Asp net datasource onupdating
But to begin with we'll just use the above data model as-is to build our UI. NET page with a control to bind the Grid View to our data model.
VS 2008 includes build-in designer support to make it easy to connect up our Grid View (or any other ASP. To bind our grid above to the data model we created earlier, we can switch into design-view, select the Grid View, and then select the "New Data Source..." option within the "Choose Data Source:" drop-down: This will bring up a dialog box that lists the available datasource options to create.
Now that we have the basics of our web UI working against our LINQ to SQL data-model, we can go ahead and further customize the UI and behavior.
Our Grid View above has a lot of columns defined within it, and two of the column values (the Supplier ID and the Category ID) are currently foreign-key numbers -- which certainly isn't the ideal way to represent them to an end-user.
Below are the first four parts of my LINQ to SQL series: control that is shipping as part of ASP. All of the business rules and business validation logic will be implemented in our data model tier - and within the UI tier or in any of the UI pages.
This will ensure that: 1) a consistent set of business rules are used everywhere within the application, 2) we write less code and don't repeat ourselves, and 3) we can easily modify/adapt our business rules at a later date and not have to update them in dozens of different places across our application.
I can add a edit/delete button on the Grid and automatically have update support as well.declarations) or in designer mode (just click on the column in the designer and choose the "Remove" task).For example, we could remove the "Quantity Per Unit" column below and re-run our application to get this slightly cleaner UI: If you have used the control before and explicitly passed update parameters to update methods (the default when using Data Set based Table Adapters) one of the things you know can be painful is that you have to change the method signatures of your Table Adapter's update methods when the parameters based by your UI are modified.Important: The beauty of LINQ and LINQ to SQL is that it obviously isn't tied to being used only in UI scenarios - or with particular UI binding controls like the Linq Data Source.As you've seen in my previous posts in this series, writing code using the LINQ to SQL ORM is extremely clean.