使用gridview数据绑定后的条件更改列值

Question

我使用join从三个表格中显示数据Gridview。 但我想改变使用条件的领域。

我把我的“状态”保持为“1”和“0”。 对于“1”，我想显示“选定”，对于“0”，我想显示“拒绝”。

下面是我的代码：

void databind() 
{ 
    string CS = ConfigurationManager.ConnectionStrings["myConnectionString"].ConnectionString; 
    using (SqlConnection con = new SqlConnection(CS)) 
    { 
     con.Open(); 
     SqlCommand cmd = new SqlCommand("select a.applicant_id as 'Applicant ID',a.applicant_name as 'Name',a.status as 'Status',b.staff_Name as 'Reviewed by',c.course_name as 'Course' from tblApplicant a left outer join tblStaff b on a.staff_id=b.staff_id left outer join tblCourse c on a.course_id=c.course_id", con); 
     SqlDataReader dr = cmd.ExecuteReader(); 
     GridView1.DataSource = dr; 
     GridView1.DataBind(); 
    } 
} 

Answer 1

使用与case when这条线

SqlCommand cmd = new SqlCommand("select a.applicant_id as 'Applicant ID',a.applicant_name as 'Name',case when a.status=0 then 'Rejected' else 'Selected' end as 'Status',b.staff_Name as 'Reviewed by',c.course_name as 'Course' from tblApplicant a left outer join tblStaff b on a.staff_id=b.staff_id left outer join tblCourse c on a.course_id=c.course_id", con);