DataGridView列移动后，怎么打印出被移动的值 100分求解

Question

原来123456列移动后
变成213456
这里的1 2 3  4 5 6 这个是列的
格的值 比如
111 222  333  444  555  666 
在换他们顺序的时候
变成(可视)
222 1111 333 444 555 666
但我把这些移动后生成的值输入到文本上后发现，还是
123456这样的顺序可是在输出的文本里面是
111 222  333  444  555  666 谁能帮我Orz

Answer 1

  /// <summary>
        /// 把dgv寫到txt中
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btn_2txt_Click(object sender, EventArgs e)
        {            if (txt_filename.Text.Trim() == "")
            {
                lb_showmsg.Text = "文件名為空不能創建";            }
            else
            {
                txt_filename.Enabled = false;   
                lb_showmsg.Text = "文件名:" + txt_filename.Text + ".txt 創建成功";                StreamWriter s_SW = new StreamWriter(@"D:\" + txt_filename.Text + ".txt", true);                string myfile = "\n";
                for (int i = 0; i < dataGridView1.RowCount; i++)
                {
                    for (int j = 0; j<dataGridView1.ColumnCount; j++)
                    {
                       // myfile += i.ToString() + "\t" + j.ToString() + "\t" + "\t";
                        label1.Text = i.ToString() + "\t" + j.ToString() + "\t" + "\t";
                      if (j+1<dataGridView1.ColumnCount)
                      {
                        myfile += dataGridView1[j,i].Value==null? "null\t,":"\""+dataGridView1[j, i].Value.ToString()+"\",";
                      }
                      else
                      {
                      
                      myfile += dataGridView1[j,i].Value==null? "null\t":"\""+dataGridView1[j, i].Value.ToString()+"\"";
                      }
                       
                       
                    
                    }
                    myfile += "\n";
                
                }
                    //write now
                    s_SW.WriteLine(myfile);
                s_SW.Close();
                txt_filename.Enabled = true;               }
                
               
            
                  }

Answer 2

不用DataGridView
使用GridX...
Developer Express .NET v7.2

Answer 3

http://dev.yesky.com/msdn/196/2017696.shtml

Answer 4

      private void btn_next_Click(object sender, EventArgs e)
        {            //向左
            try
            {
                this.dataGridView1.Columns[this.dataGridView1.CurrentCell.ColumnIndex].DisplayIndex = this.dataGridView1.Columns[this.dataGridView1.CurrentCell.ColumnIndex].DisplayIndex - 1;
                // y++;
            }
            catch
            {
                this.dataGridView1.Columns[this.dataGridView1.CurrentCell.ColumnIndex].DisplayIndex = 0;
                //y = 0;
            }
                   }        private void btn_prv_Click(object sender, EventArgs e)
        {            //向右
            try
            {
                this.dataGridView1.Columns[this.dataGridView1.CurrentCell.ColumnIndex].DisplayIndex = this.dataGridView1.Columns[this.dataGridView1.CurrentCell.ColumnIndex].DisplayIndex + 1;
                // y++;
            }
            catch
            {
                this.dataGridView1.Columns[this.dataGridView1.CurrentCell.ColumnIndex].DisplayIndex = this.dataGridView1.ColumnCount - 1;
                //y = 0;
            }
            
        }

Answer 5

看看这个:http://www.cnblogs.com/heekui/archive/2007/05/29/764531.html

Answer 6

只要在输出的时候，按列的DisplayIndex顺序输出，而不是按Index输出，为了方便，可封装一个专门方法://取得下标真正显示的位置
private int GetDisplayIndex(int index)
        {
            for (int i = 0; i < dataGridView1.Columns.Count; i++)
            {
                if (dataGridView1.Columns[i].DisplayIndex == index)
                {
                    return i;
                }
            }
        }
而你的代码里这样修改：for (int j = 0; j<dataGridView1.ColumnCount; j++)
                    {
                       // myfile += i.ToString() + "\t" + j.ToString() + "\t" + "\t";
                        label1.Text = i.ToString() + "\t" + j.ToString() + "\t" + "\t";
int k=GetDisplayIndex(j);//取得真正输出的列
                      if (j+1<dataGridView1.ColumnCount)
                      {
                        myfile += dataGridView1[k,i].Value==null? "null\t,":"\""+dataGridView1[k, i].Value.ToString()+"\",";
                      }
                      else
                      {
                      
                      myfile += dataGridView1[k,i].Value==null? "null\t":"\""+dataGridView1[k, i].Value.ToString()+"\"";
                      }
                       
                       
                    
                    }

Answer 7

       private void btn_2txt_Click(object sender, EventArgs e)
        {
            int[] index = new int[this.dataGridView1.Columns.Count];
            int i = 0;
            foreach (DataGridViewColumn column in dataGridView1.Columns)
            {
                index[i] = column.DisplayIndex;
                i++;
            }            if (txt_filename.Text.Trim() == "")
            {
                lb_showmsg.Text = "文件名為空不能創建";            }
            else
            {
                txt_filename.Enabled = false;
                lb_showmsg.Text = "文件名:" + txt_filename.Text + ".txt 創建成功";                StreamWriter s_SW = new StreamWriter(txt_filename.Text + ".txt", true);
                string myfile = "\n";
                for (i = 0; i < dataGridView1.RowCount; i++)
                {
                    for (int j = 0; j < dataGridView1.ColumnCount; j++)
                    {
                        // myfile += i.ToString() + "\t" + j.ToString() + "\t" + "\t";
                        label1.Text = i.ToString() + "\t" + j.ToString() + "\t" + "\t";
                        if (j + 1 < dataGridView1.ColumnCount)
                        {
                            myfile += dataGridView1[index[j], i].Value == null ? "null\t," : "\"" + dataGridView1[index[j], i].Value.ToString() + "\",";
                        }
                        else
                        {                            myfile += dataGridView1[index[j], i].Value == null ? "null\t" : "\"" + dataGridView1[index[j], i].Value.ToString() + "\"";
                        }
                    }
                    myfile += "\n";                }
                //write now
                s_SW.WriteLine(myfile);
                s_SW.Close();
                txt_filename.Enabled = true;
            }
        }         

Answer 8

代码已经测试通过.
首先将列的索引保存起来:int[] index = new int[this.dataGridView1.Columns.Count];
int i = 0;
foreach (DataGridViewColumn column in dataGridView1.Columns)
{
    index[i] = column.DisplayIndex;
    i++;
}然后循环的时候查找索引:
myfile += dataGridView1[index[j], i].Value == null ? "null\t," : "\"" + dataGridView1[index[j],i].Value.ToString() + "\",";