In ASP. net2.0, The gridview Control completes code to sort template columns! (Code debugging passed)

1 Protected   Void Page_load ( Object Sender, eventargs E)
2 {
3 If ( ! Ispostback)
4 {
5 // Bind data on the initialization page to the gridview
6 Getdataset ();
7 Gridviewbind ();
8 }
9 }
10
11 ///   <Summary>
12 /// Generate DS Dataset
13 ///   </Summary>
14 Private Dataset getdataset ()
15 {
16 // String strsql = "select * From Manager. db1 ";
17 String Strsql =   " Select * From Manager. db1 " ;
18 Dataset DS = Conn. getds (strsql );
19 Return DS;
20 }
21
22 ///   <Summary>
23 /// Bind data to the gridview
24 ///   </Summary>
25 Private   Void Gridviewbind ()
26 {
27 This . Gridview1.datasource =   This . Getdataset (). Tables [ 0 ]. Defaultview;
28 This . Gridview1.databind ();
29 }
30 ///   <Summary>
31 /// Stores the current sorting status of selected columns
32 ///   </Summary>
33 Public Sortdirection gridviewsortction ction
34 {
35 Get
36 {
37 If (Viewstate [ " Sortdirection " ] =   Null )
38 Viewstate [ " Sortdirection " ] = Sortdirection. ascending;
39 Return (Sortdirection) viewstate [ " Sortdirection " ];
40 }
41 Set {Viewstate [ " Sortdirection " ] = Value ;}
42 }
43
44 Protected   Void Gridviewappssorting ( Object Sender, gridviewsorteventargs E)
45 {
46 String Sortexpression = E. sortexpression;
47 If (Gridviewsortction ction = Sortdirection. ascending)
48 {
49 Gridviewsortction ction = Sortdirection. Descending;
50 Sortgridview (sortexpression, " Desc " );
51 }
52 Else
53 {
54 Gridviewsortction ction = Sortdirection. ascending;
55 Sortgridview (sortexpression, " ASC " );
56 }
57 }
58
59 ///   <Summary>
60 /// Sort and bind
61 ///   </Summary>
62 Private   Void Sortgridview ( String Sortexpression, String Direction)
63 {
64 Datatable dt =   This . Getdataset (). Tables [ 0 ];
65 Dataview dv =   New Dataview (DT );
66
67 DV. Sort = Sortexpression +   "   "   + Direction;
68
69 Gridview1.datasource = DV;
70 Gridview1.databind ();
71 }