Gridview editing updating deleting in asp net

In this article however, I'll show you how a Grid View control can be used to update (edit), delete and insert data in a remote SQL Server table. Attach the Grid View with the Sql Data Source control, the way we have shown the link above.

We configured though the Edit Item Template of the Template Field, to contain two other Link Button controls, with Command Name “Update” and “Cancel”. If so, i just disable the linkbutton and finally, you can’t press it.For example, when editing a date field, users will be less prone to error selecting the date using a Calendar Web control, rather than having to type in the date in a Text Box.Figure 44 To add validation controls to an Edit Item Template, simply drag and drop the appropriate validation controls from the Toolbox into the Edit Item Template.They work in similar and respective way as the “Edit” command. Go to Grid View’s code add a handler for the On Row Data Bound like this.I changed the background color to display the textboxes better. In my case, because the Id column of the Genre table i picked from the database, is a foreign key for another table, called Review, if i click the Delete linkbutton, i will receive an exception telling me a constraint is violated. If it was to through an exception, I would like to know it somehow so I wouldn’t press the damn button. First of all, I want to know if and how many reviews are attached to a Genre. Id) AS Number Of Reviews FROM Genre LEFT OUTER JOIN Review ON Genre.

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