DataGrid - (ASP.NET Web Forms)

In ASP.NET Web Forms, the DataGrid control is used to display data in a grid format. It is one of the most commonly used data presentation controls in web applications. This page will cover various aspects of working with the DataGrid control in ASP.NET Web Forms.

Syntax

The DataGrid control is defined using the following syntax:

<asp:DataGrid id="grid" runat="server" AutoGenerateColumns="true"></asp:DataGrid>

Here id is a unique identifier for the DataGrid control and AutoGenerateColumns specifies whether the columns should be generated automatically, based on the data source.

Example

Here is an example of using the DataGrid control to display data from a SQL Server database:

<asp:DataGrid id="grid" runat="server" AutoGenerateColumns="false">
   <Columns>
      <asp:BoundColumn HeaderText="Employee ID" DataField="EmployeeID" />
      <asp:BoundColumn HeaderText="Last Name" DataField="LastName" />
      <asp:BoundColumn HeaderText="First Name" DataField="FirstName" />
      <asp:BoundColumn HeaderText="Title" DataField="Title" />
      <asp:BoundColumn HeaderText="Hire Date" DataField="HireDate" />
      <asp:BoundColumn HeaderText="Salary" DataField="Salary" />
   </Columns>
</asp:DataGrid>

Here, the Columns element specifies the columns to be displayed in the grid. The DataField attribute specifies the data source field for each column, and the HeaderText attribute specifies the column header.

Output

The DataGrid control generates an HTML table with the data from the data source. Each row in the table represents a record in the data source, and each column represents a field in the data source.

Explanation

The DataGrid control is a powerful tool for displaying data in an organized and interactive way. It provides features such as sorting, paging, and editing to enhance user experience. The DataGrid control supports binding to a variety of data sources including SQL Server databases, XML files, and objects.

Use

The DataGrid control is used in web applications to display data in a tabular format. It is highly customizable and can be used to display complex data such as hierarchical data with nested grids. It is a vital tool for developers who need to create professional-looking web applications that provide data display capabilities.

Important Points

• The DataGrid control is defined using the <asp:DataGrid> tag.
• Columns for the DataGrid control are defined within the <Columns> tag.
• The DataGrid control generates an HTML table to display data.
• The DataGrid control supports sorting, paging, and editing of data.
• The DataGrid control can be bound to a variety of data sources.

Summary

In this page, we learned about the DataGrid control in ASP.NET Web Forms. We covered the syntax, example, output, explanation, use, and important points of the DataGrid control. The DataGrid control is a powerful tool for displaying data in web applications and provides a significant amount of flexibility in data display and user interaction.