How do I update text in a panel using ajax and a timer?

This is a pretty basic question, I just need to update a textbox every few minutes without using a postback. The text is pulled from a sql query. Is there a example for how to do this somewhere? (simialar to how gmail updates, etc...)

Take a look at this: http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/

If you're only updating a simple text label, you could skip the UpdatePanel in my example andupdate that text on the client side, using a web method.

A combination of those two examples should give you what you're after.

Thanks for providing links.

How do I Databind to a GridView inside an Accordion Pane

I am trying to DataBind the results of a query to a GridView Control inside an Accoridon Pane. I can get the data from the elements in the Accordion Pane but I don't know how to add or bind data to them. Here is my code

ASP Code

<atlasToolkit:Accordion ID="MyAccordion" runat="server" SelectedIndex="0"
HeaderCssClass="accordionHeader" ContentCssClass="accordionContent"
FadeTransitions="true" FramesPerSecond="40" TransitionDuration="250"
AutoSize="none" >
<atlasToolkit:AccordionPane ID="AccordionRest" runat="server" >
<Header>
<a href="http://links.10026.com/?link=" onclick="return false;" class="accordionLink">Restricted Items</a>
</Header>
<Content><h1>Restrict SKUs</h1>
<asp:Label ID="lRestricted" runat="server" Text="This Months Restricted SKUS"></asp:Label>
<asp:GridView ID="gvRestricted" runat="server"></asp:GridView> <!-- This is the GridView I want to DataBind my DataSet to -->
<asp:Button ID="bRestricted" runat="server" OnClick="bRest_Click1" Text="Button" />
</Content>
</atlasToolkit:AccordionPane>

< /atlasToolkit:Accordion>

C# code

protected void Page_Load(object sender, EventArgs e)
{
String invoice = Session["invoice"].ToString();
DataSet data = ws.fillMain(invoice); //webservice to returns a DataSet
GridView gvRest = (GridView)AccordionRest.ContentContainer.FindControl("gvRest"); //This how I would get GridView, but I doesn't work to add Data to a GridView
gvRest.DataSource = data.Tables[0];
gvRest.DataBind();
}

If anyone has run into this problem and has figured out how to do this please let me know, thank you

I would create and bind the gridview in codebehind...

<atlasToolkit:AccordionID="MyAccordion"runat="server"SelectedIndex="0"

HeaderCssClass="accordionHeader"ContentCssClass="accordionContent"

FadeTransitions="true"FramesPerSecond="40"TransitionDuration="250"AutoSize="None">

</atlasToolkit:Accordion>

code behind:

...

AccordianPane pane =newAccordionPane();

pane.HeaderContainer.Controls.Add(newLiteralControl("headerName"));

pane.ContentContainer.Controls.Add(GetGridView());

MyAccordion.Controls.Add(pane);

privateGridView GetGridView(){

GridView gridView =newGridView();

...

}

Thanks for the help that worked Perfect.

I was able to add and populate the GridView control on the Accordion Pane. But I ran into an new obsticle. I have added a CommandField column to my GridView, and I want to catch the event when my commandview is selected. But I don't know how to declare the OnSelectedIndexChange in the code behind, and i dont' know if I catching the event correctly. Any help would be greatly appreciated, I am fairly new to ASP and Atlas, so detailed explainations and code examples are greatley appreicated.

Here is my code.

protected void Page_Load(object sender, EventArgs e) {try { String invoice = Session["invoice"].ToString(); DataSet data = ws.fillCustomer(invoice); GridView gvRestricted = NewGridView();/*how do I add a Command Field Event so I can catch it*/ gvRestricted.DataSource = data.Tables[0]; gvRestricted.DataBind(); AccordionRest.ContentContainer.Controls.Add(gvRestricted); }catch { } }public GridView NewGridView() { CommandField delete =new CommandField(); delete.ShowDeleteButton =true; delete.DeleteText ="Clear"; GridView grid =new GridView(); grid.CssClass ="gridView"; grid.HeaderStyle.CssClass ="gridViewHeader"; grid.FooterStyle.CssClass ="gridViewFooter"; grid.AlternatingRowStyle.CssClass ="gridViewAlternate"; grid.PagerStyle.CssClass ="gridViewPager"; grid.RowStyle.CssClass ="gridViewRow"; grid.Columns.Add(delete);return grid; }void gvRest_DeleteIndexChanged(Object sender, EventArgs e) { GridView grid = (GridView)AccordionRest.ContentContainer.FindControl("gvRest"); GridViewRow row = grid.SelectedRow;/*This is where I need to hand the event of the command field being triggered*/ }

I found the solution

grid.SelectedIndexChanged += new EventHandler(grid_SelecetedIndexChanged);

void grid_SelectedIndexChanged(Object sender, EventsArgs e)
{

}

I created the grid in code behind and register the PAgeIndexChanging event, but when I click in a diferent Page number the event hadlr is not fired or is filtreded by the accordion control and I don't get to change the page. Besides the site does a Posta back, whichi is not correct, because the accordion is inside a UpdataPanel de Ajax.

I don't know how to solve this issue.

Thank in advance for you help.

Try doing this for each AccordionControl on your page in the Page_Load event (before doing anything else with the AccordionControls):

 
Accordion1.FindControl("dummy");
  

The "dummy" name isn't important, it's just that calling the FindControl method works around the problem. The full details of the problem were posted athttp://couldbedone.blogspot.com/2007/07/what-wrong-with-accordion-control.html (thanks to Yuriy!)

how can I transfer more than one query conditions to the autocomplete control

Now I have a aspx page to show the department employee list. At the above of the page is the query section in which I can choose a department from a dropdownlist and a textbox for typing employee name. Since the signature of the autocomplete controlwebserviceis

"public string[] GetPersonNameHasCertainPrefix(string prefixText, int count)"

So the only query condition I can get is the 'Person Name', when I type "John" in the textbox the list I get is the person name start with 'John' fromall of the company. but now I just want to get the person name start with 'John'in certain department.

I don't know how to get this.

Any help and suggestions are apperciated. Thank you all:)

"public string[] GetPersonNameHasCertainPrefix(string prefixText, int count)"

what is this ? is this method they are given (i.e u r database layer developer)

it is wrong .we must send department name to database query is must

or

send department name concadinating with name

like this

u selected software department

and u type john

send to this method as sofware+john as a one string .

change query to saprate that string

it is not suitable to u let inform briefly

Thank yousudhakargroup。

Maybe I didn't express myself clearly.

Anyway I have found the solution for this problem. The Ajax toolkit developer have left another overload method have a "contextkey" parameter, the type of it is STRING, so you can assign this parameter either in client or server side and pass it to the webservice.

Since it is a string, so you can pass almost everything, that's really great!^_^