Question

I have an ASP Datalist with a nested GridView.
I am trying to display an ASP label for each list item where the gridview has more than 6 rows and keep it hidden for those list items where the gridview has < 6 rows.

Here is the datalist:

<asp:DataList runat="server" id="listResponses" DataKeyField="QuestionID" OnItemDataBound="listResponses_ItemDataBound" Width="100%">
                <ItemTemplate>
                    <div class="question_header">
                        <p><strong><asp:Label ID="lblOrder" runat="server" Text='<%# Container.ItemIndex  + 1 %>'></asp:Label>. <%# DataBinder.Eval(Container.DataItem, "QuestionText") %></strong></p>
                    </div> <!-- end question_header -->
                    <asp:GridView runat="server" ID="gridResponses" DataKeyNames="AnswerID" AutoGenerateColumns="False" CssClass="responses" AlternatingRowStyle-BackColor="#f3f4f8">
                        <Columns>
                            <asp:BoundField DataField="AnswerTitle" HeaderText="Answer Title" HeaderStyle-ForeColor="#717171" ItemStyle-Width="250px"></asp:BoundField>
                            <asp:BoundField DataField="Responses" HeaderText="Response Count" HeaderStyle-ForeColor="#717171" HeaderStyle-Width="100px" />
                            <asp:TemplateField>
                                <ItemTemplate>
                                    <div class="pbcontainer">
                                        <div class="progressbar"></div>
                                        <asp:HiddenField ID="hiddenValue" runat="server" Value='<%# Eval("Responses") %>' />
                                     </div>
                                </ItemTemplate>
                            </asp:TemplateField>
                        </Columns>
                    </asp:GridView>
                    <a><asp:Label runat="server" ID="lblShowResponses" Visible="false"></asp:Label></a>  
                </ItemTemplate>
            </asp:DataList>

The label I am trying to update is lblShowResponses.

The method to populate the datalist:

// populate datalist.
DT = GetData.GetQuestionNameDataList(qid);
listResponses.DataSource = DT;
listResponses.DataBind(); 

And the gridview is populated as follows:

    protected void listResponses_ItemDataBound(object sender, DataListItemEventArgs e)
    {
        GridView gridResponses = (GridView)e.Item.FindControl("gridResponses");
        BindGrid(gridResponses, (int)listResponses.DataKeys[e.Item.ItemIndex], DT.Rows[e.Item.ItemIndex][2].ToString());
    }

    // Get the question ID from the datalist and parse the parameters to BindGrid
    protected void listResponses_ItemDataBound(object sender, DataListItemEventArgs e)
    {
         GridView gridResponses = (GridView)e.Item.FindControl("gridResponses");
         BindGrid(gridResponses, (int)listResponses.DataKeys[e.Item.ItemIndex], DT.Rows[e.Item.ItemIndex][2].ToString());
    }

    private void BindGrid(GridView GridView, int questionId, string questionType)
    {
        // get the answerID and title for the current question.
        DataTable answersDataTable = new DataTable();
        answersDataTable = GetData.GetAnswerResponses(questionId);
        DataTable tempResponses = new DataTable();

        // checkbox question type - loop through each answer and obtain the number of responses.       
        for (int answer = 0; answer < answersDataTable.Rows.Count; answer++)
        {
            // populate tempaory datatable and replace DT with the response count.
            string answerID = answersDataTable.Rows[answer][0].ToString();
            tempResponses = GetData.getIndividualQuestionResponses(questionId, answerID);
            answersDataTable.Rows[answer][2] = tempResponses.Rows[0][0];
        }
        if (GridView.Rows.Count > 6)
        {
            for (int x = 6; x < GridView.Rows.Count; x++)
            {
                GridView.Rows[x].Visible = false;
            }

            // I want to populate the label here!!!!!!
       }

   }

How can I update/populate the label lblShowResponses when the gridview contains more than 6 rows?

Answer 1

Not sure if this would help you, pass the DataListItemEventArgs param “e” to the BindGrid method and in the location you want to populate the label and use

(e.Item.FindControl("lblShowResponses") as Label).Text = "Test";
(e.Item.FindControl("lblShowResponses") as Label).Visible = true;