The formview fired event itemupdating age range of carbon dating

The biggest drawback of storing binary data as a physical file is that your database easily can lose track of the binary data.

Details View Mode Event Args) Handles Details View_Dxpress. Please refer to the Dev Website Terms of Use for more information. Data Source = "" ' Login CC Details View_Dxpress. Insert) End Sub Private Sub Details View_Dxpress_Pre Render(By Val sender As Object, By Val e As System. ASPx Button = Nothing Dim My Insert Button As ASPx Editors. Find Control("ASPx Combo Box_DV_Edit") If Details View_Dxpress. ASPx Combo Box = Nothing Dim My Update Button As ASPx Editors. Next, add App_Code folder to the web site and add a new class in it. They represent the respective columns of the Photos table.

Notice that you have used the auto-implemented property syntax of C# to define the properties.

If you move your application from one server to another, you must manually ensure that physical files representing product images are shipped along with the rest of the application.

Also, any deletions to the database records also must be played on the physical image files.

To work through this example, you will need a SQL Server database with a table named Photos. Table 2: Schema of Photos table Notice that you have used the varbinary(MAX) data type for Photo column instead of the traditional Image data type.

You will now develop a web site that allows the users to add, modify, and delete individual records of the Photos table. If you wish, you can add a new database to its App_Data folder to create the Photos table. Listing 1: Properties of Photo class The Photo class has four public properties: Photo ID, Title, Description, and Photo Data.

Storing BLOBs directly inside SQL server provides the following advantages: In summary, depending on the application being developed, you should decide whether storing BLOB data in SQL Server is the way to go. To read BLOB data, you need to use the Sql Data Reader class of ADO. The use of Sql Data Reader class to read BLOB data can be best understood with an example.