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实现gridview中某字段数据重复出现显示颜色

【IT168技术文档】
 解决方案:

    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;

 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();

 }

 }

 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 id="Head1" 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 id="form1" runat="server">

 <div  >

 <asp:GridView ID="GridView1" 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>
 

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