GridView in ModalPopup window is empty RSS

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  dpreznik

  Member

  122 Points

  351 Posts

  GridView in ModalPopup window is empty

  Mar 01, 2010 02:16 PM|LINK

  Dear friends,

  
  

  I am using a modal popup extender to show a popup window. It it, I have a GridView with editable fields in each row. When I click Submit and handle the click event, the GridView's cells' texts are empty, though other controls, e.g. textboxes contain entered values. Could you please tell me why the GridView loses its values?

  Here is my code:

  
  

  <asp:ScriptManager ID="ScriptManager1" runat="server" ></asp:ScriptManager>
      
  
      <asp:Panel ID="pnlSubmitOffer" runat="server" CssClass="modalPopup" Style="display:none" Width="700px" >
          <asp:GridView ID="BookQuestSelectedGridView" runat="server" AllowSorting="True"
                  AutoGenerateColumns="False"
                  Width="100%" Height="306px" DataKeyNames="EAN" >
              <AlternatingRowStyle CssClass="alternatingrowstyle" />
              <Columns>
                  <asp:BoundField DataField="EAN" HeaderText="EAN" SortExpression="EAN" />
                  <asp:TemplateField HeaderText="Offer Date" SortExpression="OfferDate">
                      <ItemTemplate>
                          <asp:ImageButton runat="Server" ID="imgBtnOfferDate" ImageUrl="~/Images/Calendar_scheduleHS.png" AlternateText="Click here to display calendar" />
                          <asp:TextBox ID="OfferDate" runat="server" Text='<%# Bind("OfferDate","{0:M/d/yyyy}") %>'></asp:TextBox>
                          <ajaxToolkit:CalendarExtender ID="OfferDateCE" runat="server" TargetControlID="OfferDate" PopupButtonID="imgBtnOfferDate"/>
                          <asp:CompareValidator ID="OfferDateCompareValidator" runat="server" ControlToValidate="OfferDate" Display="Dynamic" ErrorMessage="Invalid OfferDate!" Text="*" Operator="DataTypeCheck" Type="Date"></asp:CompareValidator>
                          <ajaxToolkit:ValidatorCalloutExtender ID="OfferDateCompareValidator_ValidatorCalloutExtender" runat="server" Enabled="True" TargetControlID="OfferDateCompareValidator"></ajaxToolkit:ValidatorCalloutExtender>
                      </ItemTemplate>
                  </asp:TemplateField>
                  <asp:TemplateField HeaderText="Amount" SortExpression="Amount">
                      <ItemTemplate>
                          <asp:TextBox ID="Amount" runat="server" Text='<%#Bind("Amount") %>'></asp:TextBox>
                          <asp:CompareValidator ID="AmountCompareValidator" runat="server" ControlToValidate="Amount" Display="Dynamic" ErrorMessage="Amount has invalid currency value!" Text="*" Operator="DataTypeCheck" Type="Currency"></asp:CompareValidator>
                      </ItemTemplate>
                  </asp:TemplateField>
                  <asp:TemplateField HeaderText="Expiration Date" SortExpression="ExpirationDate">
                      <ItemTemplate>
                          <asp:ImageButton runat="Server" ID="imgBtnExpirationDate" ImageUrl="~/Images/Calendar_scheduleHS.png" AlternateText="Click here to display calendar" />
                          <asp:TextBox ID="ExpirationDate" runat="server" Text='<%# Bind("ExpirationDate","{0:M/d/yyyy}") %>'></asp:TextBox>
                          <ajaxToolkit:CalendarExtender ID="ExpirationDateCE" runat="server" TargetControlID="ExpirationDate" PopupButtonID="imgBtnExpirationDate"/>
                          <asp:CompareValidator ID="ExpirationDateCompareValidator" runat="server" ControlToValidate="ExpirationDate" Display="Dynamic" ErrorMessage="Invalid ExpirationDate!" Text="*" Operator="DataTypeCheck" Type="Date"></asp:CompareValidator>
                          <ajaxToolkit:ValidatorCalloutExtender ID="ExpirationDateCompareValidator_ValidatorCalloutExtender" runat="server" Enabled="True" TargetControlID="ExpirationDateCompareValidator"></ajaxToolkit:ValidatorCalloutExtender>
                      </ItemTemplate>
                  </asp:TemplateField>
              </Columns>
              <HeaderStyle CssClass="headerstyle" />
          </asp:GridView>
  
  
          <div align="center">
              <asp:Button ID="btnSubmitSubmitOffer" runat="server" Text="Submit" OnClick="btnSubmitSubmitOffer_Click" />
              <asp:Button ID="btnCancelSubmitOffer" runat="server" Text="Cancel" />
          </div>
      </asp:Panel>

  
  

      protected void btnSubmitSubmitOffer_Click(object sender, EventArgs e)
      {
           string commandText;
          string errorMessage = "Failed to enter cancellation reason for products with the following EAN: ";
          bool bAnyFailures = false;
  
          foreach (GridViewRow row in BookQuestSelectedGridView.Rows) // ALL CELLS ARE EMPTY
          {
              commandText = 
                  "INSERT INTO Offer (OfferDate, Amount, ExpirationDate, BookQuestID) VALUES('" +
                  Convert.ToDateTime(row.Cells[1].Text).ToString("yyyy:MM:dd hh:mm:ss") + "'," +
                  Convert.ToDouble(row.Cells[2].Text) + ",'" +
                  Convert.ToDateTime(row.Cells[3].Text).ToString("yyyy:MM:dd hh:mm:ss") +
                  "', (SELECT ID FROM BookQuest WHERE EAN = '" + row.Cells[0].Text + "'))";
  
              result = DBOperations.Execute(true, CommandType.Text, null, commandText);
              if (result != null && !Int32.TryParse(result.ToString(), out recordsUpdated)) // exception was thrown: if the returned value is not the number of updated records, it is an error message
              {
                  errorMessage += "<br>" + row.Cells[0].Text + " : " + result.ToString();
                  bAnyFailures = true;
              }
          }
          if (bAnyFailures)
          {
              SetWarningLabel(errorMessage);
          }
          Filter();
      }
  

  
  Thanks,

  Dmitriy
  

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• • Reply
  

  dpreznik

  Member

  122 Points

  351 Posts

  Re: GridView in ModalPopup window is empty

  Mar 01, 2010 04:36 PM|LINK

  Never mind, I got it. I had to use FindControl(), as I was dealing with templete fields.
  

  • Marked as answer by Zhi-Qiang Ni - MSFT on Mar 05, 2010 05:54 AM