Forms Data Controls :: LinqDataSource Selecting Event Fire Twice?
Sep 23, 2010
In my web app, I used LinqDataSource, ListView and DataPager (.NET 3.5 sp1) to implement search feature with paging. I have a button to trigger the search.
But In the first time, the Selecting event of LinqDataSource fire twice and I don't know why (I debugged my code very carefully). I don't use QueryString with DataPager and assign PageSize of DataPager in the first time of page load to prevent the ListView bind again (as in some instructions I found in forum)
I can't post my code because it's quite large.
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Similar Messages:
Sep 23, 2010
in the selected event it seems even though e.TotalRowCount really is the total row count, when I cast e.Result to a type in order to access the actual data only the current page of data is there? not all.
IEnumerable<InventoryGridItem> items = (IEnumerable<InventoryGridItem>)e.Result;
items only has the 15 records for the current gridView page, not all the records, is this normal? If I need to access all the items in the result do I need to stick with the selecting event instead?
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Mar 19, 2010
I have a repeater using a LinqDataSource as a data source. When a query string is entered, I'd like to filter the results, but ONLY when a query string is entered. If there is no query string, the results should not be filtered, all results should be returned.
I'm trying to add a WhereParameter to my LinqDataSource in the Selecting event of the LinqDataSource, but it's not working. Here's my code:
protected void ldsImages_Selecting(object sender, LinqDataSourceSelectEventArgs e)
{
if (Request.QueryString["id"] != null)
{
e.WhereParameters.Add("ImageTypeID", Request.QueryString["id"]);
}
}
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Sep 3, 2010
I have one Datagrid with Footer. Footer Row Contains Input fields with one Button to add New Values. I have button click event but not getting fires. my code follows:
[code]....
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Feb 11, 2010
In one webpage,
There is one updatepanel in that one gridview,
there is one dropdown in headerrow of gridview,
dropdown's selectedindexchanged event fire in FireFox but not in IE.
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Jun 4, 2010
I have below code: I don't know why DataGrid1_ItemCommand does not fire event.
[code]....
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Dec 29, 2010
Kindly, see the following image. This is my Gridview with separate paging on the top right of the image. The arrows are Image buttons and the right text box is read only.[URL]
I run my page for the first time everything runs perfect. I move to other pages of the grid still perfect. Then i move to other aspx page and then come back. The page loads perfect with the old page number there still perfect. Now if i press any image button then the text change event fires which should not fire.
Note: i need the text change event as i user randomly enters something in the text box then i have to handle that.
Example:
When i return from the other aspx page then the value in the Page Number text box is lets say 4. Then i press the Back image button and a post back happens. The Value in Text box is still the same 4. Then y the event is firing ???
I am not understanding that why this event is firing. On the page load, i retrieve the values from hash table (The hash table is stored in session in base page) and from the hash table i get the pageNo and assign it to the page No text box.
Here, is my one of the image button event. (Remaining image button events are almost same)
[Code]....
My text box change event.
[Code]....
My page load Code: Note: PageUniqueIdr = PageUniqueId retrieved from the QueryString.
[Code]....
[Code]....
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Dec 6, 2010
i am able to make clickable rows in datagrid, now i want to fire an event wen any row in datagrid is clicked.
Now my code can give the alert box,showing the row index, when clicking on the row in datagrid. here is the code
[Code]....
my datagrid contains columns (id,fname,lname)
wen i click on any row, it shud take "id" of tht row nd execute the sql statement nd show the output in the panel..
1) How can i fire an event upon clicking on the row
2) How can i take the datagrid field value to use in my sql statement
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Jan 24, 2011
in my webpage gridview is there in that gridview gridTags_Updating event is there.when am keep a breakpoint inin that event will not fire as well as when am clicking update button gridview is disappear
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Feb 13, 2010
1. I have hat asp. page
[Code]....
2. I have that BLL
[Code]....
and I have that cs code behind page:
[Code]....
THE LAST METHOD _insertin is NEVER FIred UP. The Update pases correctly ands I will not give the code for the object data source.
My purpose is to include code into on insert code that assign value to a column .
Can you take a look. I'm novice to ASP.net .I'm A DBA and would like to Use ASP for UI to May database. I dont have the goal to become profesional in that field.
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Jun 28, 2010
I'm with asp C#.net , how do we fire an on click event in Datalist
my code is like..
<asp:DataList ID="DataList1" runat="server" RepeatColumns="5" RepeatDirection="Horizontal" RepeatLayout="table" Width="1px" BorderStyle="Solid" >
<ItemTemplate>
<a id="anchor" runat="server">
<img id="img" style="border: none;" runat="server" src='<%# Eval("SubImgPath") %>'
alt='' height="100" width="100" />
</a>
</ItemTemplate>
</asp:DataList>
How can I do on click event in order to load images using an Id.?
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May 13, 2010
I have an repeater with two buttons. I tried two different ways to make a click event on the two buttons. Neither of the two ways function. They do both the same. No errors but the repeaters content disappear.
My repeater:
[Code]....
As you can see, onbtnForumGroupsDebateListEditDebateAdm I tried to use the repeaters ItemCommand
the code for this here:
[Code]....
Then I tried to do a simple OnCommand instead
The code for this is:
[Code]....
I tried to make a "run to curser" and can see, that I don't get into the functions.
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Mar 19, 2010
I've got a GridView control with LinkButtons in different cells. Currently when someone clicks a link, it fires the ItemCommand passing the CommandName and the ID of the item the link is bound to. That all works fine. I need to modify it now to not use links anymore. It now needs to show a popup balloon with a link (styled to look like a button) and when the link is clicked, I want it to do the exact same thing. I'm sure there are several ways of doing this, but for time's and consistency's sake, I'm copying the method used from another page we have that is already doing this. It has a hidden DIV on the page with the link in it. When you hover over a link, javascript repositions the div and makes it visible.
So what I need to do is pass my CommandName and item ID to the javascript so that it can trigger the postback when they click that single link. I know this is not the only way to get to the end result, but what I want to do if possible, is still fire the GridView's ItemCommand and set he DataListCommandEventArgs' CommandName and CommandArgument properties. Can someone explain how, under normal circumstances, clicking the LinkButton in the GridView fires the ItemCommand? I know that the LinkButton's click event is forwarded to the GridView but what gets sent from the client side that let's the server know the link was clicked?
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Apr 20, 2010
I am populating an asp.net listview control from my page_load event. Unfortunately, due to my projects requirements, I have to use a third party control within my listviews ItemTemplate that needs to have database values written to its attributes before my listview control is bound, if this is not the case my control flags a null reference exception error. From some investigation into the listview control, it seems that the only way to do this is through my listviews ItemDataBound event as my thrid party control will hold different value depending on each row.was wondering if it's at all possible to force my listviews ItemDataBound event to fire before I call mylistview.databind();?
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Jun 18, 2010
how do i fire the itemdatabound event for a repeater control which is nested inside a another repeater control
code is in vb.net
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Dec 21, 2010
I am working on an ASP.NET web application using .net 4.0 and VS2010.
I have a GridView and I am appending a row at the bottom to allow users to input data for "Adding" a new record.
The ONLY way I have found for this to work is to do this in the RowDataBound event of the grid. I can check to see if it is about to process the footer row then I know I am at the bottom and can insert this new row.
The row I am inserting contains a couple of TextBoxes and a LinkButton for the "Add" link.
If I just drop a LinkButton on my form and hook up the click event and I click the link button then the first thing that fires is the Page_Load event then my click event. However what is happening when I click the link button that was dynamically added to the GridView is the Page_Load event fires but the click event never does.
I have read 1000 threads saying to try to create the controls in the preinit() or some other event. In my case I can't. Or else someone would have to explain how to add the row to the bottom of the databound GridView.
Here is my code: (I removed creating the Textboxes because that is not part of the problem.
[Code]....
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Mar 29, 2011
I hv following Gridview inorder to update records in DataTable, but control event onRowUpdating is not active even if if update link press i.e.
[Code]....
I hv following CodeBehind in VB for OnRowUpdating i.e.
[Code]....
But above code does not fire, I Put debugger on GridView1_RowUpdating but control does not active that module
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Nov 24, 2010
i have a grideview which their is a LinkButton control i want to wite some code in that event i i do that. I am providing the code for better understanding
[Code]....
Code Behind
[Code]....
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Mar 5, 2010
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?
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Oct 4, 2010
I have a modal formview with insertitemtemplate. I have to click the insert button twice to fire the event.
But if I do not insert any values, only one click is required and the validationgroup fires. But if I enter all valid values, I need to click twice and the event does not fire during the first click. But I need CausesValidation = false because to required field validators.
How to avoid two clicks to fire the event if the formview is valid
[Code]....
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Dec 23, 2010
I have a datalist that loops thru cart items. Within the datalist template I call a user control that has a small form that gets repeated for each item. When this control is called outside of the datalist, the form submits fine, but when called within the datalist the button has no event action. I've tried adding an event handler to ItemDataBound of the datalist, but still no event action. How can I get my form to submit?
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Mar 29, 2011
How to fire a button click event inside a grid view.
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Nov 9, 2010
i have a repeater with a button in the footer template which i want to be able to update any of the items that are added (update quantites/totals/delete the item).
however the 'UpdateOrderDetails' event never fires when the button is clicked.
here is the code within the repeater...
<ItemTemplate>
<tr>
<td>
<asp:CheckBox ID="chkDelete" runat="server" />
<asp:HiddenField ID="hidProduct_Key" runat="server" />
[Code].....
but this procedure is never called when the button is clicked, so wondered what i need to do to get this working
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Jul 14, 2010
While writing a web application Using MS Web Developer 2010 Express, I noticed a rather disconcerting behavior of the asp:DropDownlist control.When using databinding and you assign a DataValueField the selectedIndexChanged does not fire or change unless the value of the DataValueField changes no matter what the value of the DataTextField. This means that if I have several different text values(States/Provinces) with the same datavalue (US/Canada) I cannot fire an event if the text changes (the textchanged does not fire either) as long as the datavalue doesn't change (all States are US all Provinces are CA). This would seem to be a counter intuitive behavior?
[code]...
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Dec 24, 2010
I have a dynamically loaded usercontrol
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="ucEditPanel.ascx.cs"
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