DataGrid单元格移动变色,点击变色,双击取消颜色,排序.

实现: 1.当鼠标移动到DataGrid的单元格时,单元格变色,并且单元格里的字体同时变色,鼠标变为手的形状.鼠标移出单元格,恢复原样. 2.当鼠标点击DataGrid的单元格时,单元格变色,单元格上的显示字体变色;当点击另一个单元格时,前一个单元格以及字体颜色恢复原样,此时的单元格变色,字体变色. 3.当双击DataGrid上单击时变色的单元格时,颜色取消,恢复原样. 4.DataGrid按顺序(ASC)和倒序(DESC)排序,并且DataGrid排序的列头显示排序标志.  排序必须注意:列头名必须和排序的字段名一致,否则将不会显示排序标志. DataGrid点击变色的注册事件在dbOrders_ItemDataBound事件中注册. if(e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)    {     e.Item.Attributes.Add("onmouseover","tdOver(this)");     e.Item.Attributes.Add("onmouseout","tdOut(this)");     e.Item.Attributes.Add("onclick","tdColor(this)");     e.Item.Attributes.Add("ondblclick","tdColorDbl(this)");    } 而之间的代码可以保存为JS文件,然后使用                                            DataGrid移动,单击变色        BorderStyle="None" AutoGenerateColumns="False" AllowPaging="True">

CS代码:

using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.HtmlControls; using System.Data.SqlClient; namespace NetTest.DataGridExample {  ///  /// DataGridColor 的摘要说明。  ///  public class DataGridColor : System.Web.UI.Page  {   protected System.Web.UI.WebControls.DataGrid dbOrders;   private string strConn=System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"].ToString();   private void Page_Load(object sender, System.EventArgs e)   {    if(!IsPostBack)    {     ViewState["SortExpression"]="";     ViewState["sort"]="desc";         }    BindData();   }   #region Web 窗体设计器生成的代码   override protected void OnInit(EventArgs e)   {    //    // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。    //    InitializeComponent();    base.OnInit(e);   }      ///   /// 设计器支持所需的方法 - 不要使用代码编辑器修改   /// 此方法的内容。   ///   private void InitializeComponent()   {       this.dbOrders.ItemCreated += new System.Web.UI.WebControls.DataGridItemEventHandler(this.dbOrders_ItemCreated);    this.dbOrders.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.dbOrders_PageIndexChanged);    this.dbOrders.SortCommand += new System.Web.UI.WebControls.DataGridSortCommandEventHandler(this.dbOrders_SortCommand);    this.dbOrders.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.dbOrders_ItemDataBound);    this.Load += new System.EventHandler(this.Page_Load);   }   #endregion   private void BindData()   {    SqlConnection Conn=new SqlConnection(strConn);    SqlCommand Cmd=new SqlCommand("select * from Orders",Conn);    SqlDataAdapter da=new SqlDataAdapter();    da.SelectCommand=Cmd;    DataSet ds=new DataSet();    Conn.Open();    da.Fill(ds);    Conn.Close();    DataTable dt=ds.Tables[0];    if(ViewState["SortExpression"].ToString()!="")    {     dt.DefaultView.Sort=ViewState["SortExpression"].ToString()+" "+ViewState["sort"].ToString();    }        dbOrders.DataSource=dt;    dbOrders.DataBind();   }   private void dbOrders_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)   {    string sort=string.Empty;    if(ViewState["SortExpression"].ToString()==e.SortExpression.ToString())    {     if(ViewState["sort"].ToString()=="asc")     {      sort="desc";     }     else     {      sort="asc";     }    }    else    {     if(ViewState["sort"].ToString()=="asc")     {      sort="desc";     }     else     {      sort="asc";     }    }    ViewState["sort"]=sort;    ViewState["SortExpression"]=e.SortExpression;    BindData();   }   private void dbOrders_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)   {    if (e.Item.ItemType==ListItemType.Header)    {     //排序     foreach(TableCell c in e.Item.Cells)     {      if (c.Controls.Count >0 && c.Controls[0].GetType().ToString()=="System.Web.UI.WebControls.DataGridLinkButton")      {       if (((LinkButton)c.Controls[0]).Text==(string)ViewState["SortExpression"])       {        Label l=new Label();        l.Font.Name="Webdings";        if ((string)ViewState["sort"]=="asc")         l.Text="5";        else         l.Text="6";        c.Controls.Add(l);       }      }     }    }   }   private void dbOrders_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)   {    dbOrders.CurrentPageIndex=e.NewPageIndex;    DataBind();   }   private void dbOrders_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)   {    if(e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)    {     e.Item.Attributes.Add("onmouseover","tdOver(this)");     e.Item.Attributes.Add("onmouseout","tdOut(this)");     e.Item.Attributes.Add("onclick","tdColor(this)");     e.Item.Attributes.Add("ondblclick","tdColorDbl(this)");    }   }  } }