![]() Therefore, you assign the value of the summary variable to the text value of the last cell. When the ItemType is Footer, you receive the total from all of the rows. In this sample, you add this value to the running summary variable. If ItemType is of type Item or AlternatingItem, you receive the value from the last cell of the item, which contains the SaleAmount value. After this event is raised, the data item is null and is no longer available.įor each item that is data bound, you must check the ItemType property. This event gives you with the last opportunity to access the data item before it appears on the client. The ItemDataBound event is raised after an item is data bound to the DataGrid control. Modify the connection string as appropriate for your environment. 'Set the DataSource for the DataGrid, and then bind the data. 'Connect to the database, retrieve data, and then fill the data in the DataSet.ĭim m圜onnection As New SqlConnection("server=(local)\netsdk "Integrated Security=SSPI" & _ĭim myDataAdapter As New SqlDataAdapter("SELECT top 15, , " & _ Replace the code in the Page_Load event with the following code: Private Sub Page_Load(ByVal sender As System.Object, _īyVal e As System.EventArgs) Handles MyBase.Load In the code-behind window, add the following code to the top of the page: Imports System.DataĪdd the following code in the class declaration section: Private myTotal As System.Double 'This variable tracks the running total. In the IDE, right-click the Web Form, and then click View Code. ![]() The Sales Totals by Amount view includes the Orders, the CompanyName, and the SaleAmount fields. In this section, you use the Sales Totals by Amount view that is located in the Northwind database to calculate the summary for the SaleAmount field. In the Properties dialog box, change the value of the ShowFooter property to True. Right-click the DataGrid control, and then click Properties. Right-click the DataGrid control, and then click Auto Format. In Solution Explorer, double-click WebForm1.aspx.ĭrag a DataGrid control from the toolbox to the form. A new project is created, which includes a Web Form that is named WebForm1.aspx. The Location box contains the following text (or similar): Change the location to and then click OK. In the New Project dialog box, notice that the Name box is unavailable (it appears dimmed). In the New Project dialog box, click Visual Basic Projects under Project Types, and then click ASP.NET Web Application under Templates. On the File menu, point to New, and then click Project. ![]() To apply a Style to an individual header, set the DataGridColumn.HeaderStyle property, which takes precedence over the DataGrid.ColumnHeaderStyle property.By default, the ShowFooter property is turned off. To define a Style for a column header, specify a TargetType of DataGridColumnHeader.Ī Style can be applied to all column headers, or to an individual column header. The following illustration shows the output.Īpply a Style to update the visual appearance of all the column headers in the DataGrid. The style of the first column header is then set with an inline style that overrides the DataGrid.ColumnHeaderStyle. The following example uses a style resource to change the style of column headers in the DataGrid. ![]() For more information about what can influence the value, see DependencyProperty. The style applied to all column headers in the DataGrid.
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