If the grid contains templated columns or is bound to some of the fields from the data source, the Values and Old Values must be updated to add those missing values.Otherwise missing cells will be nulled out by the auto update operation. The dictionary consists of the new values to be set on the row's unbound cells. There are multiple ways in which one can get the data from the current row that is being edited in a Grid View. Using "Extract Values From Cell": This is an easy way to get all the values from the current row.
The hashtable contains former values of the row's cells.
Please help me with writing a Row Updating function in C#, I don't know how to grab the current field's value and also get the old value for one of keys (which is Project Name for editing) of the selected row. the idea wa to don't allow binding the grid view after a post back.
hello my problem was that my gridview editable controls heep their old values. this is due to the grid view binding in the page_load method after every post back.
First, I load up some data: After that, I’m doing some work to make my Grid View look beautifull, adding all columns by hand.
But for this demo, I’ll show you the simple version, that also doesn’t work 🙂Let’s bind the data to our Grid View and have it autogenerate our columns, as well as an edit button.