/// <summary>
/// Loads and displays a data table in the grid.
/// </summary>
/// <param name="sFilePath">The path to the data table file.</param>
public void LoadTable(string sFilePath)
{
if (m_loadedTable != null)
{
UnloadTable();
}
m_loadedTable = new Table(sFilePath);
m_lastLoadedTableFilePath = sFilePath;
if (m_loadedTable.FileSize >= (50 * 1024 * 1024))
{
if (MessageBox.Show("The selected file is exceptionally large and could take a long time to load. Would you like to continue?",
"Warning!", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) != DialogResult.Yes)
{
goto Cancel;
}
}
if (Settings.UseExternalDescriptors && !Descriptors.IsFileLoaded)
{
SetStatusText("Loading Definitions...");
Descriptors.Load(Settings.ExternalDescriptorsFile);
}
SetStatusText("Loading Table...");
m_loadedTable.ReadFile();
m_loadedTable.ReadHeader();
if (!m_loadedTable.IsValid)
{
MessageBox.Show("The loaded table did not match the expected file format!",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
goto Cancel;
}
m_loadedTable.ReadColumns();
if (Settings.UseExternalDescriptors && Descriptors.ExistsForTable(ref m_loadedTable))
{
Descriptors.Apply(ref m_loadedTable);
}
m_loadedTable.ReadRows();
m_loadedTable.CloseFile();
if (m_loadedTable.ColumnCount == 0)
{
MessageBox.Show("The loaded table did not contain any columns!",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
goto Cancel;
}
if (m_loadedTable.RowCount == 0)
{
MessageBox.Show("The loaded table did not contain any rows!",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
goto Cancel;
}
MenuStrip_File_Export.Enabled = true;
MenuStrip_File_Close.Enabled = true;
MenuStrip_View_NextPage.Enabled = true;
MenuStrip_View_PreviousPage.Enabled = true;
MenuStrip_View_ViewPage.Enabled = true;
StatusStrip_PageNumberLabel.Visible = true;
TableGridView.Columns.Add("RowIndexColumn", "<Index>");
TableGridView.Columns[0].SortMode = DataGridViewColumnSortMode.NotSortable;
TableGridView.Columns[0].Visible = MenuStrip_View_DisplayRowIndex.Checked;
for (int i = 0; i < (int)m_loadedTable.ColumnCount; i++)
{
string sColumnName = m_loadedTable.Columns[i].Name;
TableGridView.Columns.Add(sColumnName + "Column", sColumnName);
TableGridView.Columns[i + 1].SortMode = DataGridViewColumnSortMode.NotSortable;
}
SetRowsPerPage(m_rowsPerPage);
SetPageNumber(1);
SetStatusText("Viewing Table: {0}.tbl", m_loadedTable.TableName);
return;
Cancel:
SetStatusText("Ready");
}