Forms Data Controls :: ListView Select Button Does Nothing And SelectedIndexChanged Never Fires
Jun 19, 2010
I have a listveiw populated from a List<> in the code behind using the following code:
SubId = Convert.ToInt32(Request.QueryString.Get("SubId"));
using (JodyCoryDataContext myDataContext = new JodyCoryDataContext())
{
var SelectedRings = from jewlery in myDataContext.Jewleries
[Code]....
The page displays the images from the list<> and button ok but nothing happens when i click it other than postback. Furthermore even when i set up a test button wich changes the ListView.selectedindex the ListView.SelectedIndexChanged event never fires even though i can read the selected index and see that it has changed.
I'm guessing that it's something to do with using a list<> from the code behind to populate the listview but i must confess to being completely clueless.
I have two buttons in a list view that adjust the position of that item, basically, moves it up or moves it down. Both buttons have the CommandName="Select" so I need to know if their ID is somewhere in the EventArgs so I can tell if the Up or the Down button was pressed.This is my temporary sol'n, maybe it'll give you a better idea of what I mean to do.int s;
public void iBtnUp_Click( object sender, EventArgs e ) { s = 1;
[URL]Initially if I make a selection it will automatically post back and firecboItemsPerPage_SelectedIndexChanged. If I then post back by clicking one of the other buttons on the page, cboItemsPerPage_SelectedIndexChanged will continue to fire, despite the fact that the value has not been changed.I want it to be postback only when selected index is changed, not in every postback
I have an ASP.NET DropDownList with AutoPostBack=true and EnableViewState=false. I have a button on the page that does nothing. If I change the selection in the ddl, it posts back , which is expected. If I click the button, the page posts back and the ddl's SelectedIndexChanged fires. Why does it get fired?
I ask for a date, on OnTextChanged event i bind data with a SqlDataSource to a dropdownlist and also bind data to a repeater passing the dropdownlist SelectedIndex (i use SqlDataSource too and ControlParameter to link the dropdownlist and the repeater) On my repeater during the ItemDataBound event i create dynamic dropdownlist controls, my code is :
[Code]....
[Code]....
On the Page_load event of my page i bind the data & recreate the control :
[Code]....
Everything works fine, datas are bound and SelectedIndexes are restore on every postback.
The probem occurs when user change different dropdownlists, if he choose to change the 1st dropdownlist the event is fire (normal), after if he modifies another dropdownlist the event is fire twice, if he modifies a 3rd time the event is fire 3 time etc...
on SelectedIndexChanged event handling of DropDownList in ItemTemplate of ListView. I put OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" in mark up, with code behind, but only to get Compiler Error Message: BC30456: 'DropDownList1_SelectedIndexChanged' is not a member of 'ASP.webform1_aspx'. How do I make it a member? When I do not put OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" in mark up, BC30456 does not pop up, but nothing happens when dropdownlist selected item is changed.
I'm using VS2008. When a dataset is bound to the DataSource of a ListView, SelectedIndexChanged event does not fire. If I used DataSourceID instead, it has no problem. But SelectedIndexChanging event fires for both.
why and how I can get SelectedIndexChanged event fired when DataSource is used?
I have a ListView tied to a DataSource, included in the layout is a Literal control. I want to be able for the user to click the Select button, and then I want to populate the Literal control with some Data. I have it working, but I have to click the Select button twice to get the data to show. My code is below.
how to do this when the checkbox in listview layout template check select all checkboxes in listview itemtemplate.I dont give 'Eval 'field to checkbox present in itemtemplate.
This is how i have it setup:DAL: a dbml file for the contextBLL: All my BL rulesTypes: I made type for every object that i return to my presentation layer.Now that i made types and use this structure i find it hard to understand how to manipulate data. Normally i could just bind my datacontext to a grid and just activate all the datagrid's possibilities without having to worry about anything. for example when i want to enable sorting, i have to write my own logic to return teh right rows to the grid etc.
I have a multiview with two datagrids. The first datagrid is an overview grid and has an option to select an entry. When i select the entry i switch to my second view and I want to show the details for the selected object there.However... I bound a List to the first grid and now I don't know how to find out what entry is selected. I have an event handler for the SelectedIndexChanged.
Consider the following:The SomeEvent fires as expected when any of the dropdown's selection is changed. However if say DropdownList2 has a selection made then I make a selection with either DropDownList1 or DropdownList3, then SomeEvent fires again. What is causing this behavior and how do I get just a single raising of that event?I suspect that when the viewstate for the dynamcially created dropdownlists is restored and the selection restored, then the event is fired because technically the selected index did change when the control was recreated. The reason I suspect this is that the event fires the for each dropdownlist.
I have a nested listview that I want to select the DataItem with a LinkButton or firing the ListViewSelectEventArgs, but I can't. I try the LinkButton with the sender object but a get null for the LinkButton when the OnClick event is fire and also try the ListViewSelectEventArgs to get the DataItem and again a get null for the object.
I am trying to populate the ListView using LinqDataSource data source but the issue I am having is.I need to load the listview on Search button click action.
IN the page_load I kept like this: =========================================== LinqDS.Selecting += new EventHandler<LinqDataSourceSelectEventArgs>(LinqDS_Selecting);
protected void LinqDS_Selecting(object sender, LinqDataSourceSelectEventArgs e) { e.Result = ObjectDS; } ============================================= This works fine but this happens on page load,i want this binding to happen on button click?is there a way to do this?
I have a dropdownlisbox , i am changing the selectedIndex by PageMethod(i.e it will change its value and text on checkbox status). At that time it don't fire the selectedIndexchange method but when i click the button it fires(i.e on postback).
I've implemented a ListView to display selected data from a DataTable. My listview is one row high and 4 columns wide. I've setup a DataPager to the left of it and another to the right to allow the user to access any item in the ListView.My problem is simple: When the user adds a new item to the DataTable, I rebind the data again { e.g. listView1.DataBind() }, and then I proceed to select that newly added item. BUT no matter what I try, nothing works! More precisely, I do this: listView1.SelectedIndex = #; where "#" is the appropriate index number.
I would like to know if I can do the following: when I am in insert mode, can I dynamically change the select command of and then display that result in the second dropdownlist based on what was selected in the first dropdownlist.
I would like to include the minimum code to demonstrate what I am trying to do.
I have a listview to display items from database and I need to automatically select the first item when the page first loaded, how can I do it?My listview is in one of the steps of a wizard control, and this wizard control is inside a popcontrol extender with updatepanel.
I'm using a listview control to do a survey stuff. Everything is working perfect to present the data questions, to be answered text with the different type of controls radiobuttonlists, checkboxlists, dropdownlists, etc. The admin can modify, create, change questions, answers, etc. on the survey.When it's select, edit, or insert it's easy to find the control inside a listview.However, I'm wondering how to post user's answers back to DB. How to find controls inside the listview to grab the entered data/responses from there using let's say the submit button that is outside of the listview.I believe there should be a way to do it as otherwise why we put radiobuttonlist on a listview that somebody could click it and then we should be able to get that entries. Or I'm too optimistic on this control?
How do I do this? I want to search my database in listview form with the text from a textbox or an item from a drop down list which is on another page.
