asp.net - How to rearrange the table by rows and column in c# -


i have table this

+---------+-----------+-----------+ | product | product-a | product-b | +---------+-----------+-----------+ |       | 0         | 1         | +---------+-----------+-----------+ | b       | 2         | 3         | +---------+-----------+-----------+

i want rearrange table this

+-----------+-----------+--------+ | product-a | product-b | output | +-----------+-----------+--------+ |         |         | 0      | +-----------+-----------+--------+ |         | b         | 1      | +-----------+-----------+--------+ | b         |         | 2      | +-----------+-----------+--------+ | b         | b         | 3      | +-----------+-----------+--------+

here have created header this

string columnname = "";             datatable dt1 = new datatable();             (int = 0; < dt.rows.count+1; i++)             {                  string getlist = "";                 if (i == 0)                 {                     columnname = dt.columns[i].columnname;                     getlist = dt.rows[i].itemarray[0].tostring();                  }                  else if (i < dt.rows.count)                 {                      getlist = dt.rows[i].itemarray[0].tostring();                  }                 else if (i < dt.rows.count+1)                 {                     getlist = "output";                  }                 dt1.columns.add(columnname + "-" + getlist, typeof(string));             }

i strucking add data in table can give tips add table.

this way write value in data table

 (int = 0; < dt.rows.count; i++)             {                 string producta = dt.rows[i].itemarray[0].tostring();                 string output = "";                 string productb = "";                 (int j = 0; j < dt.rows.count; j++)                 {                     if (j == 0)                     {                         productb = dt.columns[j + 1].columnname;                          output =  dt.rows[i][j+1].tostring();                     }                     else                     {                         productb = dt.columns[j+1].columnname;                         output = dt.rows[i][j+1].tostring();                      }                      dt1.rows.add(producta, productb, output);                  }              }

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