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The Check Box Field, for example, renders as a check box whose checked state depends on the value of a specified data field; the Image Field renders an image whose image source is based upon a specified data field.
Hyperlinks and buttons whose state depends on an underlying data-field value can be rendered using the Hyper Link Field and Button Field field types, respectively.
To accommodate this level of flexibility, the Grid View offers the Template Field, which renders using a template.
A template can include a mix of static HTML, Web controls, and data-binding syntax.
Thought the Update Mothod property has been defined in the Object Data Source, how do you notify the Object Data Source to call the update method? However, I find only two two-way data-binding expressions defined in the Grid View.
In general, we set the Auto Generate Edii Button property on the Grid View to true so that we can make advantages of the automatically generated buttons.
A Check Box Field can display only a single check box, whereas an Image Field can display only a single image.From the Grid View's smart tag, choose to add a new Object Data Source control that invokes the Get Employees() method of the Employees BLL class. Add a new Object Data Source control that invokes the Get Employees() method.(Click on the picture for a larger image.) Binding the Grid View in this manner will automatically add a Bound Field for each of the employee properties: Employee ID, Last Name, First Name, Title, Hire Date, Reports To, and Country.Furthermore, the Template Field has a variety of templates that can be used to customize the rendering for different situations.For example, the Item Template is used by default to render the cell for each row, but the Edit Item Template template can be used to customize the interface when editing data.