Gridview rowupdating dataitem null
event is raised when a row's Update button is clicked, but before the Grid View control updates the row.This enables you to provide an event-handling method that performs a custom routine, such as canceling the update operation, whenever this event occurs.
I believe it is because of the fact that your performing a delete operation and it's not needed.If you want to read about my take on the Data Item being null in Insert mode on the Details View and Form View, you may read the following blog post : a side note, i find your design quite flawed, in that you need access to the Data Item in order to perform a delete.You may want to redesign and take a new approach, perhaps one that didn't involve your delete method being tightly coupled wiht your Data Item ?Trying to find out why when I run a stored proc my gridview is not passing all of the parameters. In the code below, I added modified Date to Data Key Names and the parameter data is passed.If I add that field to datakeynames, it passes the data. Removing it from Data Key Names results in a null value being passed. I have a relatively simple gridview bound to an product table that displays great. When I do so, the gridviews' Row Data Bound event fires and the values of the text properties of the tablecells in the row evaluate to "" emptystring.
Text properties of the cells resolve to "" Here is the code for the event, followed by the gridview in the form (inside an updatepanel) Protected Sub Grid View1_Row Data Bound(By Val sender As Object, By Val e As System.
A common way to use these collections is to HTML-encode the values supplied by the user before they are stored in the data source.
How can I get the underlying Data Item from a Grid View row that is in edit mode and the user clicks on "Update"? I've added a Custom Validator to the Edit view of one of the columns.
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.
(it's actually 2 different databases) Now my problem is, when I click select on my top datagrid the bottom one doesn't update (by default, it selects the current year). Grid View Row Created event when using Object Data Source... However, in all of these cases the Data Source I used for each Grid View had always been a Data Table.
I have a Grid View and I set the Data Source to an array of custom objects and call Data Bind() in the Page_Load (every time postback or not).