DXPerience之ASPxGridView使用体会(一) 自定义数据后台处理

using System;

using System.Collections.Generic;

using System.Data;

using DevExpress.Web.ASPxGridView;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class Main : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{ GetData(ASPxGridView1); }

protected void GetData(ASPxGridView grid)

{

List<Category> categories = new List<Category>(); DataSet ds = msSql.SqlExecuteDataSet("select * from categories");

foreach (DataTable table in ds.Tables)

{

foreach (DataRow row in table.Rows)

{

categories.Add(

new Category(Convert.ToInt16(row[0]), Convert.ToString(row[1]), Convert.ToString(row[2])));

}

} grid.DataSource = categories; grid.DataBind();

}

protected void UpdateData(object CategoryID, object CategoryName, object Description)

{

string s = String.Format("Update categories set CategoryName='{0}',Description='{1}' where CategoryID={2}",

CategoryName, Description, CategoryID); msSql.SqlExecuteNonQuery(s);

}

protected void InsertData(object CategoryID, object CategoryName, object Description)

{

string s = String.Format("insert into categories (CategoryID,CategoryName,Description) values ({0},'{1}','{2}')",

CategoryID, CategoryName, Description); msSql.SqlExecuteNonQuery(s);

}

protected void DeleteData(object CategoryID)

{

string s = String.Format("delete from categories where CategoryID={0}", CategoryID); msSql.SqlExecuteNonQuery(s);

}

protected void ASPxGridView1_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)

{

UpdateData(e.OldValues["CategoryID"], e.NewValues[" CategoryName"], e.NewValues["Description"]);

e.Cancel = true;

(sender as ASPxGridView).CancelEdit(); GetData((sender as ASPxGridView));

}

protected void ASPxGridView1_RowDeleting( object sender, DevExpress.Web.Data.ASPxDataDeletingEventArgs e)

{

DeleteData(e.Keys[0]); e.Cancel = true; GetData((sender as ASPxGridView));

}

protected void ASPxGridView1_RowInserting(object sender, DevExpress.Web.Data.ASPxDataInsertingEventArgs e)

{

InsertData(e.NewValues["CategoryID"], e.NewValues["CategoryName"], e.NewValues["Description"]);

e.Cancel = true;

(sender as ASPxGridView).CancelEdit();

GetData((sender as ASPxGridView));

}

}

public class Category

{

private int _CategoryID;

public int CategoryID

{

get { return _CategoryID; }

set

{ _CategoryID = value; }

}

public string CategoryName { get; set; }

public string Description { get; set; }

public Category(int categoryid, string categoryname, string description)

{ CategoryID = categoryid; CategoryName = categoryname; Description = description; }

}

来自：http://www.heiqu.com/show-6545-1.html