C#数据库绑定

.Net对数据库的绑定

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.Data.OracleClient;
using System.Data.OleDb;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void BuildColor()
        {
            for (int i = 0; i < this.dataGridView1.Rows.Count; i++)
            {
                if (this.dataGridView1[0, i] != null && this.dataGridView1[0, i].Value != null)
                {
                    // 根据条件设置不同的颜色
                    if (this.dataGridView1[6, i].Value.ToString() == "3")
                        this.dataGridView1[6, i].Style.BackColor = Color.Blue;
                    else if (this.dataGridView1[6, i].Value.ToString() == "10")
                        this.dataGridView1[6, i].Style.BackColor = Color.Yellow;
                }
            }
        }

        private void btnGetData_Click(object sender, EventArgs e)
        {
            using (OracleConnection conn =
            new OracleConnection("data source=10.21.144.152/JXWSQZJ;User Id=qzj_bak;Password=qzj_bak;"))
            {
                OracleCommand cmd = conn.CreateCommand();
                cmd.CommandText = "select *  from TB_YL_MZ_MEDICAL_RECORD where rownum<100";
                conn.Open();

                OracleDataReader odr = cmd.ExecuteReader();
                OracleDataAdapter sda = new OracleDataAdapter(cmd);
                DataSet ds = new DataSet();
                sda.Fill(ds, "TB_YL_MZ_MEDICAL_RECORD");
                dataGridView1.DataSource = ds;
                dataGridView1.DataMember = "TB_YL_MZ_MEDICAL_RECORD";   //上面两句等价于 dataGridView1.DataSource = ds.Tables["TB_YL_MZ_MEDICAL_RECORD"]
                dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;
                dataGridView1.Columns[0].HeaderText = "测试";
                foreach (DataGridViewColumn col in dataGridView1.Columns)
                {
                    if (col.Name == "KH")
                    { col.HeaderText = "aaaa"; }
                }
                this.BuildColor();
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // TODO: 这行代码将数据加载到表“yygl_jxDataSet.CLGL_Import”中。您可以根据需要移动或删除它。
            //dataGridView1.Dock = DockStyle.Fill;
            //dataGridView1.DataSource = System.Drawing.Imaging.ImageCodecInfo.GetImageDecoders();
        }

        private void cLGLImportBindingSource_CurrentChanged(object sender, EventArgs e)
        {

        }

        private void dataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
        {
            System.Drawing.Rectangle rectangle = new System.Drawing.Rectangle(e.RowBounds.Location.X,
        e.RowBounds.Location.Y,
        dataGridView1.RowHeadersWidth - 4,
        e.RowBounds.Height);

            TextRenderer.DrawText(e.Graphics, (e.RowIndex + 1).ToString(),
                dataGridView1.RowHeadersDefaultCellStyle.Font,
                rectangle,
                dataGridView1.RowHeadersDefaultCellStyle.ForeColor,
                TextFormatFlags.VerticalCenter | TextFormatFlags.Right);
        }

        private void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
        {
            for (int i = 0; i < this.dataGridView1.Rows.Count; i++)
            {
                if (i % 2 == 0)
                {
                    this.dataGridView1.Rows[i].DefaultCellStyle.BackColor = Color.LightGreen;
                    //this.dataGridView1.Rows[i].DefaultCellStyle.Font = Font.;
                }
                else
                {
                    this.dataGridView1.Rows[i].DefaultCellStyle.BackColor = Color.LightBlue;
                    //this.dataGridView1.Rows[i].DefaultCellStyle.Font = this.splitContainer1.Font;
                }
            }
        }
    }
}