Detailsview updating newvalues empty
Old Values has all values of fields bound on template. Form View2 talks to my Activities table and has an Item Template, Insert Item Template and an Edit Item Template.
The problem is that during Item Updating event of Form View, New Values table is empty. Form View1 talks to my Opportunity table and has an Item Template and an Edit Item Template.
I want to do something simple like this: form View. Data Bind(); All the examples i've come across show a declerative data source being used. I can get the information going through the cells by parsing the html but that smells funny.
the Form View Update Event Args always has the Old Values and New Values collection empty.(Keys is too).
Figure 1 depicts this series of events and steps when updating a Grid View.
We can, at this point, cancel the update request if there is some validation error.
When the Update() method is invoked, the Updating event of the Object Data Source fires, providing an opportunity to add or customize the values of any of the Update Parameters.
Therefore, the Update Parameters collection of the Object Data Source contained a parameter for each of the method's input parameters.
If we want to provide a data Web control that allows the end user to update only a subset of fields, then we must either programmatically set the missing Update Parameters values in the Updating event handler of the Object Data Source or create and call a BLL method that expects only a subset of the fields. Specifically, let's create a page that displays just the Product Name and Unit Price fields in an editable Grid View.
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After the end user updates the data and clicks Update, the following steps are performed on postback: During this sequence of steps, a number of events fire, enabling us to create event handlers to add custom logic, where needed.