BY tq.question_number"
UpdateCommand="UPDATE t01_tax_questions SET question = #question WHERE question_number = #question_number">
<UpdateParameters>
<asp:Parameter Name="question_number" Type="Int32" />
<asp:Parameter Name="question" Type="String" />
<asp:Parameter Name="id" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
And the table:
SQLServer Table
EDIT:
After looking, in my EditItemTemplate, I bind the question to the textbox. Is it possible that after I click the update button that the original question is databound to the textbox again before it tries to update? If this is the case, how would I get around that?

Answer 1

After looking further into it, I realized I had forgotten the apparently very important "DataKeyNames" attribute in my GridView tag. I feel really dumb. Here is the new working code.
<div class="divGrid" style="margin: 0 auto; width: 70%;">
<asp:GridView ID="QuestionsGridView" CssClass="gridView" runat="server" AutoGenerateColumns="False" Width="100%" DataKeyNames="ID, QUESTION_NUMBER" DataSourceID="SqlDataSource1">
<Columns>
<asp:BoundField DataField="question_number" HeaderText="Question Number" SortExpression="question_number" ReadOnly="True" ItemStyle-HorizontalAlign="Center" />
<asp:BoundField DataField="question" HeaderText="Question" SortExpression="question" >
<ControlStyle Width="100%" Height="80%" />
</asp:BoundField>
<asp:BoundField DataField="cat_name" HeaderText="Category" SortExpression="cat_name" ItemStyle-HorizontalAlign="Center">
<ControlStyle Height="80%" />
</asp:BoundField>
<asp:BoundField DataField="ques_order" HeaderText="Question Order" SortExpression="ques_order" ReadOnly="True" ItemStyle-HorizontalAlign="Center" />
<asp:CommandField HeaderText="Edit" ShowEditButton="True" CausesValidation="False" HeaderStyle-Width="4%" ItemStyle-HorizontalAlign="Center"/>
<asp:CommandField HeaderText="Delete" ShowDeleteButton="True" CausesValidation="False" HeaderStyle-Width ="4%" ItemStyle-HorizontalAlign="Center" />
</Columns>
<EditRowStyle BackColor="Yellow" Width="100%" />
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#a0a0a0" Font-Bold="True" ForeColor="White" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px" HorizontalAlign="Center" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#ffffff" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#F5F7FB" />
<SortedAscendingHeaderStyle BackColor="#6D95E1" />
<SortedDescendingCellStyle BackColor="#E9EBEF" />
<SortedDescendingHeaderStyle BackColor="#4870BE" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Corp_TaxConnectionString %>" SelectCommand="SELECT
tq.id, tq.question_number, tq.question, tc.cat_name, tq.ques_order
FROM
t01_tax_questions AS tq
INNER JOIN
t01_tax_categories AS tc
ON
tq.category = tc.cat_order
ORDER BY tq.question_number"
DeleteCommand="DELETE
FROM
t01_tax_questions
WHERE
question_number = #question_number"
UpdateCommand="UPDATE
t01_tax_questions
SET
question = #question
WHERE
id = #id">
<DeleteParameters>
<asp:Parameter Name="#question_number" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="#question"/>
<asp:Parameter Name="#id" />
</UpdateParameters>
</asp:SqlDataSource>
It is all explained in this MSDN Documentation
Thank you to all who looked at this and tried.