telerik radcombobox "OnClientTextChange" event doesn't fire - telerik

I wrote the following code, based on telerik examples:
<telerik:RadComboBox ID="rcbPageSize"
runat="Server"
skin="Gray"
AllowCustomText="true"
Style="float:right; margin-left: 5px;"
Width="60px"
OnClientTextChange = "PageSizeChanged"
OnClientSelectedIndexChange = "PageSizeChanged">
<Items>
<telerik:RadComboBoxItem runat="Server" Text="10" Value="10" />
<telerik:RadComboBoxItem runat="Server" Text="20" Value="20" Selected="true" />
<telerik:RadComboBoxItem runat="Server" Text="50" Value="50" />
<telerik:RadComboBoxItem runat="Server" Text="150" Value="150" />
<telerik:RadComboBoxItem runat="Server" Text="250" Value="250" />
</Items>
</telerik:RadComboBox>
<telerik:RadCodeBlock ID="rcb" runat="server">
<script type="text/javascript">
function PageSizeChanged(sender, eventArgs) {
alert("You typed " + sender.get_text());
}
</script>
</telerik:RadCodeBlock>
When I change the selection, the function "PageSizeChanged" is called, but when I change the text by typing inside the combobox, the function is never called.
Anyone has a suggestion why?
Thanks,
Inbal.

I find it's definitely a 'feature' of this Telerik control. If you use your code, type something, press enter and then click outside the box the event will fire.
Just pressing enter or just clicking outside don't fire it on their own.
I'm using a slightly newer version of the Telerik controls as the skin Gray has been deprecated but I'm assuming it will be the same in your version.

OnClientTextChange WILL NOT fire until the user hits Enter or clicks outside the RadComboBox. Says so here: http://www.telerik.com/help/aspnet-ajax/combobox-onclienttextchange.html

You will have to set AutoPostBack="true", to fire server events.
<telerik:RadComboBox ID="rcbPageSize"
AutoPostBack="true"
runat="Server"
skin="Gray"
AllowCustomText="true"
Style="float:right; margin-left: 5px;"
Width="60px"
OnClientTextChange = "PageSizeChanged"
OnClientSelectedIndexChange = "PageSizeChanged">

Related

GridButtonColumn as a TargetControlID in ModalPopupExtender?

I have a GridButtonColumn in my RadGrid and I want to open a ModalPopupExtender on click event of the GridButtonColumn. Now the problem is what do I have to give in TargetControlID in my ModalPopupExtender?
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID=""
RepositionMode="RepositionOnWindowResize" PopupCo## Heading##ntrolID="TargetTemplatePanel"
BackgroundCssClass="modalBackground">
</asp:ModalPopupExtender>
You can set the ModalPopupExtender's TargetControlID to pretty much any server-side control you want. Here's an example from a project of mine:
<div id="rscmain" runat="server">
<telerik:RadScriptManager ID="SM1" runat="server" EnablePageMethods="true" />
</div>
<asp:ModalPopupExtender ID="MPE1" runat="server" TargetControlID="rscmain" />

C# Asp.net Ajaxcontroltoolkit multiple Accordion Panels. Show or Hide last panel if a checkbox is selected in first panel

<ajaxToolkit:Accordion ID="Accordion1" CssClass="accordion" SelectedIndex="0" HeaderCssClass="accordionHeader" HeaderSelectedCssClass="accordionHeaderSelected" AutoSize="None" RequireOpenedPane="false" ContentCssClass="accordionContent" runat="server">
<Panes>
<ajaxToolkit:AccordionPane ID="Pane1" runat="server">
<Header><b>Panel 1</b></Header>
<Content>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<br>
Age: <asp:textbox id="Age1" runat="server" Width="35" Font-Bold="True"/><br>
Attorney: <asp:CheckBox ID="Attorney" runat="server" /><br>
<asp:button ID="Button1" text="Submit" OnClick="Button1_Click"
runat="server"/><br>
<asp:label id="Message1" runat="server" ForeColor="White" Font-Size="Small" Font-Bold="True"/>
</ContentTemplate>
</asp:UpdatePanel>
</Content>
</ajaxToolkit:AccordionPane>
<ajaxToolkit:AccordionPane ID="Pane2" runat="server">
<Header><b>Panel 2</b></Header>
<Content>
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<br>
<asp:textbox id="Age2" runat="server" Width="35" Font-Bold="True"/><br>
<asp:button ID="Button2" text="Submit" onclick="Button2_Click"
runat="server"/><br><br>
<asp:label id="Message2" runat="server" ForeColor="White" Font-Size="Small" Font-Bold="True" />
</ContentTemplate>
</asp:UpdatePanel>
</Content>
</ajaxToolkit:AccordionPane>
</Panes>
protected void Button1_Click(object sender, EventArgs e) {
if (Attorney.Checked) {
Pane2.Visible = true;
} else {
Pane2.Visible = false;
}
//Message1.Text = Age1.Text;
}
I have five Accordion Panels. Last Panel should be displayed only if a checkbox is checked in the first panel. Inside each Accordion Panel I have a UpdatePanel and within that I have ContentTemplate with controls and submit button particular to that accordion panel. The reason I added UpdatePanel is so that when i update a particular panel it does not affect other accordion panels.
The problem is I need to toggle last accordion panel display depending upon if a checkbox is checked in the first Panel and submit button is clicked. In Code behind, in the btnSubmit1 event...I have code that says if checkbox is checked....Pane2.Visible = true else Pane2.Visible=false. For some reasons it still shows the LastPanel.
I am not sure where am I going wrong...please advise!
Thanks!
Jini
I fixed the problem by adding an outer update panel...and removed the updatepanel for Panel 2. Haven't tested it thoroughly but so far looks good.
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:UpdatePanel ID="OuterPanel" UpdateMode="Always" ChildrenAsTriggers="true" runat="server">
<ContentTemplate>
<ajaxToolkit:Accordion ID="Accordion1" CssClass="accordion" SelectedIndex="0" HeaderCssClass="accordionHeader"
HeaderSelectedCssClass="accordionHeaderSelected" AutoSize="None" RequireOpenedPane="false" ContentCssClass="accordionContent" runat="server">
<Panes>
<ajaxToolkit:AccordionPane ID="Pane1" runat="server">
<Header><b>Panel 1</b></Header>
<Content>
<br>
Age: <asp:textbox id="Age1" runat="server" Width="35" Font-Bold="True" /><br />
Attorney: <asp:CheckBox ID="Attorney" runat="server" /><br>
<asp:button ID="Button1" text="Submit" OnClick="Button1_Click"
runat="server"/><br>
<asp:label id="Message1" runat="server" ForeColor="White" Font-Size="Small" Font-Bold="True"/>
</Content>
</ajaxToolkit:AccordionPane>
<ajaxToolkit:AccordionPane ID="Pane2" runat="server">
<Header><b>Panel 2</b></Header>
<Content>
<br>
<asp:textbox id="Age2" runat="server" Width="35" Font-Bold="True"/>
<asp:button ID="Button2" text="Submit" onclick="Button2_Click"
runat="server"/><br><br>
<asp:label id="Message2" runat="server" ForeColor="White" Font-Size="Small" Font-Bold="True" />
</Content>
</ajaxToolkit:AccordionPane>
</Panes>
</ajaxToolkit:Accordion>
</ContentTemplate>
I'd like to see your code to be sure, but I'm expecting it's because you have an UpdatePanel in each of the AccordionPanels. Once an event happens in one UpdatePanel, ASP.NET will not run code handling that event that is attached to another UpdatePanel.
First, I'd take out all UpdatePanels to see if your code works as expected. Then, I'd add one UpdatePanel wrapped around the entire Accordion and see if your code still works.
If you really decided you need to have 5 UpdatePanels, look into the <Triggers> portion of the UpdatePanel. You'll be able to provide the CheckBox's ID to force the other associated UpdatePanel to PostBack.

AJAX Tab Panel and Binding DataTable

I am trying to find a way to bind a data table to a tab panel (within a tabcontainer and template) without doing it on page_init or page_load. OR Binding a data table to a gridview then binding that gridview to the tab panel. I know how to bind a data table to a gridview so that's the easy part. I have to be able to - on click of a button - add or create multiple tabs in that tab container.
I want the user to be able to click a button, run some queries and then make the tab container visible and bind the data from a data table to a panel at that time (then the panel to the tab container). Do this multiple times.
Can someone provide an example or explain how I can accomplsih this? Is Update Panel my answer and where can I find some good examples?
UPDATE
I found that it was very easy to bind data to a gridview within Ajax tabs. Of course you needed you script manager ajax reference declared in the asp page and web.config file. You also need to add the ajax css style to an existing style sheet. i tried using a seperate one and it didn't work.
ASP HTML
<AjaxToolkit:TabContainer ID="TabContainer1" runat="server" ActiveTabIndex="0"
Visible="false" ScrollBars="Both"
CssClass="Tab2" Width="1326px" Height="464px" >
<AjaxToolkit:TabPanel ID="TabPanel1" runat="server" HeaderText="Empty" Enabled="true" ScrollBars="Both" CssClass="Tab2">
<ContentTemplate>
<div style="overflow:auto;width:1287px; height: 418px;">
<font color="white" size="1" face="Verdana">
<asp:GridView ID="SalesOrderView1" runat="server" BackColor="White" BorderColor="#DEDFDE"visible="False"BorderStyle="None" BorderWidth="1px"
CellPadding="4" ForeColor="Black"
GridLines="Vertical" HorizontalAlign="Center">
<AlternatingRowStyle BackColor="White" />
<FooterStyle BackColor="#CCCC99" />
<HeaderStyle BackColor="#6B696B" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#F7F7DE" ForeColor="Black" HorizontalAlign="Right" />
<RowStyle BackColor="#F7F7DE" />
<SelectedRowStyle BackColor="#CE5D5A" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#FBFBF2" />
<SortedAscendingHeaderStyle BackColor="#848384" />
<SortedDescendingCellStyle BackColor="#EAEAD3" />
<SortedDescendingHeaderStyle BackColor="#575357" />
</asp:GridView>
</div>
</font>
</ContentTemplate>
</AjaxToolkit:TabPanel>
<AjaxToolkit:TabPanel ID="TabPanel2" runat="server" HeaderText="Empty" ScrollBars="Both" CssClass="Tab2">
<ContentTemplate >
</AjaxToolkit:TabContainer>
C# Code to bind data to the gridview on click button event.
SalesOrderView1.Visible = true;
TabPanel1.Visible = true;
TabPanel1.HeaderText = Order_List[multi_order_count];

Question about AJAX Update Panel

Here is the problem im having. I have 5 buttons on my form that appear next to each other (horizontal). 3 out of the 5 buttons had to be put in an update panel b/c these buttons have to do AsyncPostBack, the other 2 buttons need to be outside to do a postback. Everything works the way I would like accept that all the buttons dont appear on the same line. Is there anything I can do put get these 5 buttons to appear on the same line, given the different functionality of these buttons?
The UpdatePanel renders a <div> you need to style this div so that that it displays inline Notice the Style="display:inline" in the following code. There's other ways to accomplish this depending on your layout but this is the most straightforward.
<asp:UpdatePanel ID="UpdatePanel1" runat="server" Style="display:inline">
<ContentTemplate>
<asp:Label ID="labelText" runat="server" Text="Label" />
<asp:Button ID="Button1" runat="server" Text="Button1" />
<asp:Button ID="Button2" runat="server" Text="Button2" />
<asp:Button ID="Button3" runat="server" Text="Button3" />
</ContentTemplate>
</asp:UpdatePanel>
<asp:Button ID="Button4" runat="server" Text="Button4" />
<asp:Button ID="Button5" runat="server" Text="Button5" />
You don't have to have your buttons inside the UpdatePanel to make this work. You would simply need to define them as AsyncPostBackTriggers. You don't have to worry about breaking your layout then.
<div class="toolbar">
<asp:Button ID="Button1" runat="server" Text="Button1" />
<asp:Button ID="Button2" runat="server" Text="Button2" />
<asp:Button ID="Button3" runat="server" Text="Button3" />
</div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Label ID="labelText" runat="server" Text="Label" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="Button2" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="Button3" EventName="Click" />
</Triggers>
</asp:UpdatePanel>

GridView sorting with Template Field and Header Template

I'm using GridView and there is a dropdownlist in header cell for filtering.
<gm:GridView ID="routePlanGridView" runat="server" AutoGenerateColumns="False"
AllowPaging="true" PageSize="20" GridLines="Both" ShowFooter="true" CssClass="grid"
DataKeyNames="RoutePlanId" OnSorting="routePlanGridView_Sorting"
AllowSorting="true" OnPageIndexChanging="routePlanGridView_PageIndexChanging"
OnSelectedIndexChanging="routePlanGridView_SelectedIndexChanging"
OnRowDataBound="routePlanGridView_RowDataBound"
OnRowEditing="routePlanGridView_RowEditing"
OnRowUpdating="routePlanGridView_RowUpdating">
<HeaderStyle CssClass="gridHeaderFooter" />
<FooterStyle CssClass="gridHeaderFooter" />
<RowStyle CssClass="gridRow" />
<AlternatingRowStyle CssClass="gridRowAlternate" />
<Columns>
<asp:TemplateField SortExpression="SPName">
<HeaderTemplate>
SP Name<br />
<asp:DropDownList ID="spNameFilterDDL" runat="server" CssClass="gridControl" AutoPostBack="true" DataSourceID="SPNameSDS" DataTextField="SPName" OnDataBound="filterDDL_DataBound" OnSelectedIndexChanged="spNameFilterDDL_SelectedIndexChanged" />
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="spNameLabel" runat="server" Text='<%# Bind("SPName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<...15 more...>
</Columns>
</gm:GridView>
and there are relevant event handlers for sorting and paging.
Now the problem is if I put "SP Name" text in a link button, page crashes when link clicked, otherwise no link produced to sort.
If I remove Header Template fields (all of them) and put a text with HeaderText attribute of TemplateField it works as expected. Is there a way to put them together? I need that dropdown and also sorting.
Thanks.
sorry, forgot to insert the code correctly - here:
<asp:LinkButton runat="server" Text="SP Name" CommandName="Sort" CommandArgument="SPName" ></asp:LinkButton>
You need to use a link button for your header text. So in place of "SP Name", use . It should work if you are handling sorting.

Resources