Forms Data Controls :: GridView RowCreated Event And Controls On The Page?
Mar 10, 2011
I am experiencing a problem on my aspx page.I have a web form on which the user fills in a basic form: date (with drop down lists), an asset class (with a radioButtonList that is bound with en Enum) and other simple controls...The, when the form is submitted, I make a query on the database to retreive my data and bind these data into a gridView.Here are some bit of codes
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Knowing that AssetClass is an Enum:
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The 1st time I submit the form everything is working well, the second time theGridView1_RowCreated fires an exception when the property AssetClass is called. The error message isMust specify valid information for parsing in the string. This is becauserblAssetClass.SelectedValue is empty, but I don't uderstand why.
When a gridview is rendered, its RowCreated event is called. When it is called, what is contained in the second parameter which is of type System.Web.UI.WebControls.GridViewRowEventArgs ?Means, which type of information can we get from that ?
have a GridView.I need change the value for a Label inside a GridView programmatically.I user this code but does not work. I am not able to Find the Control.My questions is _RowCreated event fire BEFORE the Controls are rendered?If yes, which Event shall I use?
i hve removed certain columns from gridview based on a cell value in rowdatabound event .. for the first time .. but when i click some other button on the page it creates post back and the removed columns come bak in the grid.. i tried to do the same in rowcreated event but with the same result...is there some other way to do it ..Here is the code segment..
So I have a GridView control with autogenerated column set to true, it also has autogenerated Edit and Delete buttons, sorting and paging, and also I am binding this same gridview to multiple data sources at runtime. All is working well.
Now I am adding a dynamically generated footer row at runtime. This footer row will allow users to add new record regardless which data source it binds to. So it is working as well except there's a small bug I couldn't figure out why. It's when I navigate to the last page of the gridview, if the rows on the last page is less than the page size, for example, I have page size 10 and the rows in last page is 9, then when I click the 'Add' linkbutton, the Add event does not fire, instead, it fill the last page with additional blank rows, that means if the last page has 5 rows, it will fill 5 blank rows below, if it has 9 rows, it will fill 1 blank row below. Then if you click the add again, it will work. If the last page already has 10 rows then, it works just fine.
Below is the code I used to dynamically add footer row:
I am using grid view with row "data bound event" at row row data bound i am using some function with loops to fill drop down of grid view in template columns. grid view gets populated with selected index change event of drop down. my problem is the asp.net page is getting slower i mean when grid populates its taking some time and some time page get hanged what to do to get rid of it?
I have a page on which everything is loaded dynamically.
There is a Gridview (AutoGenerateColumns=true) and in the RowDataBound I check every column for a boolean datatype. If found I add a checkbox (autopostback=true) to the cell and register the CheckedChanged event. The problem is, that I only get the CheckedChanged event, if I reload the grid in Page_Load:
why the gridview RowDataBound event fires during a select command. I only expect it to run when the gridview is being populated with data. Is there some way to stop it from running when the select command is triggered?
I have a dropdownlist outside the gridview control. My griview control also have dropdownlist in the first column. I want to populate the dropdownlist inside the gridview control for all rows when the selected item is changed in the outside dropdownlist.
Iam develoing web application using csharp on visual studio 2008. Now I have a problem. When I want to get a record or row on Gridview when I click on it Iam not getting. But on datagrid it is working.How can I achieve the same on Gridview. I want when I click on the Gridview Record a get a value put it in a session the use it on another page.The code Iam using is below.
I have a gridview,sqldatasource and a link button for delete in the sample code below
When Delete is click the confirmation pops up. When I confirm yes, the rowdeleting event doesn't seem to be firing. I addeed a label to see if the event is firing. To avoid runtime errors I added a dummy but actual sql delete command. Once If I get it to work, I want call a stored procedure to delete the row.
My question is
1. Why is the gridview row deleting event not fired.
When a Gridview row is in edit, I need to default an empty textbox to today's date. I am close, but the defaulted date is is not saved to the database. I can key in the date and the date is displayed and saved to the database. Even more interesting:
1. The date is defaulted to - 5/17/2010 2. If I erase the month and key the "5" back in the data is not saved. 3. If I erase the month and then change the month to "6", the data is saved to the database. If any value is changed in the date the save works.
I have a very simple page that consisist of an UpdatePanel that contains a gridview. The gridview includes a delete button for each row, which should fire the Delete event. But the event never fires. If I set a breakpoint inside the event handler, it never gets hit and the row does not get deleted. When I say OK on the confirm dialog it just goes back to the page. I tried taking out the confirm button extender
i use a wizard in my page the first step contains a Gridview.
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It runs very well until i use the Gridview paging. In this case i get following error-message."Unable to cast object of type 'System.Web.UI.WebControls.Wizard' to type 'System.Web.UI.WebControls.GridViewRow'." If i use this code to get the gridview-rowDim row As GridViewRow = _ grid.Rows(Convert.ToInt32(e.CommandArgument)) paging runs, but i cannot use the commandDropdown.This is my control. I use commanddorpdown [Code]....
I have downloaded the Control form this page. [URL]19606_On_ASP_NET_Forums_How_to_develop_a_command_capable_DropDownList.aspxHas anybody an idea to solve my problem?
I use linq query as below and bind it to listview. I have 2 label control (name,remain).I want to check in code behind if p.count<200 then remain ="Sample text1"if price <300 then "sample text2".I know that I could do it before linq in gridview RowDataBound event
Dim prod= From p In db.products _ Select New With {p.name p.category, p.count} postlist.DataSource = prod postlist.DataBind()
