protected override void OnLoad(EventArgs e)
{
// Initialize the form.
this.AutoSize = true;
this.Controls.Add(this.dataGridView1);
this.Text = "DataGridView virtual-mode just-in-time demo";
// Complete the initialization of the DataGridView.
this.dataGridView1.Size = new Size(800, 250);
this.dataGridView1.Dock = DockStyle.Fill;
this.dataGridView1.VirtualMode = true;
this.dataGridView1.ReadOnly = true;
this.dataGridView1.AllowUserToAddRows = false;
this.dataGridView1.AllowUserToOrderColumns = false;
this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
this.dataGridView1.CellValueNeeded += new DataGridViewCellValueEventHandler(dataGridView1_CellValueNeeded);
// Create a DataRetriever and use it to create a DataGridViewCache object
// and to initialize the DataGridView columns and rows.
try
{
DataRetriever retriever = new DataRetriever(m_DBCon, table, "select * from tbLog");
memoryCache = new DataGridViewCache(retriever, 16);
foreach (DataColumn column in retriever.Columns)
{
dataGridView1.Columns.Add(column.ColumnName, column.ColumnName);
}
this.dataGridView1.RowCount = retriever.RowCount;
}
catch (MySqlException ex)
{
cErr.showError(ex, "Connection could not be established. " +
"Verify that the connection string is valid.");
Application.Exit();
}
// Adjust the column widths based on the displayed values.
this.dataGridView1.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.DisplayedCells);
base.OnLoad(e);
}