DataGridView多列排序（multiple columns sorting for DataGridView）

#region  Using directives

using  System;
using  System.Drawing;
using  System.Windows.Forms;

#endregion

class  Form1 : Form
{
     private  DataGridView DataGridView1  =   new  DataGridView();
     private  FlowLayoutPanel FlowLayoutPanel1  =   new  FlowLayoutPanel();
     private  Button Button1  =   new  Button();
     private  RadioButton RadioButton1  =   new  RadioButton();
     private  RadioButton RadioButton2  =   new  RadioButton();

     //  Establish the main entry point for the application.
    [STAThreadAttribute()]
     public   static   void  Main()
    {
        Application.Run( new  Form1());
    }

     public  Form1()
    {
         //  Initialize the form.
         //  This code can be replaced with designer generated code.
        AutoSize  =   true ;
        Text  =   " DataGridView IComparer sort demo " ;

        FlowLayoutPanel1.FlowDirection  =  FlowDirection.TopDown;
        FlowLayoutPanel1.Location  =   new  System.Drawing.Point(  304 ,  0  );
        FlowLayoutPanel1.AutoSize  =   true ;

        FlowLayoutPanel1.Controls.Add( RadioButton1 );
        FlowLayoutPanel1.Controls.Add( RadioButton2 );
        FlowLayoutPanel1.Controls.Add( Button1 );

        Button1.Text  =   " Sort " ;
        RadioButton1.Text  =   " Ascending " ;
        RadioButton2.Text  =   " Descending " ;
        RadioButton1.Checked  =   true ;

        Controls.Add( FlowLayoutPanel1 );
        Controls.Add( DataGridView1 );
    }

     protected   override   void  OnLoad( EventArgs e )
    {
        PopulateDataGridView();
        Button1.Click  +=   new  EventHandler(Button1_Click);

         base .OnLoad( e );
    }

     //  Replace this with your own code to populate the DataGridView.
     private   void  PopulateDataGridView()
    {

        DataGridView1.Size  =   new  Size( 300 ,  300 );

         //  Add columns to the DataGridView.
        DataGridView1.ColumnCount  =   2 ;

         //  Set the properties of the DataGridView columns.
        DataGridView1.Columns[ 0 ].Name  =   " First " ;
        DataGridView1.Columns[ 1 ].Name  =   " Last " ;
        DataGridView1.Columns[ " First " ].HeaderText  =   " First Name " ;
        DataGridView1.Columns[ " Last " ].HeaderText  =   " Last Name " ;
        DataGridView1.Columns[ " First " ].SortMode  =  
            DataGridViewColumnSortMode.Programmatic;
        DataGridView1.Columns[ " Last " ].SortMode  =  
            DataGridViewColumnSortMode.Programmatic;

         //  Add rows of data to the DataGridView.
        DataGridView1.Rows.Add( new   string [] {  " Peter " ,  " Parker "  });
        DataGridView1.Rows.Add( new   string [] {  " James " ,  " Jameson "  });
        DataGridView1.Rows.Add( new   string [] {  " May " ,  " Parker "  });
        DataGridView1.Rows.Add( new   string [] {  " Mary " ,  " Watson "  });
        DataGridView1.Rows.Add( new   string [] {  " Eddie " ,  " Brock "  });
    }

     private   void  Button1_Click(  object  sender, EventArgs e )
    {
         if  ( RadioButton1.Checked  ==   true  )
        {
            DataGridView1.Sort(  new  RowComparer( SortOrder.Ascending ) );
        }
         else   if  ( RadioButton2.Checked  ==   true  )
        {
            DataGridView1.Sort(  new  RowComparer( SortOrder.Descending ) );
        }
    }

     private   class  RowComparer : System.Collections.IComparer
    {
         private   static   int  sortOrderModifier  =   1 ;

         public  RowComparer(SortOrder sortOrder)
        {
             if  (sortOrder  ==  SortOrder.Descending)
            {
                sortOrderModifier  =   - 1 ;
            }
             else   if  (sortOrder  ==  SortOrder.Ascending)
            {
                sortOrderModifier  =   1 ;
            }
        }

         public   int  Compare( object  x,  object  y)
        {
            DataGridViewRow DataGridViewRow1  =  (DataGridViewRow)x;
            DataGridViewRow DataGridViewRow2  =  (DataGridViewRow)y;

             //  Try to sort based on the Last Name column.
             int  CompareResult  =  System.String.Compare(
                DataGridViewRow1.Cells[ 1 ].Value.ToString(),
                DataGridViewRow2.Cells[ 1 ].Value.ToString());

             //  If the Last Names are equal, sort based on the First Name.
             if  ( CompareResult  ==   0  )
            {
                CompareResult  =  System.String.Compare(
                    DataGridViewRow1.Cells[ 0 ].Value.ToString(),
                    DataGridViewRow2.Cells[ 0 ].Value.ToString());
            }
             return  CompareResult  *  sortOrderModifier;
        }
    }
}

 

 

参考：

http://msdn.microsoft.com/en-us/library/ms171607(VS.80).aspx

http://msdn.microsoft.com/zh-cn/library/ms171608(VS.80).aspx

http://msdn.microsoft.com/en-us/library/95scxcdy.aspx

http://www.codeproject.com/KB/grid/multicolumn_sort.aspx

http://blogs.msdn.com/jfoscoding/articles/494012.aspx