private void showTarget()
{
if (Target == null)
{
return;
}
Target.RemoveAll(it => it.ColumnName.ToUpper() == "FID" || it.ColumnName.ToUpper() == "PROJECTID");
for (int i = 0; i < Target.Count; i++)
{
ColumnTargetItem item = new ColumnTargetItem();
item.ColumnName = Target[i].ColumnName;
item.ColumnValue = Target[i].Comments;
item.DataType = Target[i].DataType;
item.NullAble = Target[i].NullAble;
item.cbpk.Click += cbpk_Click;
item.Index = i;
if (_businessPk.Contains(item.ColumnName))
{
item.cbpk.IsChecked = true;
}
Canvas.SetTop(item, 30 * i);
Canvas.SetLeft(item, 554);
root.Children.Add(item);
targetItemList.Add(item);
}
}
private void ColumnTargetItem_MouseUp(object sender, MouseButtonEventArgs e)
{
targetItem = sender as ColumnTargetItem;
tempLine.X2 = getEndLocation().Width;
tempLine.Y2 = getEndLocation().Height;
sourceItem = null;
targetItem = null;
tempLine = null;
}
private void root_MouseUp(object sender, MouseButtonEventArgs e)
{
var p = e.GetPosition(root);
// 已选中项，红框显示，无法形成链接
VisualTreeHelper.HitTest(root, null, f =>
{
var element = f.VisualHit;
if (element is Border)
{
object tag = ((Border)element).Tag;
if (tag != null)
{
string columnName = tag.ToString();
var target = targetItemList.FirstOrDefault(item => item.ColumnName == columnName);
if (target != null && sourceItem != null)
{
targetItem = target;
if (!ColumnMap.ContainsKey(targetItem.ColumnName))
{
drawLine(sourceItem.ColumnName, targetItem.ColumnName);
ColumnMap.Add(targetItem.ColumnName, sourceItem.ColumnName);
targetItem.ColumnValue = sourceItem.ColumnName;
TableDAL.Comment(TableName, targetItem.ColumnName, sourceItem.ColumnName);
}
}
}
}
return(HitTestResultBehavior.Continue);
}, new PointHitTestParameters(p));
// 未选中项，记录选中项，画线
root.ReleaseMouseCapture();
root.Children.Remove(tempLine);
tempLine = null;
sourceItem = null;
}
