Detailsview itemupdating newvalues

But I frequently don't mark it right away because I feel once a thread is marked as answered, discussion tends to end. This event could be used if you wanted to make sure that each of the items within the New Values collection was trimmed of excess spaces before updating. Updating event provides you with access to the actual parameters that will be passed to the Update Method identified by your Object Data Source.

With this, you could specify the value of a Parameter that isn't specified in your Grid View such as the current date or the currently logged-in user.

NET 4.0 (Web Forms) A snippet of code that I believe to be relevant below: The problem is that if I want to handle the old values, I can´t: this, evaluates to 0: int old Values Count = e. Count; and this, evaluates to null, even if I alter the value to a new one: string company Name Old = e.

detailsview itemupdating newvalues-56

We will bound a Details View control to a Sql Data Source for simplicity reason you can use any data source control ... After configuring the pet Shop Sql Data Source and enable update, insert and delete we set the Details View Data Source Id to our pet Shop Sql Data Source Id and so the Details View now have 3 fields bound to Category table.

To clarify this take a look into what's happen on the Item Updating event, if we checked the e. Keys collection before we set the Name filed as read-only filed we will find that this collection contains two Items: The Details View will not pass the read-only fields to the underlying data source and this is not an issue Details View designed like this.

But I frequently don't mark it right away because I feel once a thread is marked as answered, discussion tends to end. So is it just a question of whether you want to handle the event per bound control or per data source? Item Updated Is there any significant difference between these two events for making the operations like redirecting or printing a "Update successfull" messaing? I have a Grid View that uses an Object Data Source.

When it seems like you can choose either option it's hard to know what's the correct choice and why. Net, there are almost always many ways to accomplish the same thing. The first one occurs earlier than the second one, I know that, but still which one do you prefer? I've set the Data Object Type Name property of my object data source so my update method can accept an instance of a class as the parameter.

Your use of Stack Overflow’s Products and Services, including the Stack Overflow Network, is subject to these policies and terms. Note: I´m not using a datasource component in my application (Sql Data Source, Object Data Source, Entity Data Source, etc.).

I´m using a Details View but when updating, I cannot get the Old Values because the Details View Update Event Args.

Take a look to Handle Update method in the Details View control using reflector and you will find it does not include Read-only fields when extracting values from fields.

Ok, Now I'm sure this was working the other day and I don't think I've changed anything but now it's not working and I can't see anything wrong with the code.

But I frequently don't mark it right away because I feel once a thread is marked as answered, discussion tends to end. No, you will have access to the Old Values only in the Grid View. The handlers are meant to be used one after another.

If you want to manipulate your updated values, then I'd do this within the Row Updating handler.

I've put some code in the page load so that when the user enters text into the textbox it changes select command for the datasource so that the select command has a WHERE in it and then changes select command back when there is no text in the text box.

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