ASP. NET background page modification highlights

(1) Add "= select =" in the drop-down list"

Solution:

1.

 
Protected void page_load (Object sender, eventargs e) {If (! Ispostback) {dataset DS = new dataset (); string tablename = "department_info"; DS = getdataset (DS, tablename); this. ddl_post.datasource = Ds; ddl_post.datatextfield = "departmentname"; ddl_post.datavaluefield = "departmentname"; this. ddl_post.databind (); // Add to row 1st this. ddl_department.items.insert (0, "= select ="); this. ddl_department.items.findbytext ("= select = "). selected = true;
}
 

2.

 
Protected void page_load (Object sender, eventargs e) {If (! Ispostback) {dataset DS = new dataset (); string tablename = "department_info"; DS = getdataset (DS, tablename); this. ddl_post.datasource = Ds; ddl_post.datatextfield = "departmentname"; ddl_post.datavaluefield = "departmentname"; this. ddl_post.databind (); datatable dt = Ds. tables [0]; datarow DR = DT. newrow (); Dr [0] = "= select ="; // Add it to line 1 DT. rows. insertat (DR, 0); this. ddl_post.datasource = DT ;}
 

(2) When the page cannot be read

 

Data source to be bound

 

 

(3) Time Conversion

Modify the page time conversion format to 2010/01/01

Solution:

 

In the gridview, the time conversion format is 2010/01/01.

Solution: