GridView使用技巧.docx

1、GridView使用技巧1.GridView无代码分页排序： 12.GridView选中，编辑，取消，删除： 23.GridView正反双向排序： 54.GridView和下拉菜单DropDownList结合： 85.GridView和CheckBox结合： 106.鼠标移到GridView某一行时改变该行的背景色方法一： 137.鼠标移到GridView某一行时改变该行的背景色方法二： 148.GridView实现删除时弹出确认对话框： 159.GridView实现自动编号： 1610.GridView实现自定义时间货币等字符串格式： 1711.GridView实现用“.”代替超长字符串：

2、2011.GridView一般换行与强制换行： 2412.GridView显示隐藏某一列： 2413.GridView弹出新页面/弹出制定大小位置新窗口： 2814.GridView固定表头(不用javascript只用CSS!，很好用)： 3015.GridView合并表头多重表头无错完美版（以合并3列3行举例） 3116.GridView突出显示某一单元格（例如金额低于多少，分数不及格等） 3517.GridView加入自动求和求平均值小计 3918.GridView数据导入Excel/Excel数据读入GridView 421.GridView无代码分页排序：效果图：1.AllowSor

3、ting设为True，aspx代码中是AllowSorting=True；2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize=10。3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。2.GridView选中，编辑，取消，删除：效果图：后台代码：你可以使用sqlhelper,本文没用。代码如下：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;u

4、sing System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page /清清月儿 SqlConnection sqlcon; SqlCommand sqlcom; string strCon = Data Source=(local);Database=数据库名

5、;Uid=帐号;Pwd=密码; protected void Page_Load(object sender, EventArgs e) if (!IsPostBack) bind(); protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) GridView1.EditIndex = e.NewEditIndex; bind(); /删除 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) s

6、tring sqlstr = delete from 表 where id= + GridView1.DataKeyse.RowIndex.Value.ToString() + ; sqlcon = new SqlConnection(strCon); sqlcom = new SqlCommand(sqlstr,sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); bind(); /更新 protected void GridView1_RowUpdating(object sender, GridViewUpda

7、teEventArgs e) sqlcon = new SqlConnection(strCon); string sqlstr = update 表 set 字段1= + (TextBox)(GridView1.Rowse.RowIndex.Cells1.Controls0).Text.ToString().Trim() + ,字段2= + (TextBox)(GridView1.Rowse.RowIndex.Cells2.Controls0).Text.ToString().Trim() + ,字段3= + (TextBox)(GridView1.Rowse.RowIndex.Cells3

8、.Controls0).Text.ToString().Trim() + where id= + GridView1.DataKeyse.RowIndex.Value.ToString() + ; sqlcom=new SqlCommand(sqlstr,sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); GridView1.EditIndex = -1; bind(); /取消 protected void GridView1_RowCancelingEdit(object sender, GridViewCan

9、celEditEventArgs e) GridView1.EditIndex = -1; bind(); /绑定 public void bind() string sqlstr = select * from 表; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, 表); GridView1.DataSource = myds; Gr

10、idView1.DataKeyNames = new string id ;/主键 GridView1.DataBind(); sqlcon.Close(); 前台主要代码： . . 3.GridView正反双向排序：效果图：点姓名各2次的排序，点其他也一样可以。后台代码：using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.

11、UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class Default3 : System.Web.UI.Page/清清月儿的博客 SqlConnection sqlcon; string strCon = Data Source=(local);Database=北风贸易;Uid=sa;Pwd=; protected void Page_Load(object sender,

12、 EventArgs e) if (!IsPostBack) ViewStateSortOrder = 身份证号码; ViewStateOrderDire = ASC; bind(); protected void GridView1_Sorting(object sender, GridViewSortEventArgs e) string sPage = e.SortExpression; if (ViewStateSortOrder.ToString() = sPage) if (ViewStateOrderDire.ToString() = Desc) ViewStateOrderDi

13、re = ASC; else ViewStateOrderDire = Desc; else ViewStateSortOrder = e.SortExpression; bind(); public void bind() string sqlstr = select top 5 * from 飞狐工作室; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.

14、Fill(myds, 飞狐工作室); DataView view = myds.Tables飞狐工作室.DefaultView; string sort = (string)ViewStateSortOrder + + (string)ViewStateOrderDire; view.Sort = sort; GridView1.DataSource = view; GridView1.DataBind(); sqlcon.Close(); 前台主要代码： 4.GridView和下拉菜单DropDownList结合：效果图：后台代码：using System;using System.Data

15、;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class Default4 : System.Web.UI.Page

16、 SqlConnection sqlcon; string strCon = Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa; protected void Page_Load(object sender, EventArgs e) DropDownList ddl; if (!IsPostBack) string sqlstr = select top 5 * from 飞狐工作室; sqlcon = new SqlConnection(strCon); SqlDataAdapter myda = new SqlDataAdapter(sqls

17、tr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open(); myda.Fill(myds, 飞狐工作室); GridView1.DataSource = myds; GridView1.DataBind(); for (int i = 0; i = GridView1.Rows.Count - 1; i+) DataRowView mydrv = myds.Tables飞狐工作室.DefaultViewi; if (Convert.ToString(mydrv员工性别).Trim() = True) ddl = (DropDownList

18、)GridView1.Rowsi.FindControl(DropDownList1); ddl.SelectedIndex = 0; if (Convert.ToString(mydrv员工性别).Trim() = False) ddl = (DropDownList)GridView1.Rowsi.FindControl(DropDownList1); ddl.SelectedIndex = 1; sqlcon.Close(); public SqlDataReader ddlbind() string sqlstr = select distinct 员工性别 from 飞狐工作室; s

19、qlcon = new SqlConnection(strCon); SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon); sqlcon.Open(); return sqlcom.ExecuteReader(); 前台主要代码： asp:DropDownList ID=DropDownList1 runat=server DataSource= DataValueField=员工性别 DataTextField=员工性别 5.GridView和CheckBox结合：效果图：后台代码：using System;using System.Data

20、;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class Default5 : System.Web.UI.Page/清清月儿 SqlConnection sqlcon; string strCon = Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa; protected void Page_Load(object sender, EventArgs e) if (!IsPostBack) bind(); protected void CheckBox2_C