大家好，又见面了，我是你们的朋友全栈君。 private void button1_Click(object sender, EventArgs e)
{
OleDbConnection conn = new OleDbConnection(“Provider = Microsoft.Jet.OLEDB.4.0;Data Source = fruit.mdb”);
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandText = “select * from fruit”;
conn.Open();
OleDbDataReader dr = cmd.ExecuteReader();
DataTable dt = new DataTable();
if (dr.HasRows)
{
for(int i=0; i<dr.FieldCount; i++)
{
dt.Columns.Add(dr.GetName(i));
}
dt.Rows.Clear();
}
while(dr.Read())
{
DataRow row = dt.NewRow();
for(int i=0; i<dr.FieldCount;i++)
{
row[i] = dr[i];
}
dt.Rows.Add(row);
}
cmd.Dispose();
conn.Close();
dataGridView1.DataSource = dt;
}
}
}
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