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Posted by / 01-Feb-2021 09:00

Rowupdating dataitem null

Ive tried peeking in the cell controls in the debugger and its just not there. Ive duplicated it in a simpler test page, with a test database.

If I call the Bind Grid() at the start of Row Updating then the Drop Down List is available, but the selected Value is lost.

Unfortunatley, I can't drop the dynamic creation, as this app is used to maintain three different systems, and being defined by an XML configuration file, means that the page can be used to maintain multiple tables.

After investigation, it looks like the Selected Index Changed is not called because on the postback with update, the Drop Down List doesn't exists, therefore the event doesn't exist.

I have therefore added the relevant xml, and when creating the grid, create the column as a Template Field and the Edit Item as a Drop Down List with its own Sql Data Source.

So far so good, this all works, the grid is displayed, the Drop Down List appears, filled with the correct data, shows the correct initial item and lets the user select another. The when trying to get the value from the Drop Down List in the Row Updating event, I cant find it. I create a Recursive Find Control method that ran through every control on the page, and it cant find it.

Let me just start off by saying that I am familar with the normal Data Item = null during a postback when the grid is not being bound. I am actually in the Data Bound event of the grid (meaning it was just bound) but the Data Item property is null. Here is a code snippet: The first time your Grid View is databound... but from there, you're Grid View is rebuilding itself from the View State... Assign the columns that you want your Grid View to "remember" by doing this: Then you can do grd Effects. Now I need to "refresh" the gridview without refreshing the page otherwise the content will bounce back to what it was originally, is there a way to update my gridview when I click select but only the gridview? When I use the same code against a Grid View that has its Data Source as an Object Data Source (the ODS returns a Data Table) the code fails because the Grid View. Is this expected behaviour for a Grid View that is attached to an Object Data Source or is there another way to access the original Data Source of a Grid View in the Row Created event? Gridview control embedded in another gridview control I am writing an ambulance crew scheduling application on the web and I need some help completing the last part.

is automatically populated with appropriate templates/input elements. Thanks in advance Martin I solved the Row Data Bound causing the null because it was firing for the header of the grid but now i have a similar problem for the Row Updating event. Andwhen one of these command buttons is cliked it must go to proper page. Data Item I have a nested gridview where I am having filtering problem on gridview2. When using a Sql Data Source in Data Set mode, the row of data is Data Row View which can be cast from e. I wanted to handle the event Row Data Bound where i could access the data bound to the row and set a field to a custom value. Anyone know why or how to fix this or an alternative method for accessing the data other than selecting it from the database again? Data Item, "username"), String) Nothing Then Dim kelime As String = CType(Data Binder. However, Command Arguments come from database to linkbutton. Through the Eval("Property") method I can display any property of the object on the Gridview just fine, however when I need to respond to the Grid View_Row Data Bound event and dynamically handle some information from the object, I don't know how to access the data contained in the object. A little history is in order: I have a value that I am retrieving from the DB2 database to populate the initial value in the dropdownlist. Then I have to load that dropdownlist with values from another table to show the available values that this DDL c...merge cells in gridview on row databound or rowcreated event add empty columns to the end of gridview i want to merge certain gridview row based on value of field say levelid at first when page load and data is bind to grid it merge the cells but when i click a button outside the gridview and do postback it add 3 empty columns to the end of the grid , please help in which event do i have to write.

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