/// <summary>
/// Calculate the Sums of the summary columns
/// </summary>
private void calcSummaries()
{
foreach (ReadOnlyTextBox roTextBox in sumBoxHash.Values)
{
if (roTextBox.IsSummary)
{
roTextBox.Tag = 0;
roTextBox.Text = "0";
roTextBox.Invalidate();
}
}
if (dgv.SummaryColumns != null && dgv.SummaryColumns.Length > 0 && sumBoxHash.Count > 0)
{
foreach (DataGridViewRow dgvRow in dgv.Rows)
{
foreach (DataGridViewCell dgvCell in dgvRow.Cells)
{
foreach (DataGridViewColumn dgvColumn in sumBoxHash.Keys)
{
if (dgvCell.OwningColumn.Equals(dgvColumn))
{
ReadOnlyTextBox sumBox = (ReadOnlyTextBox)sumBoxHash[dgvColumn];
if (sumBox != null && sumBox.IsSummary)
{
if (dgvCell.Value != null && !(dgvCell.Value is DBNull))
{
if (IsInteger(dgvCell.Value))
{
sumBox.Tag = Convert.ToInt64(sumBox.Tag) + Convert.ToInt64(dgvCell.Value);
}
else if (IsDecimal(dgvCell.Value))
{
sumBox.Tag = Convert.ToDecimal(sumBox.Tag) + Convert.ToDecimal(dgvCell.Value);
}
sumBox.Text = string.Format("{0}", sumBox.Tag);
sumBox.Invalidate();
}
}
}
}
}
}
}
}
/// <summary>
/// Resize the summary Boxes depending on the
/// width of the Columns of the DataGridView
/// </summary>
private void resizeSumBoxes()
{
this.SuspendLayout();
if (sumBoxHash.Count > 0)
{
try
{
int rowHeaderWidth = dgv.RowHeadersVisible ? dgv.RowHeadersWidth - 1: 0;
int sumLabelWidth = dgv.RowHeadersVisible ? dgv.RowHeadersWidth - 1 : 0;
int curPos = rowHeaderWidth;
if (dgv.DisplaySumRowHeader && sumLabelWidth > 0)
{
if (dgv.RightToLeft == RightToLeft.Yes)
{
if (sumRowHeaderLabel.Dock != DockStyle.Right)
{
sumRowHeaderLabel.Dock = DockStyle.Right;
}
}
else
{
if (sumRowHeaderLabel.Dock != DockStyle.Left)
{
sumRowHeaderLabel.Dock = DockStyle.Left;
}
}
}
else
{
if (sumRowHeaderLabel.Visible)
{
sumRowHeaderLabel.Visible = false;
}
}
int iCnt = 0;
Rectangle oldBounds;
foreach (DataGridViewColumn dgvColumn in SortedColumns) //dgv.Columns)
{
ReadOnlyTextBox sumBox = (ReadOnlyTextBox)sumBoxHash[dgvColumn];
if (sumBox != null)
{
oldBounds = sumBox.Bounds;
if (!dgvColumn.Visible)
{
sumBox.Visible = false;
continue;
}
int from = curPos - dgv.HorizontalScrollingOffset;
int width = dgvColumn.Width + (iCnt == 0 ? 0 : 0);
if (from < rowHeaderWidth)
{
width -= rowHeaderWidth - from;
from = rowHeaderWidth;
}
if (from + width > this.Width)
{
width = this.Width - from;
}
if (width < 4)
{
if (sumBox.Visible)
{
sumBox.Visible = false;
}
}
else
{
if (this.RightToLeft == RightToLeft.Yes)
{
from = this.Width - from - width;
}
if (sumBox.Left != from || sumBox.Width != width)
{
sumBox.SetBounds(from, 0, width, 0, BoundsSpecified.X | BoundsSpecified.Width);
}
if (!sumBox.Visible)
{
sumBox.Visible = true;
}
}
curPos += dgvColumn.Width + (iCnt == 0 ? 0 : 0);
if (oldBounds != sumBox.Bounds)
{
sumBox.Invalidate();
}
}
iCnt++;
}
}
finally
{
this.ResumeLayout();
}
}
}