Javascript To Set An Selected Index For RADcombobox To 0?

Aug 23, 2010

need javascript to set an selected index for RAD combobox to 0

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I have placed HTML 'Select' control on aspx page and it's items(options) are loaded dynamically using javasvript. The items in dropdown appear properly on web page. But when I select any item from dropdown, it's selected index is not returned in aspx.cs file. In fact, it shows selected index as 0 and size of 'Select' html control as -1. I have inserted the javascript(which inserts items in dropdown) in body tag. I also tried by calling javascript function on Body onload.

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In ASP.NET, I can get the selected index of dropdownlist using:

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Is there anything about my code below that would prevent the client event "OnClientItemsRequested" from firing? I have a couple RadComboBox elements on a page that sometimes get into a state where they load nothing and don't fire the "OnClientItemsRequested" event. Is there anything I could do to FORCE this event to fire?

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[Code]....

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How to get the selected item from the listbox in the selected index changed event. I tried: Label1.Text = ListBox1.SelectedItem.Text; It is giving me object set to null reference.

foreach (ListItem item in ListBox1.Items)
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I have two control page in my aspx page. first one left side "tree view",second one right side " form design".Form design will change based on tree view selected index changed.i have 4 level child node(site, master , slave, space). I have seperate forms to each level of node.

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now i need how to auto selected index change to tree node.

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I am binding months to a list 0-13 items default selection is 0 months duration, and years 0-8 items and 0 years is the default selection.As I know there are always going to be 12 months in a year, I could use selectedvalue or selectedindex without any perceived problem. Is there a reason why I should not use either/or of the two properties to select a list item?

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I want to display whatever i select in the listbox into a label.

I thought it was as simple as this but nothing seems appear.

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Selected Index Not Changing

Dec 5, 2013

I have a couple pages that are all pretty similar. Each of these pages consists of some number of views. Roughly speaking the first four views on each page are the same. The first page has a listbox and a textbox, then next several pages have listboxes. Because these views are the same between all the pages, and because the code behind them is the same, I built up the first page and got it working, then copied and pasted the information over for the other pages. The pages all differ in what the textbox does, but the listboxes are all identical in every way.

So, what I am seeing is that the original page works perfectly. When I go to any of the other pages, the behavior is bizarre. I was a bit surprised to find when the SelectedIndexChanged event was raised for the listbox, but it's fine. In the SelectedIndexChanged event, some minor stuff needs to happen as long as the selectedIndex is not -1. I am getting the SelectedIndexChanged event when it should happen. I see this by putting a breakpoint in the event handler. The SelectedIndex is ALWAYS -1. I can't get the SelectedIndex to be anything else, though it works in the original page from which the code was copied.

Naturally, I assumed that I had overlooked some change in the copying and pasting. That doesn't appear to be the case, but it still makes the most sense. The event is triggered by a change in the selectedIndex on the page that is currently loaded. However, the SelectedIndex hasn't changed because it was -1 and is still -1. The SelectedItem is still nothing, as it was before. There also isn't any problem that I can find with the copying and pasting. I even tried renaming two of the listboxes on one of the pages so that they would be truly distinct from the page that was working (different ID, which shouldn't matter since they are different fields). This had no impact. Nothing I can do will cause the SelectedIndex to be anything other than -1.

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Dropdownlist Selected Index Changed Using C#?

Oct 12, 2010

i have 2 drop down list..first for city and second for state i want to fill the state list when the city is selected...m using the code

protected void Ddl_SelectedIndexChanged(object sender, EventArgs e)
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ListBox Always Returns First Value (-1 Selected Index)

Feb 19, 2011

I have two ASP.NET ListBoxex in a usercontrol.

databinding event fires once. i am sure and i did trace.

but listbox always returns first value !

it is strange for me.

and i don't know how to fix it.

[code]....

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AJAX :: Get Accordion Selected Index?

Feb 12, 2010

I have used an accordian extender in my page as

<cc1:Accordion ID="Accordion1" runat="server" AutoSize="None"
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<Panes>

[Code]....

In normal case both header texts (More search options and less search options) are visible.I want only one header text is visible at a time.ie;either more search options or less search options.

can we write code in accordian selected index changed?

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Dynamic Handle The Selected Index Changed?

Sep 15, 2010

1) Accpet the item in TxtItem in comma seperated values like (Apple, Mango, Orange etc.). Store that item in array object (objArray) in acending order."

2) Create the object of the dropdown list objDropDwon on runtime and fill its items from objArray."

3) Create server side table and add rows on runtime."

4) Add objDropDown to the each row of the table."

5) Handle Selected index changed event. Display the current selected name on screen

Note: give me code guide how can done 1 to 5 step.

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C# - AJAX CascadingDropdown - Setting The Selected Index

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I have a CascadingDropDown on an ASP.NET page. Now, the prompt text is "Select State". (list of states). However, on a different version of this page (ie querystring), i might want to set the selected index to "California" for example. How can i do this? The web service used by the ajax control (ie GetStates) gets invoked at the same time the jquery document.ready function is triggered (ie asynchronously).

So when i try and set the selected index in jquery, the items are not yet bound. Is there a way to attach a handler to the ajax dropdown so that i can set the selected index once the webservice call has completed, and the items are bound?

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Dec 17, 2010

i am using asp.net, c#. I want the selected index for the current row which is selected by the user.

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Im having an hidden field.whose value is set when selectedindex change of dropdown.but im not getting its value.Im getting it if i set it on page load.

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I am using SelectedIndexChanged in the DropDowList and it works fine and populates a GridView based upon a site selection.

Is there there a way I can reset the SelectedIndexChanged so if user wants to refresh the GridView they would open the drop down list and click on the same selection again?

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VS 2008 / Unable To Get Selected-index Of DropDownList?

Jan 26, 2012

I am populating a DropDownList from a text file (class requirement).

The file is read in the Page_Load method and the DropDownList is populated then.

When I press the Submit button, throughout the process of the code it is supposed to get the SelectedIndex and use it to grab a value out of a List(Of ).

The thing is, nothing is ever passed through. I even setup an alert box and it passes right over the alert box and never even triggers it, but gives me an Index out of range error when it moves to the line right after the Alert.

Code:

Redacted to keep people from stealing classwork.

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Datagridview Selected Cell Row Index & Column Header

Oct 21, 2010

i want row index & column header(index) of the selected cell of datagrdview, all colums are dynamic.

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Web Forms :: ListBox Selected Index Changed In A TabControl?

Oct 25, 2010

As you can see in the picture below i've got a Page control with inital letters which cotains a listbox showing different wood articles. When i click on a Tab, the selected tab page get's a new Listbox control with the wood articels starting with the selected initial letter.

Creating the listbox:

[Code]....

[Code]....

When i click on a item inside the listbox, following code will be executed:

[Code]....

So far, it works fine for me. But when i change the selected Tabpage, the first SelectedIndexChanged in the listbox in the new shown tabpage is not recordnized. That means i have to select a new item and click on Search = the selected Item is still the item i selected before i changed the tab. Then i select the item again and click on search the index changed is recordnized. So why do i have to click two times on search to get the new selected item after a tab page changed?

Here is the full code:

Searchpanel:

[Code]....

The WC_WoodList

[Code]....

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AJAX :: Datalist With CascadingDropDown - Setting The Selected Index

Dec 21, 2010

I have looked high and low and have not found what I need or found something that could work but it was old and did not work. I have a datalist (in an update panel) that contains 2 dropdownlist (Categories and Sub Categories) being populated by CascadingDropDown. What I want to do is set the selected index of the First one to the value I get from the Database after populating it in the web service. Then based on that I would like to adjust the 2nd dropdown for the new selected index. Here is the ui code

[Code]....

I saw a post about CascadingDropDownProperties using Atlas but I cannot seem to find anything about the AtlasControlKit anymore (is it part of AjaxControlKit?)

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C# - GridView - Set Selected Index By Searching Through Data Keys?

Mar 17, 2010

I have a GridView which has DataKey[0] as productId. If i have for instance productId = 54, is there any way to search through all GridView item and set as selected the one who has DataKEy[0] = 54?

For a drop down list i have :

ddlProducts.Items.FindByValue(lblProduct.Text.ToString())).Selected = true

Is anything similar for GridView?

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