public TableItemBase LastClickItem = null; // 最近一次click选择过的Item对象
public void SelectItem(TableItemBase element,
bool bClearOld)
{
if (bClearOld == true)
{
for (int i = 0; i < this.Items.Count; i++)
{
TableItemBase cur_element = this.Items[i];
if (cur_element == element)
{
continue; // 暂时不处理当前行
}
if ((cur_element.State & ItemState.Selected) != 0)
{
cur_element.State -= ItemState.Selected;
this.InvalidateLine(cur_element);
}
}
}
// 选中当前行
if ((element.State & ItemState.Selected) == 0)
{
element.State |= ItemState.Selected;
this.InvalidateLine(element);
}
this.LastClickItem = element;
}
void RefreshLineColor()
{
for (int i = 0; i < this.Items.Count; i++)
{
TableItemBase item = this.Items[i];
item.SetLineColor();
}
}
public void RangeSelectItem(TableItemBase element)
{
TableItemBase start = this.LastClickItem;
int nStart = this.Items.IndexOf(start);
if (nStart == -1)
{
return;
}
int nEnd = this.Items.IndexOf(element);
if (nStart > nEnd)
{
// 交换
int nTemp = nStart;
nStart = nEnd;
nEnd = nTemp;
}
for (int i = nStart; i <= nEnd; i++)
{
TableItemBase cur_element = this.Items[i];
if ((cur_element.State & ItemState.Selected) == 0)
{
cur_element.State |= ItemState.Selected;
this.InvalidateLine(cur_element);
}
}
// 清除其余位置
for (int i = 0; i < nStart; i++)
{
TableItemBase cur_element = this.Items[i];
if ((cur_element.State & ItemState.Selected) != 0)
{
cur_element.State -= ItemState.Selected;
this.InvalidateLine(cur_element);
}
}
for (int i = nEnd + 1; i < this.Items.Count; i++)
{
TableItemBase cur_element = this.Items[i];
if ((cur_element.State & ItemState.Selected) != 0)
{
cur_element.State -= ItemState.Selected;
this.InvalidateLine(cur_element);
}
}
}
public void SelectAll()
{
for (int i = 0; i < this.Items.Count; i++)
{
TableItemBase cur_element = this.Items[i];
if ((cur_element.State & ItemState.Selected) == 0)
{
cur_element.State |= ItemState.Selected;
}
}
this.Invalidate();
}
internal void InvalidateLine(TableItemBase item)
{
Point p = this.tableLayoutPanel_content.PointToScreen(new Point(0, 0));
Rectangle rect = item.label_color.RectangleToScreen(item.label_color.ClientRectangle);
rect.Width = this.tableLayoutPanel_content.DisplayRectangle.Width;
rect.Offset(-p.X, -p.Y);
rect.Height = (int)this.Font.GetHeight() + 8; // 缩小刷新高度
this.tableLayoutPanel_content.Invalidate(rect, false);
// this.tableLayoutPanel_content.Invalidate();
}
public void ToggleSelectItem(TableItemBase element)
{
// 选中当前行
if ((element.State & ItemState.Selected) == 0)
{
element.State |= ItemState.Selected;
}
else
{
element.State -= ItemState.Selected;
}
this.InvalidateLine(element);
this.LastClickItem = element;
}
// 将全部行的状态恢复为普通状态
void ResetLineState()
{
for (int i = 0; i < this.Items.Count; i++)
{
TableItemBase item = this.Items[i];
if ((item.State & ItemState.ReadOnly) != 0)
{
item.State = ItemState.Normal | ItemState.ReadOnly;
}
else
{
item.State = ItemState.Normal;
}
}
this.Invalidate();
}
public void InsertNewLine(int index,
TableItemBase line,
bool bFireEnvent)
{
this.DisableUpdate(); // 防止闪动
try
{
#if NO
RowStyle style = new RowStyle();
//style.Height = 26;
//style.SizeType = SizeType.Absolute;
this.tableLayoutPanel_content.RowStyles.Insert(index + RESERVE_LINES, style);
#endif
Debug.Assert(this.tableLayoutPanel_content.RowStyles.Count == 1, "");
this.tableLayoutPanel_content.RowCount += 1;
Debug.Assert(this.tableLayoutPanel_content.RowStyles.Count == 1, "");
line.InsertToTable(this.tableLayoutPanel_content, index);
this.Items.Insert(index, line);
line.State = ItemState.New;
if (bFireEnvent == true)
{
this.FireTextChanged();
}
Debug.Assert(this.tableLayoutPanel_content.RowStyles.Count == 1, "");
}
finally
{
this.EnableUpdate();
}
}