/// <summary>
/// the fill grid method fills the grid with the data from the DataSourceManager
/// It takes the grouping style into account, if it is set.
/// </summary>
private void FillGrid(IOutlookGridGroup groupingStyle)
{
ArrayList list;
OutlookGridRow row;
this.Rows.Clear();
// start filling the grid
if (dataSource == null)
{
return;
}
else
{
list = dataSource.Rows;
}
if (list.Count <= 0)
{
return;
}
// this block is used of grouping is turned off
// this will simply list all attributes of each object in the list
if (groupingStyle == null)
{
foreach (DataSourceRow r in list)
{
row = (OutlookGridRow)this.RowTemplate.Clone();
foreach (object val in r)
{
DataGridViewCell cell = new DataGridViewTextBoxCell();
cell.Value = val.ToString();
row.Cells.Add(cell);
}
Rows.Add(row);
}
}
// this block is used when grouping is used
// items in the list must be sorted, and then they will automatically be grouped
else
{
IOutlookGridGroup groupCur = null;
object result = null;
int counter = 0; // counts number of items in the group
foreach (DataSourceRow r in list)
{
row = (OutlookGridRow)this.RowTemplate.Clone();
result = r[groupingStyle.Column.Index];
if (groupCur != null && groupCur.CompareTo(result) == 0) // item is part of the group
{
row.Group = groupCur;
counter++;
}
else // item is not part of the group, so create new group
{
if (groupCur != null)
{
groupCur.ItemCount = counter;
}
groupCur = (IOutlookGridGroup)groupingStyle.Clone(); // init
groupCur.Value = result;
row.Group = groupCur;
row.IsGroupRow = true;
row.Height = groupCur.Height;
row.CreateCells(this, groupCur.Value);
Rows.Add(row);
// add content row after this
row = (OutlookGridRow)this.RowTemplate.Clone();
row.Group = groupCur;
counter = 1; // reset counter for next group
}
foreach (object obj in r)
{
DataGridViewCell cell = new DataGridViewTextBoxCell();
cell.Value = obj.ToString();
row.Cells.Add(cell);
}
Rows.Add(row);
groupCur.ItemCount = counter;
}
}
}