Complete a brief survey to get a complimentary 70-page whitepaper featuring the best methods and solutions for your virtual environment, as well as hypervisor-specific management advice from Tech Target experts.
Net Grid View with one Bound Field column, one Template Field column with a Label and one Button Field column which consists of a Select Button to select the Grid View Row.
Yesterday I presented my messaging presentation again, organized by Blaak Selectie and Betabit.
The following stored procedure demonstrates how to insert a row into the Categories table and use an output parameter to return the new identity value generated by the Transact-SQL SCOPE_IDENTITY() function. NVar Char, 15, "Category Name") ' Add the Sql Parameter to retrieve the new identity value. The stored procedure can then be specified as the source of the Insert Command of a Sql Data Adapter object. It looks as though you can't use keys if you are using templates fields or if you are not using the built in data controls.I haven't had time to verify this but that seemed to be the case from reading this.Relational database engines, such as SQL Server, Oracle, and Microsoft Access/Jet support the creation of automatically incrementing columns that can be designated as primary keys. The row is updated, but the original values in the row are preserved. Dim adapter As Ole Db Data Adapter = New Ole Db Data Adapter( _ "SELECT Category ID, Category Name FROM Categories", _ connection) ' Create the INSERT command for the new category. Insert Command = New Ole Db Command( _ "INSERT INTO Categories (Category Name) Values(?
These values are generated by the server as rows are added to a table. Write Line("List All Rows:") Dim row As Data Row For Each row In categories. Write Line(": ", row(0), row(1)) Next End Using End Sub . Row Updated, New _ Sql Row Updated Event Handler(Address Of On Row Updated) ' Update the datasource with the modified records. Update(data Changes) ' Merge the two Data Tables. In the main body of the procedure, the Merge method is called to merge the new identity value into the original Private Sub On Row Updated( _ By Val sender As Object, By Val e As Sql Row Updated Event Args) ' If this is an insert, then skip this row.
In my High Availability article I mentioned business components and questions were asked in the comments, what these business components actually are.
This post is a follow up to my previous post about the autonomy of...
However, you might end up with duplicate values in separate instances of a Data Table, if multiple client applications are independently generating automatically incrementing values. New Row() new Row("Category Name") = "New Category" categories. How the command results are applied to each Data Row being updated is determined by the Updated Row Source property of each Db Command.
Having the server generate automatically incrementing values eliminates potential conflicts by allowing each user to retrieve the generated value for each inserted row. Dim categories As Data Table = New Data Table adapter. This property is set to a value from the and using a Sql Data Adapter to update the data source and retrieve a new identity column value.
Some really interesting questions from the audience, showing insight into...