寫了一天，做出來才知道沒有那么難。
我還向我的朋友求助，向主任請教，獲得了很多版本，下面我把代碼列出，和大家一起分享。
我要感謝我的朋友和他的項目經理，還有我的主任。
?
第一版
#region change hang lie in DataSet out DataSet?
???????
??public? DataSet changehl(DataSet mm)
??{
???try
????? {
???????int h=mm.Tables[0].Rows.Count;
?????? int l=mm.Tables[0].Columns.Count;????
?????? DataSet myDataSet = new DataSet();
?????? DataTable namesTable= new DataTable();????????
?????? for(int i=0; i<h; i++)
?????? {?
?????? ?namesTable.Columns.Add(mm.Tables[0].Rows[i][0].ToString ());
????????}?????????
?????? for(int i=0;i<l;i++)
????? ?{?????
?????? ?DataRow r;
??????? r=namesTable.NewRow();?????????
??????? for(int j=0;j<h;j++)????
????? ?{???????
?????? ?r[j] = mm.Tables[0].Rows[j][i].ToString();?????????
?????? }
??????? if (i==0)
?????? ?{}
?????? ?else
?????? {
?????? ?namesTable.Rows.Add(r);?
?????? }
????}
????myDataSet.Tables.Add(namesTable);??????
???????
????return myDataSet;
???}???
???catch(Exception ex)
???{
????return mm ;
????}
???
??}
??#endregion
?
?
第二版
?
#region change hang lie in DataGrid out DataSet?
?
private DataSet dataGridChangeRC(DataGrid ss )
??{
???DataSet myDataSet = new DataSet();
???try
???{
????int h=ss.Items.Count;
????int l=ss.Items[0].Cells.Count;
????string[,] ary=new string[h,l];
????for(int i=0;i<h;i++)
????{
?????for(int j=0;j<l;j++)
?????{
??????ary[i,j]=ss.Items[i].Cells[j].Text.Trim().ToString () ;
?????}
????}
????DataTable namesTable= new DataTable();?
????for(int i=0; i<h; i++)
????{?
?????namesTable.Columns.Add(ary[i,0]);
????}?
????for(int i=0;i<l;i++)
????{?????
?????DataRow r;
?????r=namesTable.NewRow();?????????
?????for(int j=0;j<h;j++)????
?????{???????
??????r[j] = ary[j,i];???????
?????}
?????if (i==0)
?????{}
?????else
?????{
??????namesTable.Rows.Add(r);?
?????}
????}
????myDataSet.Tables.Add(namesTable);??????
????return myDataSet;
???}
???catch(Exception ex)
???{
??? ???return myDataSet;
???}
??}
?#endregion
?
第三版
??using System;
??using System.Collections.Generic;
??using System.ComponentModel;
??using System.Data;
??using System.Drawing;
??using System.Text;
??using System.Windows.Forms;
??namespace Win_form
??{
???? public partial class DataSet : Form
???????? {
????????? public DataSet()
????????? {
?????????? InitializeComponent();
????????? }
????????? #region change hang lie
????????? public static DataSet changehl(DataSet mm)
????????? {
?????????? try
?????????? {
??????????? int sourceRowsCount = mm.Tables[0].Rows.Count;
??????????? int sourceColumnsCount = mm.Tables[0].Columns.Count;
??????????? DataSet destinationDataSet = new DataSet();
??????????? DataTable destinationTable = new DataTable();
??????????? #region initialize destination table
??????????? for (int i = 0; i < sourceRowsCount; i++)
??????????? {
??????????? destinationTable.Columns.Add(Convert.ToString(i));
??????????? }
??????????? destinationTable.Rows.Count = sourceColumnsCount;
??????????? #endregion
??????????? #region reverse source table to destination table Using Two Dimension Matrix Reverse Arithmetic
??????????? int dcIndex;//the column number of each destination table row
??????????? int srIndex;//the row number of each source table column
??????????? int drIndex;
??????????? int scIndex;
??????????? for (dcIndex = 0, srIndex = 0;
???????????? dcIndex < destinationTable.Columns.Count
???????????? && srIndex < sourceRowsCount; dcIndex++, srIndex++)
??????????? {
???????????? for (drIndex = 0,scIndex=0;
????????????? drIndex < destinationTable.Rows.Count
????????????? && scIndex < sourceColumnsCount; drIndex++, scIndex++)
???????????? {
????????????? destinationTable.Rows[drIndex][dcIndex] = mm.Tables[0].Rows[srIndex][scIndex];
???????????? }
??????????? }
??????????? #endregion
??????????? destinationDataSet.Tables.Add(destinationTable);
??????????? return destinationDataSet;
?????????? }
?????????? catch (Exception ex)
?????????? {
??????????? MessageBox.Show(ex.ToString());
?????????? }
????????? }
????????? #endregion
???????? }
??}
?
第四版
?
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace DataSetConvert
{
??? public partial class Form1 : Form
??? {
??????? public Form1()
??????? {
??????????? InitializeComponent();
??????? }
??????? private void RowtoCollumn()
??????? {
??????????? DataSet sourceDataSet = new DataSet();
??????????? DataSet destinationDataSet = new DataSet();
??????????? int sourceRowCount = sourceDataSet.Tables[0].Rows.Count;
??????????? int destinationColCount = sourceRowCount;
??????????? int sourceColCount = sourceDataSet.Tables[0].Columns.Count;
??????????? int destinationRowCount = sourceColCount;
??????????? for(int i=0;i<destinationRowCount;i++)
??????????????????? for (int j=0; j < destinationColCount; j++)
??????????????????? {
??????????????????????? destinationDataSet.Tables[0].Rows[i][j]=sourceDataSet.Tables[0].Rows[j][i];
??????????????????? }??
????????
???????? }
??? }
}
?
第一版和第二版是基于 web做的第一版可以做為class和dll?第二版只可以做class?我試過生成dll 不行 第三版和第四版 是我朋友和他的項目經理做的 是在windows form 中做的