UpdatePanel Not Refreshing Child Controls : The Official Microsoft ASP.NET Forums

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UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 03:50 PM|LINK

I have a DropDownList in a GridView footer cell. It has a HoverExtender that shows a Button which onClick activates a ModalPopUpextender by which a user can add a value to the DropDownList.

The UpdatePanel below is in the <FooterTemplate> of a nested GridView.

<asp:UpdatePanel ID="UpdatePanel_DropDownList_INSERT_OrderLineItem_Consumer" runat="server" UpdateMode="Conditional" >
	<ContentTemplate>
		<center>
		<asp:DropDownList ID="DropDownList_INSERT_OrderLineItem_Consumer" runat="server" ToolTip="Consumer" CssClass="gv_dropdownlist_footer"
			DataTextField="ConsumerName" DataValueField="ConsumerId" AppendDataBoundItems="true"
			DataSourceID="SqlDataSource_DropDownList_INSERT_OrderLineItem_Consumer">
			<asp:ListItem Value="" Selected="True">(Consumer)</asp:ListItem>
		</asp:DropDownList>
		</center>
		<asp:HoverMenuExtender ID="HoverMenuExtender_INSERT_OrderLineItem_Consumer"  runat="server"
			TargetControlID="DropDownList_INSERT_OrderLineItem_Consumer"
			PopupControlID="Panel_HoverMenuExtender_INSERT_Consumer"
			PopupPosition="Right" />
		<asp:SqlDataSource ID="SqlDataSource_DropDownList_INSERT_OrderLineItem_Consumer" runat="server"
			ConnectionString="<%$ ConnectionStrings:ConnectionString_SqlClient %>"
			SelectCommand="SELECT Consumer.ConsumerId, Consumer.ConsumerName FROM Consumer ORDER BY Consumer.ConsumerName">
		</asp:SqlDataSource>
		<asp:RequiredFieldValidator ID="RequiredFieldValidator_DropDownList_INSERT_OrderLineItem_Consumer" runat="server" CssClass="RequiredField_ERROR"
			Display="None" ErrorMessage="Required Field"
			ValidationGroup="INSERT_OrderLineItem"
			InitialValue=""
			ControlToValidate="DropDownList_INSERT_OrderLineItem_Consumer" />
		<asp:ValidatorCalloutExtender ID="ValidatorCalloutExtender_DropDownList_INSERT_OrderLineItem_Consumer" runat="server" CssClass="ValidatorCalloutExtender"
			TargetControlID="RequiredFieldValidator_DropDownList_INSERT_OrderLineItem_Consumer"
			WarningIconImageUrl="~/shared/img/js_popup/important.gif" />
	</ContentTemplate>
	<Triggers>
		<asp:AsyncPostBackTrigger ControlID="Button_INSERT_Save_Consumer" />
	</Triggers>
</asp:UpdatePanel>

<asp:Panel ID="Panel_HoverMenuExtender_INSERT_Consumer" runat="server" style="display:none" >
	<asp:Button ID="Button_INSERT_Consumer" runat="server" Text="+" ToolTip="Create Consumer" />
</asp:Panel>

<asp:ModalPopupExtender ID="ModalPopupExtender_INSERT_Consumer" runat="server"
	TargetControlID="Button_INSERT_Consumer"
	PopupControlID="Panel_INSERT_Consumer"
	CancelControlID="Button_INSERT_Cancel_Consumer"
	BackgroundCssClass="modalPopUpBackground">
</asp:ModalPopupExtender>

The ModalPopupExtender above activates the Panel below

<asp:Panel ID="Panel_INSERT_Consumer" runat="server" BackColor="Transparent" style="display:none" >
<table width="100%" style="border:3px Solid Silver; width:100%; height:100%; background-color:White" cellpadding="8" cellspacing="0" >
	<tr>
		<td>
			<uc:CreateConsumer runat="server" ID="UserControl_CreateConsumer" />
		</td>
	</tr>
	<tr>
		<td>
			<asp:Button ID="Button_INSERT_Save_Consumer" runat="server" Text="Insert" 
				ValidationGroup="INSERT_Consumer"
				CssClass="button_menu_style" 
				onmouseout="this.className='button_menu_style'" 
				onmouseover="this.className='buttonhover_menu_style'"
				OnClick="Button_INSERT_Save_Consumer_OnClick" />

			<asp:Button ID="Button_INSERT_Cancel_Consumer" runat="server" Text="Cancel" 
				CssClass="button_menu_style"
				onmouseout="this.className='button_menu_style'" 
				onmouseover="this.className='buttonhover_menu_style'" />
		</td>
	</tr>
</table>
</asp:Panel>

I am certian that my markup is corrent as it is used elsewhere sucessfully. There is something else that I am not seeing.

Thanks for any assistance you can offer.

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Re: UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 04:10 PM|LINK

Change UpdateMode for Update Panel from Conditional to Always

---------------------------------------
Mark it as Answer, if work for you
---------------------------------------

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Re: UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 04:30 PM|LINK

Thank-you for your reply but I already tried setting UpdateMode="Always".

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Re: UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 04:39 PM|LINK

Hi,

How is defined you ScriptManager on ASPX?

Please, we need the complete code.

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Re: UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 04:59 PM|LINK

<asp:ToolkitScriptManager ID="ToolkitScriptManager1" EnablePartialRendering="true" runat="server"></asp:ToolkitScriptManager>

is in the Master Page.

I do not believe it is a good idea to paste 1700 + lines of markup here.

Edited by matt.gulick on Jan 04, 2013 05:29 PM

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Re: UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 05:46 PM|LINK

Did you try include the ModalPopupExtender and the content Panel inside the UpdatePanel?

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Re: UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 06:54 PM|LINK

Thank-you for your reply.

radamanthys

Did you try include the ModalPopupExtender and the content Panel inside the UpdatePanel?

Yes, on your suggestion I did try, but Button_INSERT_Save_Consumer_OnClick will not fire when inside the UpdatePanel.

It runs the sql insert command among other things.

protected void Button_INSERT_Save_Consumer_OnClick(object sender, EventArgs e)
{
	GridView GridView_Object = (GridView)Code.WebHelper.FindControlRecursive(Page, "GridView2");
	SqlDataSource SqlDataSource_Object = (SqlDataSource)UserControl_CreateConsumer.FindControl("SqlDataSource_GridView_Consumer");
	SqlConnection sqlConn = new SqlConnection(Master.sqlConnString);
	SqlCommand sqlCommand = new SqlCommand(SqlDataSource_Object.InsertCommand, sqlConn);

	sqlCommand.Parameters.Add("@ConsumerName", SqlDbType.VarChar, 50).Value = ((TextBox)UserControl_CreateConsumer.FindControl("TextBox_INSERT_Consumer_Name")).Text;

	try
	{
		sqlConn.Open();
		sqlCommand.ExecuteNonQuery();

		DropDownList DropDownList_Object = (DropDownList)GridView_Object.FooterRow.FindControl("DropDownList_INSERT_OrderLineItem_Consumer");
		DropDownList_Object.Items.Clear();
		DropDownList_Object.Items.Add(new ListItem("(Consumer)", ""));
		DropDownList_Object.DataBind();
		
		UpdatePanel UpdatePanel_Object = (UpdatePanel)GridView_Object.FooterRow.FindControl("UpdatePanel_DropDownList_INSERT_OrderLineItem_Consumer");
		UpdatePanel_Object.Update();

		ModalPopupExtender ModalPopupExtender_Object = (ModalPopupExtender)GridView_Object.FooterRow.FindControl("ModalPopupExtender_INSERT_Consumer");
		ModalPopupExtender_Object.Hide();

	}
	catch (SqlException ex) { ClientScript.RegisterStartupScript(GetType(), "Message", "<SCRIPT LANGUAGE='javascript'>alert('" + Code.WebHelper.GetCurrentMethod() + ": " + ex.Message.ToString().Replace("'", "") + "');</script>"); }
	finally
	{
		sqlCommand.Dispose();
		sqlConn.Dispose();
		sqlConn.Close();
	}
}

I have discovered that when a RowCommand event is activated on the child GridView that Controls are updated.........problem is that I have not been able to figure out how to envoke the RowCommand event from the Button control in the ModalPopupExtender.

It may be eaiser to do this with if I include the ModalPopupExtender and Panel back into the UpdatePanel, but then I am still left with the Button onClick event not firing.

I know there were other reasons why I keep my ModalPopupExtender outside of the UpdatePanel, but they don't come to mind ATM.

Edited by matt.gulick on Jan 04, 2013 07:08 PM

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radamanthys

Member

228 Points

74 Posts

Re: UpdatePanel Not Refreshing Child Controls

Jan 04, 2013 07:32 PM|LINK

Defining the AsyncPostBackTrigger with the button, should be enough.

Let me create a quick example related and recreate the scenario, and I told you how solve this issue...

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chetan.sarod...

All-Star

66579 Points

11270 Posts

Re: UpdatePanel Not Refreshing Child Controls

Jan 07, 2013 02:13 AM|LINK

How UpdatePanel Controls Are Refreshed

The following list describes the property settings of the UpdatePanel control that determine when a panel's content is updated during partial-page rendering.

If the UpdateMode property is set toAlways, the UpdatePanel control’s content is updated on every postback that originates from anywhere on the page. This includes asynchronous postbacks from controls that are inside other UpdatePanel controls, and postbacks from controls that are not insideUpdatePanel controls.
If the UpdateMode property is set toConditional, the UpdatePanel control’s content is updated when one of the following is true:
- When the postback is caused by a trigger for that UpdatePanel control.
- When you explicitly call the UpdatePanel control'sUpdate method.
- When the UpdatePanel control is nested inside anotherUpdatePanel control and the parent panel is updated.
- When the ChildrenAsTriggers property is set totrue and any child control of the UpdatePanel control causes a postback. Child controls of nestedUpdatePanel controls do not cause an update to the outerUpdatePanel control unless they are explicitly defined as triggers for the parent panel.

for the details of updatepanel, please refer to: http://msdn.microsoft.com/en-us/library/bb386454.aspx.

Chetan Sarode
Senior Software Engineer,
Approva Systems Pvt Ltd, Pune, India.

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matt.gulick

Member

75 Points

86 Posts

Re: UpdatePanel Not Refreshing Child Controls

Jan 07, 2013 11:55 AM|LINK

Thank-you for taking the time to respond. I have already read all about the UpdatePanel and it did not help with my situsation.

I posted here for help because as far as I understand I have done everything correct and yet the UpdatePanel is not functioning as expected.

UpdatePanel Not Refreshing Child Controls RSS

10 replies

matt.gulick

UpdatePanel Not Refreshing Child Controls

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Re: UpdatePanel Not Refreshing Child Controls

matt.gulick

Re: UpdatePanel Not Refreshing Child Controls

radamanthys

Re: UpdatePanel Not Refreshing Child Controls

matt.gulick

Re: UpdatePanel Not Refreshing Child Controls

radamanthys

Re: UpdatePanel Not Refreshing Child Controls

matt.gulick

Re: UpdatePanel Not Refreshing Child Controls

radamanthys

radamanthys

Re: UpdatePanel Not Refreshing Child Controls

chetan.sarod...

Re: UpdatePanel Not Refreshing Child Controls

How UpdatePanel Controls Are Refreshed

matt.gulick

Re: UpdatePanel Not Refreshing Child Controls

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