GridView终极用法(一)

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();

    }

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

                        CellPadding="3" Font-Size="9pt"  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:TemplateField HeaderText="员工性别">

                                <ItemTemplate>

                                    <asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别">

                                    </asp:DropDownList>

                                </ItemTemplate>

                            </asp:TemplateField>

                            <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>

5.GridView和CheckBox结合：

效果图：