asp.net gridview 72般绝技第1/2页


            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GridView

1.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：                            ... ...<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"                        ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">                        <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />                        <Columns>                            <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />                            <asp:BoundField DataField="员工性别" HeaderText="性别" />                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />                        </Columns>                        <RowStyle ForeColor="#000066" />                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                    </asp:GridView>

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"] = "身份证号码";            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：<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"                        CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">                        <FooterStyle BackColor="White" ForeColor="#000066" />                        <Columns>                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>                            <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>                        </Columns>                        <RowStyle ForeColor="#000066" />                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                    </asp:GridView>

 

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();    }

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