This is a migrated thread and some comments may be shown as answers.

Batch Edit InPlace , Update All, ExtractValuesFromItem and SavedOldValues giving null

3 Answers 289 Views

Grid

This is a migrated thread and some comments may be shown as answers.

Jonathan asked on 22 Feb 2012, 09:03 PM

I am working on a grid that puts all the rows (about 8 usually) into edit mode for batch updates.
I have a command button in the command header of the grid to save all the data.

I was trying to use the ExtractValuesFromItem and SavedOldValues collections to perform the update and neither collection has any data. All the entries are there but are all NULL. I don't understand why. I have used this method before in a slightly different situation.
The one thing I can see that is different is in the current grid that this isn't working for I have defined an ItemTemplate and an EditItemTemplate. I am using InPlace edit mode.

I have found that I can get the current values by using editedItem.FindControl("...")... but this is a little more work and it doesn't give me the previous values either.

Should I be able to use the ExtractValues and SavedOldvalues methods in this instance or is there some reason why it cannot be used? If it should be working - any thought on why both collections are coming up with nulls for everying?

The codebehind for updates:

protected void UpdateAll_Clicked(object sender, EventArgs e)

{

try

{

WeatherForecast w = new WeatherForecast();

WeatherForecast orig_w = new WeatherForecast();

foreach (GridDataItem item in RadGrid1.EditItems)

{

GridEditableItem editedItem = (item.OwnerTableView.EditMode == GridEditMode.InPlace) ? item : (GridEditableItem)item.EditFormItem;

Hashtable newValues = new Hashtable();

//The GridTableView will fill the values from all editable columns in the hash

RadGrid1.MasterTableView.ExtractValuesFromItem(newValues, editedItem);

newValues["Temp"] = (editedItem.FindControl("txtTemp") as TextBox).Text;

newValues["Temp2"] = (editedItem.FindControl("txtTemp2") as TextBox).Text;

newValues["ShortText"] = (editedItem.FindControl("txtShortText") as TextBox).Text;

newValues["Pop"] = (editedItem.FindControl("txtPop") as TextBox).Text;

newValues["Manual"] = (editedItem.FindControl("radioManualEdit") as RadioButton).Checked;

newValues["ConditionId"] = (editedItem.FindControl("listWeather") as RadComboBox).SelectedItem.Value;

newValues["UvIndex"] = (editedItem.FindControl("listUvIndex") as DropDownList).SelectedItem.Value;

w.Id = Convert.ToInt32(editedItem.GetDataKeyValue("Id"));

w.Temp = Convert.ToInt32(newValues["Temp"]);

w.Temp2 = Convert.ToInt32(newValues["Temp2"]);

w.ConditionId = Convert.ToInt32(newValues["ConditionId"]);

w.ShortText = Convert.ToString(newValues["ShortText"]);

if (string.IsNullOrEmpty(Convert.ToString(newValues["Pop"])))

{

w.Pop = null;

}

else

{

w.Pop = Convert.ToInt32(newValues["Pop"]);

}

w.Manual = Convert.ToBoolean(newValues["Manual"]);

w.UvIndex = Convert.ToInt32(newValues["UvIndex"]);

w.UvText = WeatherForecast.GetUvText(w.UvIndex);

// TODO: implement day of week editing

// w.DayOfWeek = Convert.ToString(newValues["DayOfWeek"]);

orig_w.Id = w.Id;

orig_w.Temp = Convert.ToInt32(editedItem.SavedOldValues["Temp"]);

orig_w.Temp2 = Convert.ToInt32(editedItem.SavedOldValues["Temp2"]);

orig_w.ConditionId = Convert.ToInt32(editedItem.SavedOldValues["ConditionId"]);

orig_w.ShortText = Convert.ToString(editedItem.SavedOldValues["ShortText"]);

if (string.IsNullOrEmpty(Convert.ToString(editedItem.SavedOldValues["Pop"])))

{

orig_w.Pop = null;

}

else

{

orig_w.Pop = Convert.ToInt32(editedItem.SavedOldValues["Pop"]);

}

orig_w.Manual = Convert.ToBoolean(editedItem.SavedOldValues["Manual"]);

orig_w.UvIndex = Convert.ToInt32(editedItem.SavedOldValues["UvIndex"]);

orig_w.UvText = WeatherForecast.GetUvText(orig_w.UvIndex);

// wDAO.UpdateWeather(w, orig_w);

editedItem.Edit = false;

}

catch (Exception ex)

{

Common.FlowFunctions.ShowErrorMessage(RadAjaxManager1, "Error updating weather: " + ex.Message, true);

}

setSelection = true;

RadGridCity.Rebind();

RadGrid1.Rebind();

}

The markup:

<telerik:RadGrid ID="RadGrid1" runat="server" CellSpacing="0"

GridLines="None" AllowSorting="false" AutoGenerateColumns="False" AllowPaging="true" PageSize="20"

AllowAutomaticDeletes="false"

AllowAutomaticUpdates="false"

OnPreRender="RadGrid1_PreRender"

OnSortCommand="RadGrid1_SortCommand"

OnNeedDataSource="RadGrid1_NeedDataSource"

OnItemCommand="RadGrid1_ItemCommand"

OnItemDataBound="RadGrid1_ItemDataBound" >

<ClientSettings >

<ClientEvents OnKeyPress="keyPressedStopEnter" />

</ClientSettings>

<PagerStyle AlwaysVisible="false" />

<ItemStyle CssClass="report_col_B" />

<AlternatingItemStyle CssClass="report_col_A" />

<MasterTableView DataKeyNames="Id" EditMode="InPlace" TableLayout="Fixed" CommandItemDisplay="Top">

<Columns>

<telerik:GridCheckBoxColumn DataField="Manual" DataType="System.Boolean"

HeaderText="Source" SortExpression="Manual" UniqueName="Manual" Display="false">

</telerik:GridCheckBoxColumn>

<telerik:GridBoundColumn DataField="LocationCode" UniqueName="LocationCode" HeaderText="Location Code" Visible="false" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="LocationName" DataType="System.String" UniqueName="LocationName" Visible="false" HeaderText="Location" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ConditionId" UniqueName="ConditionId" HeaderText="Icon" AllowSorting="false" Visible="false" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="TempLabel" UniqueName="TempLabel" Visible="false" AllowSorting="false" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Temp2Label" UniqueName="Temp2Label" Visible="false" AllowSorting="false" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Temp" UniqueName="Temp" HeaderText="Temp" AllowSorting="false" Visible="false" HeaderTooltip="The high for daily forecasts." ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Temp2" UniqueName="Temp2" HeaderText="Temp 2" AllowSorting="false" Visible="false" HeaderTooltip="The low for daily forecasts and 'Feels Like' for current and hourly." ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ShortText" UniqueName="ShortText" HeaderText="Short Text" Visible="false" AllowSorting="false" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Pop" UniqueName="Pop" HeaderText="P.O.P." AllowSorting="false" Visible="false" HeaderTooltip="Probability of Precipitation" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="UvIndex" UniqueName="UvIndex" HeaderText="UV Index" Visible="false" AllowSorting="false" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="UvText" UniqueName="UvText" HeaderText="UV Text" Visible="false" AllowSorting="false" ></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ModifiedDate" UniqueName="ModifiedDate" HeaderText="Last Updated" SortExpression="ModifiedDate" ReadOnly="true">

<ItemStyle CssClass="smc_form" />

</telerik:GridBoundColumn>

</Columns>

<ItemTemplate>

<table cellpadding="0" cellspacing="0" >

<col width="140px" />

<col width="30px" />

<col width="190px" />

<col width="80px" />

<col width="50px" />

<col width="120px" />

<col width="80px" />

<tr>

<td rowspan="2">

<h2><%# ForecastDayDisplay(Eval("ForecastName"), Eval("DayOfWeek"))%></h2>

<%#Eval("ModifiedDate", "{0:g}")%>

</td>

<td rowspan="2"><asp:ImageButton ID="ManualToggleButton" Height="24px" runat="server" CausesValidation="false" /></td>

<td rowspan="2"><%# Eval("ConditionText")%></td>

<td align="right" ><%# Eval("TempLabel")%></td>

<td><%# Eval("Temp")%> <span class="smc_bodybold">°C</span></td>

<td>Text:</td>

<td><%# Eval("ShortText")%></td>

<td align="right" >UV Index:</td>

<td><%# NullIntDisplay(Eval("UvIndex"), "")%></td>

</tr>

<tr>

<td align="right" ><%# Eval("Temp2Label")%></td>

<td ><%# Eval("Temp2")%> <span class="smc_bodybold">°C</span></td>

<td><span title="Probability of precipitation" style="cursor: help" >P.O.P.:</span></td>

<td><%# NullIntDisplay(Eval("Pop"), "%")%></td>

<td align="right" >UV Text::</td>

<td><%# Eval("UvText")%></td>

</tr>

</table>

</ItemTemplate>

<CommandItemSettings ShowAddNewRecordButton="false" ShowRefreshButton="false" />

<CommandItemTemplate>

<table>

<tr>

<td style="font-size: 13px; padding: 10px 10px; text-align: left; white-space: nowrap; font-weight: bold">

<asp:Label ID="labelCityName" runat="server" Text="Select" ></asp:Label>

<br /> City Weather Details

</td>

<td><br />

<asp:Button ID="btnUpdateAll" CssClass="smc_form" runat="server" Text="Save Now >" CommandName="UpdateAll"

Visible="true" OnClick="UpdateAll_Clicked" />

</td>

<td style="width: 50px;"> </td>

<td style="font-size: 11px; padding: 10px 10px; text-align: left; white-space: nowrap; font-weight: bold">

<asp:Panel ID="panelDataSources" runat="server">

<asp:Label runat="server" ID="Label1" Text="Data Source:"></asp:Label>

<br />

<asp:ImageButton Height="32" ID="btnAllManual" CommandName="SetAllAutoOff" ImageUrl="~/images/icons/auto_off.png" runat="server" ToolTip="Set all forecasts to Manual" AlternateText="All Manual" OnClientClick="return confirm('Are you sure you want to set all forecasts to Manual?');" />

<asp:ImageButton Height="32" ID="btnAllAutomated" CommandName="SetAllAutoOn" ImageUrl="~/images/icons/auto_on.png" runat="server" ToolTip="Set all forecasts to Data Feed" AlternateText="All Auto" OnClientClick="return confirm('Are you sure you want to set all forecasts to Data Feed?');" />

</asp:Panel>

</td>

</tr>

</table>

</CommandItemTemplate>

<EditItemTemplate>

<table cellpadding="0" cellspacing="0" >

<col width="140px" />

<col width="100px" />

<col width="190px" />

<col width="80px" />

<col width="60px" />

<col width="140px" />

<col width="120px" />

<tr>

<td rowspan="2">

<h2><%# ForecastDayDisplay(Eval("ForecastName"), Eval("DayOfWeek"))%></h2>

<span class="smc_body"><%#Eval("ModifiedDate", "{0:g}")%></span>

</td>

<td rowspan="2">

<asp:RadioButton ID="radioManualEdit" runat="server" Text="Manual" Checked='<%# Bind("Manual") %>' GroupName="manualAuto" />

<br />

<asp:RadioButton ID="radioDataFeedEdit" runat="server" Text="Data Feed" Checked='<%# (!(Convert.ToBoolean(Eval("Manual")))) %>' GroupName="manualAuto" />

</td>

<td rowspan="2">

<telerik:RadComboBox ID="listWeather" CssClass="smc_form" AppendDataBoundItems="true" DataSourceID="weatherListDataSource"

DataTextField="weatherName" DataValueField="weatherId" Width="190px" runat="server" DropDownWidth="250px" Height="200px"

SelectedValue='<%# Bind("ConditionId")%>' >

<Items>

<telerik:RadComboBoxItem Text="-" Value="0" />

</Items>

</telerik:RadComboBox>

</td>

<td align="right"><%# Eval("TempLabel")%></td>

<td>

<asp:TextBox ID="txtTemp" runat="server" Width="25px" Text='<%# Bind("Temp")%>' CssClass="smc_form flow_right" MaxLength="5" AutoCompleteType="None" >

</asp:TextBox> <span class="smc_bodybold">°C</span>

</td>

<td align="right">Text:</td>

<td>

<asp:TextBox ID="txtShortText" runat="server" Width="100px" Text='<%# Bind("ShortText")%>' CssClass="smc_form" MaxLength="128" >

</asp:TextBox>

</td>

<td rowspan="2">UV Index:

<br />

<asp:DropDownList ID="listUvIndex" runat="server" CssClass="smc_form" Width="120px" SelectedValue='<%# Bind("UvIndex")%>' >

<asp:ListItem Text="-" Value="-1"></asp:ListItem>

<asp:ListItem Text="0 - Low" Value="0"></asp:ListItem>

<asp:ListItem Text="1 - Low" Value="1"></asp:ListItem>

<asp:ListItem Text="2 - Low" Value="2"></asp:ListItem>

<asp:ListItem Text="3 - Moderate" Value="3"></asp:ListItem>

<asp:ListItem Text="4 - Moderate" Value="4"></asp:ListItem>

<asp:ListItem Text="5 - Moderate" Value="5"></asp:ListItem>

<asp:ListItem Text="6 - High" Value="6"></asp:ListItem>

<asp:ListItem Text="7 - High" Value="7"></asp:ListItem>

<asp:ListItem Text="8 - Very High" Value="8"></asp:ListItem>

<asp:ListItem Text="9 - Veru High" Value="9"></asp:ListItem>

<asp:ListItem Text="10 - Very High" Value="10"></asp:ListItem>

<asp:ListItem Text="11+ - Extreme" Value="11"></asp:ListItem>

</asp:DropDownList>

</td>

</tr>

<tr>

<td align="right"><%# Eval("Temp2Label")%></td>

<td>

<asp:TextBox ID="txtTemp2" runat="server" Width="25px" Text='<%# Bind("Temp2")%>' CssClass="smc_form flow_right" MaxLength="5" AutoCompleteType="None" >

</asp:TextBox> <span class="smc_bodybold">°C</span>

</td>

<td align="right">P.O.P.:</td>

<td>

<asp:TextBox ID="txtPop" runat="server" Width="25px" Text='<%# Bind("Pop")%>' CssClass="smc_form flow_right" MaxLength="5" AutoCompleteType="None">

</asp:TextBox> <span class="smc_bodybold">%</span>

</td>

<td></td>

</tr>

</table>

</EditItemTemplate>

</MasterTableView>

</telerik:RadGrid>

3 Answers, 1 is accepted

Accepted

answered on 18 May 2012, 09:54 AM

Hello Jonathan,

There are two reasons for this behavior. First you are looping through all edit items and not only the items that are in edit mode. You could add additional statement and check if the editItem.IsInEditMode. The second issue is the MasterTableView EditItemTemplate which prevents the RadGrid internal column editors to extract the values. You could use the approach used in the help article below to extract the values from the item.

http://www.telerik.com/help/aspnet-ajax/grid-insert-update-delete-at-database-level.html

You could achieve your scenario by following the code provided in the demo below:

Grid / Client Edit with Batch Server Update

Kind regards,
Antonio Stoilkov
the Telerik team

If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.

Product Bundles

DevCraft

Web

Mobile

Document Management

Desktop

Reporting & Mocking

Automated Testing

CMS

UI/UX Tools

Debugging

Free Tools

Support and Learning

Productivity and Design Tools

Batch Edit InPlace , Update All, ExtractValuesFromItem and SavedOldValues giving null

3 Answers, 1 is accepted