散分，求一段调试过的编辑datagridview的代码！！

Question

只要东西好  分还可以加！！
求各位大哥大姐 拿出来分享下！！

Answer 1

http://www.cnblogs.com/peterzb/archive/2009/05/29/1491891.html
慢慢看

Answer 2

this.dataGridView1.Rows[行序号].DefaultCellStyle.ForeColor = Color.Red; //或者其他目标颜色再拿个DateTime函数控制这个语句的执行就可以了===============================
我写的例子  一个窗体  2个控件 一个DataGridView  一个Timer private void Form1_Load(object sender, EventArgs e)
        {
            this.dataGridView1.DataSource = Init();//绑定数据源的方法 返回一个实体类的对象的数组或泛型
            this.timer1.Interval = 3000;//变色时间 单位毫秒
            this.timer1.Start();
        }        private void ChageColor(int RowIndex)//传变色的行序号
        {
            if (RowIndex < this.dataGridView1.Rows.Count && RowIndex >=0)
            {
                this.dataGridView1.Rows[RowIndex].DefaultCellStyle.ForeColor = Color.Red; //可以自己设置要变的颜色
            }
        }        private void timer1_Tick(object sender, EventArgs e)
        {
            ChageColor(0);//变色方法
        } 

Answer 3

//删除
 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
        string sid = GridView1.Rows[e.RowIndex].Cells[0].Text;        SqlConnection conn = com.GetConn();
        SqlCommand comm = new SqlCommand("delete from 表名 where id=@id", conn);
        comm.Parameters.AddWithValue("@id", sid);        conn.Open();
        comm.ExecuteNonQuery();
        conn.Close();
//刷新页面
       setdata();} void setdata()
    {
        SqlConnection conn = com.GetConn();
        SqlCommand comm = new SqlCommand("select * from 表名", conn);
        SqlDataAdapter da = new SqlDataAdapter(comm);
        DataTable table = new DataTable();
        da.Fill(table);        GridView1.DataSource = table;
        GridView1.DataBind();
    
    }
那些事件是在RowEditing（这个是修改的事件，要是修改 就在这里编写） 删除的事件是在RowDeleting 中编写的 

Answer 4

http://www.code-design.cn/blogdetail694.html
这里面全有了   好好看看吧

Answer 5

datagridview导出为excel文件的C#实例  
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Data;
using System.Windows.Forms;
using Microsoft.Office.Interop.Excel;namespace AssetsManage.Operation
{
    class Export
    {
        private static System.Windows.Forms.DataGridView gridView;
        private static System.Windows.Forms.ToolStripProgressBar  toolStripProgressBar1;
        private static Timer time;
        private static DataSet objSet = new DataSet();
        private static SaveFileDialog saveFileDialog = new SaveFileDialog();
        private static SaveFileDialog saveFileDialog2 = new SaveFileDialog();
        public static System.Windows.Forms.DataGridView _gridView
        {
            get { return gridView; }
            set { gridView = value;}
        }
        public static System.Windows.Forms.ToolStripProgressBar _toolStripProgressBar1
        {
            get { return toolStripProgressBar1; }
            set { toolStripProgressBar1 = value;}
        }
        public static Timer _time
        {
            get { return time; }
            set { time = value;}
        }
        public static DataSet _objSet
        {
            get { return objSet; }
            set { objSet.Clear(); objSet = value; }
        }        //导出当前页DataGridView中的数据到EXcel中
        public static void ExportTOExcel()
        {
            if (gridView.Rows.Count == 0)
            {
                MessageBox.Show("没有数据可供导出！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            else
            {
                saveFileDialog.Filter = "Execl files (*.xls)|*.xls";
                saveFileDialog.FilterIndex = 0;
                saveFileDialog.RestoreDirectory = true;
                saveFileDialog.CreatePrompt = true;
                saveFileDialog.Title = "导出文件保存路径";
                saveFileDialog.ShowDialog();
                string strName = saveFileDialog.FileName;
                if (strName.Length != 0)
                {
                    toolStripProgressBar1.Visible = true;
                    System.Reflection.Missing miss = System.Reflection.Missing.Value;
                    Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass();
                    excel.Application.Workbooks.Add(true); ;
                    excel.Visible = false;//若是true，则在导出的时候会显示EXcel界面。
                    if (excel == null)
                    {
                        MessageBox.Show("EXCEL无法启动！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return;
                    }
                    Microsoft.Office.Interop.Excel.Workbooks books = (Microsoft.Office.Interop.Excel.Workbooks)excel.Workbooks;
                    Microsoft.Office.Interop.Excel.Workbook book = (Microsoft.Office.Interop.Excel.Workbook)(books.Add(miss));
                    Microsoft.Office.Interop.Excel.Worksheet sheet = (Microsoft.Office.Interop.Excel.Worksheet)book.ActiveSheet;
                    sheet.Name = "test";                    //生成字段名称
                    for (int i = 0; i < gridView.ColumnCount; i++)
                    {
                        excel.Cells[1, i + 1] = gridView.Columns[i].HeaderText.ToString();
                    }
                    //填充数据
                    for (int i = 0; i < gridView.RowCount - 1; i++)
                    {
                        for (int j = 0; j < gridView.ColumnCount; j++)
                        {
                            if (gridView[j, i].Value == typeof(string))
                            {
                                excel.Cells[i + 2, j + 1] = "" + gridView[i, j].Value.ToString();
                            }
                            else
                            {
                                excel.Cells[i + 2, j + 1] = gridView[j, i].Value.ToString();
                            }
                        }
                        toolStripProgressBar1.Value += 100 / gridView.RowCount;
                    }
                    sheet.SaveAs(strName, miss, miss, miss, miss, miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss);
                    book.Close(false, miss, miss);
                    books.Close();
                    excel.Quit();
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet);
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(book);
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(books);
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
                    GC.Collect();
                    MessageBox.Show("数据已经成功导出到：" + saveFileDialog.FileName.ToString(), "导出完成", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    toolStripProgressBar1.Value = 0;
                    toolStripProgressBar1.Visible = false;
                }
            }
        }        //-------------------------------------------------------------------------------------------------------------------------------------
        //导出整个DataGridView中的数据到Excel中
        public static void ExportTOExcel2()
        {
            if (gridView.Rows.Count == 0)
            {
                MessageBox.Show("没有数据可供导出！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            else
            {
                saveFileDialog2.Filter = "Execl files (*.xls)|*.xls";
                saveFileDialog2.FilterIndex = 0;
                saveFileDialog2.RestoreDirectory = true;
                //saveFileDialog2.CreatePrompt = true;
                saveFileDialog2.Title = "导出文件保存路径";
                saveFileDialog2.FileName = null;
                saveFileDialog2.ShowDialog();
                string FileName =  saveFileDialog2.FileName;                if (FileName.Length != 0)
                {
                    toolStripProgressBar1.Visible = true;
                    System.Data.DataTable dt = objSet.Tables[0];                    FileStream objFileStream;
                    StreamWriter objStreamWriter;
                    string strLine = "";
                    objFileStream = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.Write);
                    objStreamWriter = new StreamWriter(objFileStream, System.Text.Encoding.Unicode);
                    toolStripProgressBar1.Value = 0;                    for (int i = 0; i < dt.Columns.Count; i++)
                    {
                        strLine = strLine + dt.Columns[i].ColumnName.ToString() + Convert.ToChar(9);                    }
                    objStreamWriter.WriteLine(strLine);
                    strLine = "";                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        strLine = strLine + (i + 1) + Convert.ToChar(9);
                        for (int j = 1; j < dt.Columns.Count; j++)
                        {
                            strLine = strLine + dt.Rows[i][j].ToString() + Convert.ToChar(9);                        }
                        objStreamWriter.WriteLine(strLine);
                        toolStripProgressBar1.Value += 100 / dt.Rows.Count;
                        strLine = "";
                    }
                    objStreamWriter.Close();
                    objFileStream.Close();
                    MessageBox.Show("数据已经成功导出到：" + saveFileDialog2.FileName.ToString(), "导出完成", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    toolStripProgressBar1.Value = 0;
                    toolStripProgressBar1.Visible = false;
                }
            }
        }        //————————————————————————————————————————————————————————————————————
        //导出到XML(整个数据源)        public static void ExportTOXML()
        {
            if (gridView.Rows.Count == 0)
            {
                MessageBox.Show("没有数据可供导出！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            else
            {
                saveFileDialog2.Filter = "XML files (*.xml)|*.xml";
                saveFileDialog2.FilterIndex = 0;
                saveFileDialog2.RestoreDirectory = true;
                //saveFileDialog2.CreatePrompt = true;
                saveFileDialog2.Title = "导出文件保存路径";
                saveFileDialog2.FileName = null;
                saveFileDialog2.ShowDialog();
                string FileName =  saveFileDialog2.FileName;                if (FileName.Length != 0)
                {
                    toolStripProgressBar1.Visible = true;
                    objSet.WriteXml(saveFileDialog2.FileName.ToString());
                    for (int i = 0; i < objSet.Tables[0].Rows.Count; i++)
                    {
                        toolStripProgressBar1.Value += 100 / objSet.Tables[0].Rows.Count;
                    }
                    MessageBox.Show("数据已经成功导出到：" + saveFileDialog2.FileName.ToString(), "导出完成", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    toolStripProgressBar1.Value = 0;
                    toolStripProgressBar1.Visible = false;
                }
            }
        }
    }
}

Answer 6

还是没有看明白！！
在datagridview的数据修改后，点保存，更新数据库

Answer 7

datagridview更新
DataSet ds = new DataSet();
SqlDataAdapter sda;SqlCommandBuilder scb = new SqlCommandBuilder(sda);
sda.Update(ds);
this.dataGridView1.DataSource = ds.Tables[0];

Answer 8

其实我觉得有个比较方便的方法，你在datagridview中加一个DataGridViewCheckBoxColumn。当你修改某一行的数据化，可以手动选择前面的checkbox，然后点击保存的时候，就只update checkbox为true的行。

Answer 9

比如，你要讲datagridview第i行更新到数据库，并且有一个关键字ID，在datagridview为第一列，在数据库中唯一
update 表 set 列2=datagridview.rows[i][1].toString(),列3=datagridview.rows[i].cell[2].toString() where ID = '"+datagridview.row[i].cell[0]+"';
写一个循环，如果checkbox为true，就执行更新。

Answer 10

刚写的一个日期转换的类，看着给分吧
！！！！！！using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication1
{
    public partial class Form3 : Form
    {
        public Form3()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
           
            label1.Text = LunDay.GetLunarCalendar(dateTimePicker1.Value);            label1.Text += "\n" + LunDay.GetTianGanDiZhi(dateTimePicker1.Value);
            label1.Text += "\n" + LunDay.GetMonthDay(dateTimePicker1.Value);
            label1.Text += "\n" + LunDay.GetWeekDay(dateTimePicker1.Value);
            label1.Text += "\n" + LunDay.GetShengXiao(dateTimePicker1.Value);
        }        private void button2_Click(object sender, EventArgs e)
        {
            List<list> lst = new List<list>();
            
            lst.Add(new list("zhan","hebei"));
            lst.Add(new list("li","zhanjiakou"));
            comboBox1.DataSource = lst;
            comboBox1.DisplayMember = "name";
            comboBox1.ValueMember = "address";
            
        }        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            MessageBox.Show(comboBox1.SelectedValue.ToString());
        }        private void button3_Click(object sender, EventArgs e)
        {
            List<list> lst = new List<list>();
            comboBox1.DisplayMember = "name";
            comboBox1.ValueMember = "address";
            lst.Add(new list("wang", "beijin"));
            lst.Add(new list("de", "tianji"));
            comboBox1.DataSource = lst;
        }
    }
}

Answer 11

我不用checkbox呢？  多行修改如何实现？

Answer 12

必须用checkbox啊?老哥？？？

Answer 13

请教 SqlCommandBuilder
来实现！
给个例子 最好~