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GridView 72般绝技-2

2013年11月29日 ⁄ 综合 ⁄ 共 24877字 ⁄ 字号 评论关闭

转自:http://leejlong.blog.163.com/blog/static/20302163200736430071/

11.GridView一般换行与强制换行:

效果图:

首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  ItemStyle-Width="100" />
gridview里有一列绑定的数据很长,显示的时候在一行里面显示,页面拉得很宽。
原因是连续英文段为一个整体导致的,在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。

如果要给所有的列增加此属性:
 protected void Page_Load(object sender, EventArgs e)
    {
        //正常换行
        GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");
        //下面这行是自动换行
        GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");
        if (!IsPostBack)
        {
             bind();//调用数据绑定即可
        }
    }
总之:善用CSS的word-break:break-all;word-wrap:break-word属性即可,这个属性是通用的对于顽固的南换行问题都可以解决,不局限于GridView。

 12.GridView显示隐藏某一列:
本方案为月儿独创,不同于网上其他方式,我觉得用一个CheckBox更人性化,这样可以隐藏不必要的列,让用户自己选择需要出现的列,在处理多列时这是一个很好的解决方案!

效果图:
图1-开始

图2-点击显示的CheckBox后

解决方案:
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");
        GridView1.DataSource = myds;
        GridView1.DataKeyNames = new string[] { "身份证号码" };
        GridView1.DataBind();
        sqlcon.Close();
        GridView1.Columns[3].Visible = false;//一开始隐藏
        CheckBox1.Checked = false;//如果不这样后面的代码会把他True

    }

双击CheckBox1,在CheckedChanged方法里写上代码,最后代码如下:
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
    {
         GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
         Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString());
    }

注意:CheckBox1的AutoPostBack要True

后台全部代码如下:

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;

   SqlConnection sqlcon;
    SqlCommand sqlcom; 
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            ViewState["SortOrder"] = "身份证号码";
            ViewState["OrderDire"] = "ASC";
            bind();
                   }
    }
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bind();
    }
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcon = new SqlConnection(strCon);
        sqlcom = new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        bind();
    }
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        sqlcon = new SqlConnection(strCon);
        string sqlstr = "update 飞狐工作室 set 姓名='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcom=new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        GridView1.EditIndex = -1;
        bind();
    }
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        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");
        GridView1.DataSource = myds;
        GridView1.DataKeyNames = new string[] { "身份证号码" };
        GridView1.DataBind();
        sqlcon.Close();
        GridView1.Columns[3].Visible = false;
        CheckBox1.Checked = false;
    }
    protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
    {
         GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
         Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString());
    }
}

前台代码:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>GridView显示隐藏列 清清月儿http://blog.csdn.net/21aspnet </title>
</head>
<body style=" font-size=12px">
    <form runat="server">
    <div>
                   <asp:GridView runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >
                        <FooterStyle BackColor="White" ForeColor="#000066" />
                        <Columns>
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                            <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>
        <asp:CheckBox runat="server" AutoPostBack="True" Font-Size="12px"
            OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址" /></div>
    </form>
</body>
</html>

 13.GridView弹出新页面/弹出制定大小位置新窗口:

效果图:

方案一:简单的方法,新窗口不固定大小
 <asp:GridView runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >
                        <FooterStyle BackColor="White" ForeColor="#000066" />
                        <Columns>
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                            <asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >
                    </asp:HyperLinkField>
                            <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>
DataNavigateUrlFields是链接的字段名,DataNavigateUrlFormatString是路径。

方案二:精确控制弹出窗口大小位置
<asp:HyperLinkColumn DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString=";window.Close();"
       DataTextField="LastName" HeaderText="LastName"></asp:HyperLinkColumn>

使用的是结合javascript的window.open方法,关于window.open的参数网上有很多帖子,本站也有许多参考
弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx   即可!

  14.GridView固定表头(不用javascript只用CSS!,很好用)

效果图:

代码:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>
        <style>
.Freezing
   {
   
  
  
    
  
   }

.Freezingoverflow:hidden;white-space: nowrap;padding:2px;}
</style>
</head>
<body style="font-size=12px">
    <form runat="server">
    <div style="overflow-y: scroll;width:300px" >
                   <asp:GridView runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >
                        <FooterStyle BackColor="White" ForeColor="#000066" />
                        <Columns>
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                           
                        </Columns>
                        <RowStyle ForeColor="#000066" />
                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>
                    </asp:GridView>
        </div>

    </form>
</body>
</html>

用法:CSS设如上的样式,HeaderStyle加CssClass="Freezing,套住GridView的Div设置高度宽度 <div style="overflow-y: scroll;width:200px" >

15.GridView合并表头多重表头无错完美版(以合并3列3行举例)

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;
using System.Drawing;
public   SqlConnection sqlcon;
    SqlCommand sqlcom;
    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 GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bind();
    }
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        sqlcon = new SqlConnection(strCon);
        string sqlstr = "update 飞狐工作室 set 姓名='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcom=new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        GridView1.EditIndex = -1;
        bind();
    }
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        bind();
    }
    public void bind()
    {
        string sqlstr = "select top 10 * 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.DataKeyNames = new string[] { "身份证号码" };
        GridView1.DataBind();
        sqlcon.Close();
    }

//这里就是解决方案
    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
    {
        switch (e.Row.RowType)
        {
                          //第一行表头
                TableCellCollection tcHeader = e.Row.Cells;
                tcHeader.Clear();
                tcHeader.Add(new TableHeaderCell());
                tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row
                tcHeader[0].Attributes.Add("bgcolor", "white");
                tcHeader[0].Text = "";
                tcHeader.Add(new TableHeaderCell());
                //tcHeader[1].Attributes.Add("bgcolor", "Red");
                tcHeader[1].Attributes.Add("colspan", "6"); //跨Column
                tcHeader[1].Text = "全部信息</th></tr><tr>";

                //第二行表头
                tcHeader.Add(new TableHeaderCell());
                tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");
                tcHeader[2].Text = "身份证号码";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");
                tcHeader[3].Attributes.Add("colspan", "2");
                tcHeader[3].Text = "基本信息";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");
                tcHeader[4].Text = "福利";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");
                tcHeader[5].Attributes.Add("colspan", "2");
                tcHeader[5].Text = "联系方式</th></tr><tr>";

                //第三行表头
                tcHeader.Add(new TableHeaderCell());
                tcHeader[6].Attributes.Add("bgcolor", "Khaki");
                tcHeader[6].Text = "身份证号码";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[7].Attributes.Add("bgcolor", "Khaki");
                tcHeader[7].Text = "姓名";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[8].Attributes.Add("bgcolor", "Khaki");
                tcHeader[8].Text = "出生日期";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[9].Attributes.Add("bgcolor", "Khaki");
                tcHeader[9].Text = "薪水";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[10].Attributes.Add("bgcolor", "Khaki");
                tcHeader[10].Text = "家庭住址";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[11].Attributes.Add("bgcolor", "Khaki");
                tcHeader[11].Text = "邮政编码";
                break;
        }
    }
}

前台:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title>
</head>
<body >
    <form runat="server">
    <div  >
                   <asp:GridView runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >
                        <FooterStyle BackColor="White" ForeColor="#000066" />
                        <Columns>
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />
                             <asp:BoundField DataField="起薪" HeaderText="起薪"  />
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                          
                        </Columns>
                        <RowStyle ForeColor="#000066" />
                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                    </asp:GridView>
        </div>

    </form>
</body>
</html>

16.GridView突出显示某一单元格(例如金额低于多少,分数不及格等)

效果图:

解决方案:主要是绑定后过滤
 GridView1.DataBind();
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
        {
            DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
            string score = Convert.ToString(mydrv["起薪"]);
            if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等
            {
                GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;
            }
        }
        sqlcon.Close();

全部后台代码:

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;
using System.Drawing;

   SqlConnection sqlcon;
    SqlCommand sqlcom;
    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 GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bind();
    }
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        sqlcon = new SqlConnection(strCon);
        string sqlstr = "update 飞狐工作室 set 姓名='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcom = new SqlCommand(sqlstr, sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        GridView1.EditIndex = -1;
        bind();
    }
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        bind();
    }
    public void bind()
    {
        string sqlstr = "select top 10 * 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.DataKeyNames = new string[] { "身份证号码" };
        GridView1.DataBind();
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
        {
            DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
            string score = Convert.ToString(mydrv["起薪"]);
            if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

            {
                GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;
            }
        }
        sqlcon.Close();
    }
}

前台代码:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title>
</head>
<body >
    <form runat="server">
    <div  >
                   <asp:GridView runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >
                        <FooterStyle BackColor="White" ForeColor="#000066" />
                        <Columns>
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />
                             <asp:BoundField DataField="起薪" HeaderText="起薪"  DataFormatString="{0:C}" HtmlEncode="false"/>
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                          
                        </Columns>
                        <RowStyle ForeColor="#000066" />
                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                    </asp:GridView>
        </div>

    </form>
</body>
</html>

 17.GridView加入自动求和求平均值小计

效果图:
解决方案:    
private double sum = 0;//取指定列的数据和,你要根据具体情况对待可能你要处理的是int
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
       
        if (e.Row.RowIndex >= 0)
        {
            sum += Convert.ToDouble(e.Row.Cells[6].Text);
        }
        else if (e.Row.RowType == DataControlRowType.Footer)
        {
            e.Row.Cells[5].Text = "总薪水为:";
            e.Row.Cells[6].Text = sum.ToString();
            e.Row.Cells[3].Text = "平均薪水为:";
            e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
           
        }
    }

后台全部代码:
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;
using System.Drawing;

   SqlConnection sqlcon;
    SqlCommand sqlcom;
    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 GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bind();
    }
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        sqlcon = new SqlConnection(strCon);
        string sqlstr = "update 飞狐工作室 set 姓名='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcom = new SqlCommand(sqlstr, sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        GridView1.EditIndex = -1;
        bind();
    }
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        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");
        GridView1.DataSource = myds;
        GridView1.DataKeyNames = new string[] { "身份证号码" };
        GridView1.DataBind();
        sqlcon.Close();
    }
    private double sum = 0;//取指定列的数据和
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
       
        if (e.Row.RowIndex >= 0)
        {
            sum += Convert.ToDouble(e.Row.Cells[6].Text);
        }
        else if (e.Row.RowType == DataControlRowType.Footer)
        {
            e.Row.Cells[5].Text = "总薪水为:";
            e.Row.Cells[6].Text = sum.ToString();
            e.Row.Cells[3].Text = "平均薪水为:";
            e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
           
        }
    }
}
前台:唯一的花头就是设置ShowFooter="True" ,否则默认表头为隐藏的!
<asp:GridView runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True"  >
                        <FooterStyle BackColor="White" ForeColor="#000066" />
                        <Columns>
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                            <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                            <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                            <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                            <asp:BoundField DataField="起薪" HeaderText="起薪"  />
                          
                        </Columns>
                        <RowStyle ForeColor="#000066" />
                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                    </asp:GridView>

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