how to add data from datatable in combobox without using adapter

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hi all ,

i have to fill my two combobox1 and combobox2, from datatable column1 and column2. but i do not want to use adapter.plz help me out urgent.

thanks in advance!

Posted 7-Nov-11 23:27pm

mkcm2011

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mkcm2011 8-Nov-11 5:33am

plz help me asap!!!!!!!!!!!!!

3 solutions

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Menon Santosh · Answer 1 · 2011-11-07T23:39:00

Solution 1

C#

DataTable dt = new DataTable();
            SqlDataReader rdr = null;
            try
            {
                SqlCommand cmd = new SqlCommand("select id, name from table", ClsMSetting.Con);
                 rdr = cmd.ExecuteReader();
                dt.TableName = "mydata";
                dt.Load(rdr);
                rdr.Close();
		//cb1 is a combo
		cb1.DisplayMember = "name";
            	cb1.ValueMember = "id";
                
            }
            catch (Exception Ex) { }

Posted 7-Nov-11 23:39pm

Menon Santosh

Updated 7-Nov-11 23:43pm

v2

Comments

Menon Santosh 8-Nov-11 5:41am

ClsMSetting.Con is a connection

mkcm2011 8-Nov-11 5:48am

if i want for 2 combobox then what shud i do with .Valuemember and.Displaymember

Menon Santosh 8-Nov-11 6:01am

What do u want, insert same data in combo or diffrent data

mkcm2011 8-Nov-11 6:41am

SqlCommand mycommand = new SqlCommand("select id, name from tablename", myCon);
SqlDataReader dr = mycommand.ExecuteReader();

while (dr.Read())
{
id_cmb.Items.Add(dr.GetValue(0));
name_cmb.Items.Add(dr.GetValue(1));

its working....for me but i want unique data shud be in my combobox...how shud i do.....plz reply

Menon Santosh 8-Nov-11 6:54am

Use distinct in query

mkcm2011 · Answer 2 · 2011-11-08T00:44:00

C#

SqlCommand mycommand = new SqlCommand("select id, name from tablename", myCon);
                SqlDataReader dr = mycommand.ExecuteReader();

                while (dr.Read())
                {
                  id_cmb.Items.Add(dr.GetValue(0));
                  name_cmb.Items.Add(dr.GetValue(1));
}

But its nt working properly.....the combobox are not filling with unique data

arya1685 · Answer 3 · 2011-11-08T01:05:00

SqlCommand mycommand = new SqlCommand("select id, name from tablename", myCon);
                SqlDataReader dr = mycommand.ExecuteReader();
 
                while (dr.Read())
                {
                  id_cmb.Items.Add(dr.GetValue(0));
                  name_cmb.Items.Add(dr.GetValue(1));
}

Your Above SQL Query not satisfying your condition whatever you want......
If you want to display distinct value in combobox then you will not able to find unique ID for that records (if u have same name with different ID).........So either change your database table with unique Name and ID or don't select ID

select distinct name from tablename

how to add data from datatable in combobox without using adapter

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