public void ResizeColumn(int delta)
{
if (this.resizedColumn == null && this.resizedNode != null)
{
float constrainedWidth = this.resizedNode.GetConstrainedWidth(this.resizedNode.OriginalWidth + (float)delta);
float num1 = this.resizedNode.Bounds.Width - constrainedWidth;
float num2 = 0.0f;
float num3 = 0.0f;
float num4 = 0.0f;
for (int index = this.resizedNode.Parent.Children.IndexOf(this.resizedNode) + 1; index < this.resizedNode.Parent.Children.Count; ++index)
{
num2 += this.resizedNode.Parent.Children[index].MinWidth;
if ((double)num3 >= 0.0)
{
num3 += this.resizedNode.Parent.Children[index].MaxWidth;
}
if ((double)this.resizedNode.Parent.Children[index].MaxWidth == 0.0)
{
num3 = -1f;
}
num4 += this.resizedNode.Parent.Children[index].Bounds.Width;
}
if ((double)num4 + (double)num1 < (double)num2)
{
num1 = num2 - num4;
}
if ((double)num3 > 0.0 && (double)num4 + (double)num1 > (double)num3)
{
num1 = num3 - num4;
}
if (this.resizedNode.Parent == this.root && this.template.AutoSizeColumnsMode == GridViewAutoSizeColumnsMode.None)
{
this.resizedNode.Bounds.Width = constrainedWidth;
}
else
{
this.resizedNode.Bounds.Width = this.resizedNode.GetConstrainedWidth(this.resizedNode.Bounds.Width - num1);
}
}
else
{
if (this.resizedColumn == null || this.resizedNode == null)
{
return;
}
ColumnGroupColumnData columnGroupColumnData = this.resizedNode.ColumnData[this.resizedColumn];
float constrainedWidth1 = columnGroupColumnData.GetConstrainedWidth(columnGroupColumnData.OriginalWidth + (float)delta);
float num1 = columnGroupColumnData.Bounds.Width - constrainedWidth1;
float num2 = 0.0f;
float num3 = 0.0f;
float num4 = 0.0f;
for (int index = this.resizedNode.Rows[columnGroupColumnData.Row].ColumnNames.IndexOf(this.resizedColumn.Name) + 1; index < this.resizedNode.Rows[columnGroupColumnData.Row].ColumnNames.Count; ++index)
{
GridViewColumn column = (GridViewColumn)this.template.Columns[this.resizedNode.Rows[columnGroupColumnData.Row].ColumnNames[index]];
if (this.owner.ColumnIsVisible(column) || this.owner.IgnoreColumnVisibility)
{
num2 += this.resizedNode.ColumnData[column].MinWidth;
if ((double)num3 >= 0.0)
{
num3 += this.resizedNode.ColumnData[column].MaxWidth;
}
if ((double)this.resizedNode.ColumnData[column].MaxWidth == 0.0)
{
num3 = -1f;
}
num4 += this.resizedNode.ColumnData[column].Bounds.Width;
}
}
if ((double)num4 + (double)num1 < (double)num2)
{
num1 = num2 - num4;
}
if ((double)num3 > 0.0 && (double)num4 + (double)num1 > (double)num3)
{
num1 = num3 - num4;
}
float constrainedWidth2 = columnGroupColumnData.GetConstrainedWidth(columnGroupColumnData.Bounds.Width - num1);
columnGroupColumnData.Bounds.Width = constrainedWidth2;
}
}
private SizeF ArrangeGroupRow(
GridViewColumnGroupRow row,
ColumnGroupLayoutNode node,
PointF location,
float availableWidth)
{
float num1 = 0.0f;
foreach (string columnName in (Collection <string>)row.ColumnNames)
{
GridViewColumn column = (GridViewColumn)this.template.Columns[columnName];
if (this.owner.ColumnIsVisible(column) || this.owner.IgnoreColumnVisibility)
{
ColumnGroupColumnData columnGroupColumnData = node.ColumnData[column];
num1 += columnGroupColumnData.OriginalWidth;
}
}
float num2 = 0.0f;
float num3 = (float)row.MinHeight;
foreach (string columnName in (Collection <string>)row.ColumnNames)
{
GridViewColumn column = (GridViewColumn)this.template.Columns[columnName];
if (this.owner.ColumnIsVisible(column) || this.owner.IgnoreColumnVisibility)
{
ColumnGroupColumnData columnGroupColumnData = node.ColumnData[column];
if (this.resizedColumn != column)
{
columnGroupColumnData.Bounds.Width = columnGroupColumnData.GetConstrainedWidth(columnGroupColumnData.OriginalWidth * availableWidth / num1);
}
columnGroupColumnData.Bounds.Location = new PointF(location.X + num2, location.Y);
columnGroupColumnData.Bounds.Height = (float)column.RowSpan;
num2 += columnGroupColumnData.Bounds.Width;
num3 = Math.Max(num3, columnGroupColumnData.Bounds.Height);
num1 -= columnGroupColumnData.OriginalWidth;
availableWidth -= columnGroupColumnData.Bounds.Width;
if (column is GridViewDataColumn)
{
this.SetColumnWidthInternal(column, (int)columnGroupColumnData.Bounds.Width);
}
}
}
float width1 = 0.0f;
foreach (string columnName in (Collection <string>)row.ColumnNames)
{
GridViewColumn column = (GridViewColumn)this.template.Columns[columnName];
if (this.owner.ColumnIsVisible(column) || this.owner.IgnoreColumnVisibility)
{
ColumnGroupColumnData columnGroupColumnData = node.ColumnData[column];
if (this.resizedColumn != column)
{
float width2 = columnGroupColumnData.Bounds.Width;
columnGroupColumnData.Bounds.Width = columnGroupColumnData.GetConstrainedWidth(columnGroupColumnData.Bounds.Width + availableWidth);
availableWidth -= columnGroupColumnData.Bounds.Width - width2;
}
columnGroupColumnData.Bounds.Location = new PointF(location.X + width1, location.Y);
width1 += columnGroupColumnData.Bounds.Width;
if (column is GridViewDataColumn)
{
column.SuspendPropertyNotifications();
this.SetColumnWidthInternal(column, (int)columnGroupColumnData.Bounds.Width);
column.ResumePropertyNotifications();
}
}
}
return(new SizeF(width1, num3));
}