GridView的各种用法 2008-06-05 18:27:20分类: 系统运维快速预览:GridView无代码分页排序GridView选中,编辑,取消,删除GridView正反双向排序GridView和下拉菜单DropDownList结合GridView和CheckBox结合鼠标移到GridView某一行时改变该行的背景色方法一鼠标移到GridView某一行时改变该行的背景色方法二GridView实现删除时弹出确认对话框GridView实现自动编号GridView实现自定义时间货币等字符串格式GridView实现用“...”代替超长字符串GridView一般换行与强制换行GridView显示隐藏某一列GridView弹出新页面/弹出新窗口GridView固定表头(不用javascript只用CSS,2行代码,很好用)GridView合并表头多重表头无错完美版(以合并3列3行举例)GridView突出显示某一单元格(例如金额低于多少,分数不及格等)GridView加入自动求和求平均值小计GridView数据导入Excel/Excel数据读入GridView1.GridView无代码分页排序:效果图:1.AllowSorting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="12"。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;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 _Default : System.Web.UI.Page {//清清月儿http://blog.csdn.net/21aspnet     SqlConnection sqlcon;    SqlCommand sqlcom;    string strCon = "Data Source=(local);Database=数据库名;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)    {        string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.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, GridViewUpdateEventArgs e)    {        sqlcon = new SqlConnection(strCon);        string sqlstr = "update 表 set 字段1='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"             + GridView1.DataKeys[e.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, GridViewCancelEditEventArgs 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;        GridView1.DataKeyNames = new string[] { "id" };//主键        GridView1.DataBind();        sqlcon.Close();    }}前台主要代码:                            ... ...

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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.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http://blog.csdn.net/21aspnet     SqlConnection sqlcon;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            ViewState["SortOrder"] = "×××号码";            ViewState["OrderDire"] = "ASC";            bind();        }    }    protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)    {        string sPage = e.SortExpression;        if (ViewState["SortOrder"].ToString() == sPage)        {            if (ViewState["OrderDire"].ToString() == "Desc")                ViewState["OrderDire"] = "ASC";            else                ViewState["OrderDire"] = "Desc";        }        else        {            ViewState["SortOrder"] = 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.Fill(myds, "飞狐工作室");        DataView view = myds.Tables["飞狐工作室"].DefaultView;        string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];        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;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{    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(sqlstr, 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"].DefaultView[i];                if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")                {                    ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");                    ddl.SelectedIndex = 0;                }                if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")                {                    ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");                    ddl.SelectedIndex = 1;                }            }            sqlcon.Close();        }    }    public SqlDataReader ddlbind()    {        string sqlstr = "select distinct 员工性别 from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);        sqlcon.Open();        return sqlcom.ExecuteReader();    }前台主要代码:

 5.GridView和CheckBox结合:效果图:后台代码:using System;using System.Data;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http://blog.csdn.net/21aspnet     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_CheckedChanged(object sender, EventArgs e)    {        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");            if (CheckBox2.Checked == true)            {                cbox.Checked = true;            }            else            {                cbox.Checked = false;            }        }    }    protected void Button2_Click(object sender, EventArgs e)    {        sqlcon = new SqlConnection(strCon);        SqlCommand sqlcom;        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");            if (cbox.Checked == true)            {                string sqlstr = "delete from 飞狐工作室 where ×××号码='" + GridView1.DataKeys[i].Value + "'";                sqlcom = new SqlCommand(sqlstr, sqlcon);                sqlcon.Open();                sqlcom.ExecuteNonQuery();                sqlcon.Close();            }        }        bind();    }    protected void Button1_Click(object sender, EventArgs e)    {        CheckBox2.Checked = false;        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");            cbox.Checked = false;        }    }    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.Fill(myds, "tb_Member");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "×××号码" };        GridView1.DataBind();        sqlcon.Close();    }}前台主要代码:

6.鼠标移到GridView某一行时改变该行的背景色方法一:效果图:做法:双击GridView的OnRowDataBound事件;在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        int i;        //执行循环,保证每条数据都可以更新        for (i = 0; i < GridView1.Rows.Count; i++)        {            //首先判断是否是数据行            if (e.Row.RowType == DataControlRowType.DataRow)            {                //当鼠标停留时更改背景色                e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");                //当鼠标移开时还原背景色                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");            }        }    }前台代码:

7.鼠标移到GridView某一行时改变该行的背景色方法二:效果图:做法:和上面的一样就是代码不同protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        //int i;        执行循环,保证每条数据都可以更新        //for (i = 0; i < GridView1.Rows.Count; i++)        //{        //    //首先判断是否是数据行        //    if (e.Row.RowType == DataControlRowType.DataRow)        //    {        //        //当鼠标停留时更改背景色        //        e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");        //        //当鼠标移开时还原背景色        //        e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");        //    }        //}        //如果是绑定数据行         if (e.Row.RowType == DataControlRowType.DataRow)        {            //鼠标经过时,行背景色变             e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");            //鼠标移出时,行背景色变             e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");        }    }8.GridView实现删除时弹出确认对话框:效果图:实现方法:双击GridView的OnRowDataBound事件;在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        //如果是绑定数据行         if (e.Row.RowType == DataControlRowType.DataRow)        {             if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)            {                ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')");            }        }    }9.GridView实现自动编号:效果图:实现方法:双击GridView的OnRowDataBound事件;在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        //如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet         if (e.Row.RowType == DataControlRowType.DataRow)        {            鼠标经过时,行背景色变             //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");            鼠标移出时,行背景色变             //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");            当有编辑列时,避免出错,要加的RowState判断             //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)            //{            //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')");            //}        }        if (e.Row.RowIndex != -1)        {            int id = e.Row.RowIndex + 1;            e.Row.Cells[0].Text = id.ToString();        }    }注意这时最好把前台的第一列的表头该为“编号”,因为以前的第一列被“吃掉”了。

10.GridView实现自定义时间货币等字符串格式:效果图:图1-未格式化前图2-格式化后解决方法:在asp.net 2.0中,如果要在绑定列中显示比如日期格式等,如果用下面的方法是显示不了的

主要是由于htmlencode属性默认设置为true,已防止XSS***,安全起见而用的,所以,可以有以下两种方法解决1、

将htmlencode设置为false即可另外的解决方法为,使用模版列

<asp :Label ID="Label1" runat="server" Text=’

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