gridview columns from more than one sql table

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Hi,
i have table for topics which contains topicTitle, periodId but i want to use period name from other table instead of periodId and i want to add url to topic title in the gridview, how can i do that ? i am using asp.net c#
thanks

Posted 2-May-13 2:59am

Salah Abualrob

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KM Perumal 2-May-13 9:09am

post ur code

Salah Abualrob 2-May-13 9:14am

i have to get each periodId from gridview and then retrieve period for each one of then
this code for the first table, but i dont know what to do now!
if (Session["MenuItem"] != null)
{
string s = Session["MenuItem"].ToString();
int TypeId = getTypeId(Session["MenuItem"].ToString());
Adapter = new SqlDataAdapter("SELECT Title,AgeId FROM Subjects WHERE CId = '" + TypeId + "'", con);
Adapter.Fill(ds, "Subjects");
Adapter.Dispose();
GridView1.DataSource = ds.Tables["Subjects"];
GridView1.DataBind();
}

Member 9581488 2-May-13 9:17am

if you have two tables then you should use join!
http://www.w3schools.com/sql/sql_join.asp
the above url might help you!

2 solutions

Solution 1

Use Inner Join
Inner join Examable[^]

Posted 2-May-13 3:20am

KM Perumal

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adriancs · Accepted Answer · 2013-05-02T03:34:00

Solution 2

example from what KM Perumal suggested:

SQL

SELECT a.topicid, a.periodid, b.topicTitle, c.periodName FROM myTable a
INNER JOIN topic b ON a.topicid = b.topicid
INNER JOIN period c ON a.periodid = c.periodid;

Posted 2-May-13 3:34am

adriancs

Updated 2-May-13 3:35am

v2

Comments

Salah Abualrob 2-May-13 9:58am

Subjects table:
SubjectId,Title,Content,UserId,AgeId,ClassificationId

AgePeriods table:
AgePeriodId,Period

and this select statment which i wrote:
"SELECT Subjects.SubjectId,Subjects.UserId,AgePeriods.Period From Subjects WHERE CId = '" + TypeId + "' INNER JOIN AgePeriods ON Subjects.CID = AgePeriods.AgePeriodId ORDER BY Subjects.SubjectId"

but it says "System.Data.SqlClient.SqlException: Incorrect syntax near the keyword 'INNER'.", what's wrong ?!

Member 9581488 2-May-13 11:15am

SELECT Subjects.SubjectId,Subjects.UserId,AgePeriods.Period From Subjects
INNER JOIN AgePeriods ON Subjects.CID = AgePeriods.AgePeriodId
WHERE CId = '" + TypeId + "'
ORDER BY Subjects.SubjectId

Use above query

Salah Abualrob 2-May-13 18:15pm

Thanks all, solved :)