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;

　public partial class Default7 : System.Web.UI.Page

　{

　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();

　}

　}