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Sequence itemcommand itemupdating

Copies the properties not encapsulated by the Style object from the specified Web server control to the Web server control that this method is called from.

This method is used primarily by control developers.

control we examined in the previous section is designed to display data as a table, with each row containing one data row (one record).

However, sometimes it's useful to be able to display data one row at a time, especially when there is a large number of columns or when you want to be able to edit the values of each column without using the rather cramped in-line editing mode of the .

When used on its own, however, you will need to either enable the paging feature in order to display the paging controls or add your own custom paging feature so that users can navigate through the rows.

Listing 4.21 shows a declaration of a as the previous one, though it doesn't have toif you display a different selection of columns in the two controls, you can select just the columns you need.

The link between the two data source controls, which ensures that the row selected in the control, you just add the relevant attributes to the control declaration.

The highlighted attributes for the data source control in Listing 4.25 show the It's also possible to insert a row by clicking the New link, entering the values, and then clicking the Insert link (see Figure 4.9).Notice that the primary key is displayed as a text box so that the user can enter an appropriate value.control exposes events that occur as rows are being manipulated.By handling these events you can link the controls together so that each reflects any changes made in the other.The Details View control is a data-bound control that renders a single record at a time from its associated data source, optionally providing paging buttons to navigate between records.It is similar to the Form View of a Microsoft Office Access database and is typically used for updating and inserting records in a master/details scenario.The Details View control binds to any data source control and executes its set of data operations.It can page, update, insert, and delete data items in the underlying data source as long as the data source supports these operations.In most cases, no code is required to set up any of these operations.You can customize the user interface of the Details View control by choosing the most appropriate combination of data fields and styles in much the same way that you do with the Grid View.Finally, note that although the Details View is commonly used as an update and insert interface, it does not perform any input validation against the data source schema, nor does it provide any schematized user interface such as foreign key field drop-down lists or made-to-measure edit templates for particular types of data.


  1. When I attach a fileto the SPListItem, it always run the ItemUpdating method In the ItemUpdating method,I update the SPListItem properties. Status.

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