for loop or for each or while using display a DataGridView

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DataGridview1 output is:
1
2
3
4
5
6
7
8
9

C#

for (int i=0; datagridview1.row[i].column[0]<=9; i++)
{

            SqlConnection con1 = new SqlConnection(constr);
            con1.Open();
            string sql = "select Name from table_name where id=datagridview1.row[i].column[0]"
            SqlCommand cmd = new SqlCommand (sql, con1);
            SqlDataAdapter daa = new SqlDataAdapter(cmd);
            DataSet dss = new DataSet();
            daa.Fill(dss, "table_name");
            gridview_datacl.DataSource = dss.Tables["table_name"];

}

this values will be display on DataGridView2(gridview_datacl)

out put is displayed only last value :
Name:
-------
Sai

BUT I WANT THE OUTPUT is Given BELOW:

Name
------
Anand
baskar
kumar
bharath
Ganesh
Selva
Dachu
naveen
sai

Posted 17-Sep-15 22:31pm

Member 10385331

Updated 18-Sep-15 19:16pm

PIEBALDconsult

v3

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Naveen.Sanagasetti · Answer 1 · 2015-09-17T22:44:00

Hi,

Why are you calling select statement each and every loop, instead of that use "IN" operator and call the listed people and store that information in one DataTable and display the same in your DataGrid.

EX:

C#

string str="";
for(int i=0; i <=9; i++)
{
    str=str+","+Convert.Tostring(i);
}
str=str.Remove(0);

Now, wrote your select statement like below

SQL

select * from tablename where Id IN ( str );

and store that result into one DataTable and bind that DataTable into your DataGridView.

Hope this will helpful to you...

Abhinav S · Answer 2 · 2015-09-17T23:11:00

Solution 2

You know you have to get the top 10 rows. Use id and achieve this in one line -
select Name from table_name where id<=9;

Posted 17-Sep-15 23:11pm

Abhinav S