使用gridview数据绑定后的条件更改列值
问题描述:
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。使用gridview数据绑定后的条件更改列值
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();
}
}
答
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);