根据条件改变DataGridView行的颜色可以使用RowPrePaint事件。
示例程序界面如下：
示例程序代码如下：
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using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Configuration; using System.Data.SqlClient;
namespace DgvChangeColor { public partial class Form1 : Form { public Form1() { InitializeComponent(); }
string strCon = ConfigurationManager.ConnectionStrings["DbConnection"].ConnectionString; private void Form1_Load(object sender, EventArgs e) { DataTable dt = GetDataSource(); this.DgvColor.DataSource = dt; }
private void DgvColor_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e) { if (e.RowIndex >= DgvColor.Rows.Count - 1) { return; } DataGridViewRow dr = (sender as DataGridView).Rows[e.RowIndex];
if (dr.Cells["项目代码"].Value.ToString().Trim().Equals("ACAC0001")) { // 设置单元格的背景色 dr.DefaultCellStyle.BackColor = Color.Yellow; // 设置单元格的前景色 dr.DefaultCellStyle.ForeColor = Color.Black; } else { dr.DefaultCellStyle.BackColor = Color.Blue; dr.DefaultCellStyle.ForeColor = Color.White; } }
private DataTable GetDataSource() { DataTable dt = new DataTable(); SqlConnection conn = new SqlConnection(strCon); string strSQL = "SELECT XIANGMUCDDM AS '项目代码',XIANGMUMC AS '项目名称', DANJIA AS '单价',SHULIANG AS '数量' FROM InPatientBillDt WHERE 就诊ID='225600'"; SqlCommand cmd = new SqlCommand(strSQL, conn); SqlDataAdapter adapter = new SqlDataAdapter(); adapter.SelectCommand = cmd; try { conn.Open(); adapter.Fill(dt); } catch (Exception ex) { MessageBox.Show(ex.Message); } finally { conn.Close(); } return dt; } } } |
