Get datakey value gridview rowupdating updating old bookcase
element and have added a Details View to allow users to add a new category and upload its brochure and picture data.All that remains to be implemented is the ability to edit and delete existing categories, which we'll accomplish in this tutorial using the Grid View s built-in editing and deleting features. Update, true)] public bool Update Category(string category Name, string description, string brochure Path, int category ID) that listed all categories in a Grid View and provided a Details View to add new categories to the system.This would require an extra trip to the database to bring back the picture data for the record being edited. Choose No, because choosing Yes will overwrite any field customizations you may have made.After configuring the Object Data Source, add deleting capabilities to the Grid View by checking the Enable Deleting checkbox from the Grid View s smart tag.After adding the two event handlers, run this test case again.When deleting the category, its associated PDF is also deleted.
To test this functionality out, add a new category, providing both a brochure and picture.
These are the methods that will be invoked from the Presentation Layer. The rationale behind using two methods is that in some circumstances, a user might want to update the category s picture along with its other fields, in which case the user will have to upload the new picture. To remedy this, click on the Configure Data Source option from the Object Data Source s smart tag to launch the wizard.
The uploaded picture s binary data can then be used in the column as well, then we d need to provide that information as well. The first screen shows that the Object Data Source is configured to work with the Note Upon completing the wizard, Visual Studio may ask if you want to Refresh Fields and Keys, which will regenerate the data Web controls fields.
My test category, shown in Figure 6, includes a test brochure file named and a test picture.
Figure 7 shows the Grid View after the test category has been added.
Step 6 explores techniques for updating the brochure information while Step 7 looks at updating the picture.