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Getting no items in hashTable when editing

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This is a migrated thread and some comments may be shown as answers.
Jeremy
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Jeremy asked on 28 Jun 2010, 05:21 PM
Have 2 questions, but the error first.  When I select the edit button after changed the rule name, no values are put into my newValues hashtable.  So my edit never takes place.  Other question is I have 2 controls to help create 1 item for a column during edit. How would I combine the control values during the edit.  The two controls are a datepicker and a timeselector control.

Code Behind
   protected void ruleLV_NeedDataSource(object sender, RadListViewNeedDataSourceEventArgs e)
    {
        ruleLV.DataSource = dt;
    }

    protected void ruleLV_ItemCommand(object sender, RadListViewCommandEventArgs e)
    {
        if (e.CommandName == RadListView.CancelCommandName)
        {
            ruleLV.InsertItemPosition = RadListViewInsertItemPosition.None;
           // ruleLV.FindControl("Button1").Visible = true;
        }
        else if (e.CommandName == RadListView.UpdateCommandName)
        {
            RadListViewEditableItem item = (RadListViewEditableItem)e.ListViewItem;
            Hashtable newValues = new Hashtable();
            item.ExtractValues(newValues);

            DataTable newDT = dt;
            DataRow[] changedRows = newDT.Select("RuleID = " + e.ListViewItem.OwnerListView.DataKeyValues[e.ListViewItem.OwnerListView.EditIndexes[0]]["RuleID"].ToString());


            if (changedRows.Length != 1)
            {
                e.Canceled = true;
                return;
            }
            changedRows[0].BeginEdit();
            try
            {
                foreach (DictionaryEntry entry in newValues)
                {
                    changedRows[0][(string)entry.Key] = entry.Value;
                }
                changedRows[0].CancelEdit();
                this.ViewState["_lvds"] = newDT;
            }
            catch (Exception ex)
            {
                changedRows[0].CancelEdit();
                e.Canceled = true;
            }



        }
    }

MarkUp

 <telerik:RadListView ID="ruleLV" runat="server" AllowPaging="True"
                DataKeyNames="RuleID" ItemPlaceholderID="RulePlaceHolder"
                onitemcommand="ruleLV_ItemCommand" onneeddatasource="ruleLV_NeedDataSource"
                PageSize="5" Skin="Windows7">
                <LayoutTemplate>
                    <table ID="Table1" runat="server">
                        <tr>
                            <th ID="SummaryIdHdr" runat="server" width="150px">
                                Rule ID</th>
                            <th ID="BegTimeStampHdr" runat="server" width="200px">
                                Start Date/Time</th>
                            <th ID="EndTimeStampHdr" runat="server" width="200px">
                                End Date/Time</th>
                        </tr>
                        <tr ID="RulePlaceHolder" runat="server">
                        </tr>
                    </table>
                    <fieldset style="text-align: center; background-color: white;">
                    </fieldset>
                </LayoutTemplate>
                <EditItemTemplate>
                    <tr ID="rules" runat="server" bgcolor="white">
                        <td>
                            <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("SummaryID") %>'> </asp:TextBox>
                        </td>
                        <td>
                            <telerik:RadDatePicker ID="startDate" runat="server"
                                Calendar-ShowRowHeaders="false" SelectedDate='<%# Bind("BegTimeStamp") %>'>
                            </telerik:RadDatePicker>
                        </td>
                        <td>
                            <MKB:TimeSelector ID="time1" runat="server" Date='<%# Bind("BegTimeStamp") %>'
                                MinuteIncrement="1">
                            </MKB:TimeSelector>
                        </td>
                        <td>
                            <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("BegTimeStamp") %>'></asp:TextBox>
                        </td>
                        <td>
                            <asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("EndTimeStamp") %>'></asp:TextBox>
                        </td>
                        <td>
                            <asp:Button ID="Button1" runat="server" CommandName="Update" Text="Update"
                                Width="70px" />
                        </td>
                        <td>
                            <asp:Button ID="Button2" runat="server" CausesValidation="false"
                                CommandName="Cancel" Text="Cancel" Width="70px" />
                        </td>
                    </tr>
                </EditItemTemplate>
                <ItemTemplate>
                    <tr ID="rules0" runat="server" bgColor="White">
                        <td>
                            <%#Eval("SummaryID") %></td>
                        <td>
                            <%#Eval("BegTimeStamp") %></td>
                        <td>
                            <%#Eval("EndTimeStamp") %></td>
                        <td>
                            <asp:Button ID="Button1" runat="server" CommandName="Edit" Text="Edit" />
                        </td>
                    </tr>
                </ItemTemplate>
            </telerik:RadListView>
            <telerik:RadDataPager ID="RadDataPager1" runat="server" PagedControlID="ruleLV"
                PageSize="1" Width="550px">
                <Fields>
                    <telerik:RadDataPagerButtonField FieldType="FirstPrev" />
                    <telerik:RadDataPagerButtonField FieldType="Numeric" />
                    <telerik:RadDataPagerButtonField FieldType="NextLast" />
                    <telerik:RadDataPagerPageSizeField />
                </Fields>
            </telerik:RadDataPager>

1 Answer, 1 is accepted

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Rosen
Telerik team
answered on 29 Jun 2010, 12:21 PM
Hello Jeremy,

The reason behind values not been extracted is that unfortunately ASP.NET does not support two-way databinding when the expressions are nested inside a table with runat=server attribute. Same behavior can be observed with any templated control in such configuration.
Therefore you should consider either extract values manually, by directly accessing the inner controls, or convert the table to a non server control by removing the runat=server attributes from the appropriate elements.

Regards,
Rosen
the Telerik team
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