No data appear on my datagridview when using dataset in c#, what am i missing here?

Question

SqlCommand cmd = new SqlCommand("Select sur_accounttype from tsys_user",conSQL ) ;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds,"tsys_user");
dataGridView1.DataSource = ds;
ds.Dispose();

Answer 1

Remove this from your code

ds.Dispose();

ds.Dispose actually doesn't do anything . The problem is with specifying the datasource to a table in the dataset.

dataGridView1.DataSource = ds.Tables[0].DefaultView;

Answer 2

Try to set DataMember property.

dataGridView1.DataSource = ds;
dataGridView1.DataMember="tsys_user";

Or create a DataTable and populate it.

DataTable dt=new DataTable();
da.Fill(dt);
dataGridView1.DataSource = dt;

Answer 3

将数据集添加到网格中后，便要对其进行处置