我有这个代码来生成一个临时树,其代码如下
object regionSale = regionValue.GetValueAsString();
if (root.Children.Count > 0)
{
if ((tmpNode.Data.Level) == (levelNested - 1))
{
var newChild = new Node
{
Data = new NodeData
{
Level = levelNested,
RegionName = elemNested.GetValueAsString(),
RegionValue = NAValue.Equals(regionSale.ToString())
? null
: (double?)regionValue.GetValueAsFloat64()
},
Parent = tmpNode
};
tmpNode.Children.Add(newChild);
tmpNode = newChild;
}
else if (tmpNode.Data.Level == levelNested)
{
var node = tmpNode.Parent;
var newChild = new Node
{
Data = new NodeData
{
Level = levelNested,
RegionName = elemNested.GetValueAsString(),
RegionValue = NAValue.Equals(regionSale.ToString())
? null
: (double?)regionValue.GetValueAsFloat64()
},
Parent = node
};
node.Children.Add(newChild);
tmpNode = newChild;
}
else
{
var parentNode = tmpNode.Parent;
while ((parentNode.Data.Level) != (levelNested - 1))
{
parentNode = parentNode.Parent;
}
var newChild = new Node
{
Data = new NodeData
{
Level = levelNested,
RegionName = elemNested.GetValueAsString(),
RegionValue = NAValue.Equals(regionSale.ToString())
? null
: (double?)regionValue.GetValueAsFloat64()
},
Parent = parentNode
};
parentNode.Children.Add(newChild);
tmpNode = newChild;
}
}
else
{
var children = new Node();
children.Data = new NodeData
{
Level = levelNested,
RegionName = elemNested.GetValueAsString(),
RegionValue = NAValue.Equals(regionSale.ToString())
? null
: (double?)regionValue.GetValueAsFloat64()
};
children.Parent = root;
root.Children.Add(children);
tmpNode = children;
}
传递给此函数的数据是根节点,如:
for (var nestedIndex = 0; nestedIndex < numofBulkValues; nestedIndex++)
{
var bulkElementNested = refBulkField.GetValueAsElement(nestedIndex);
var elemNested = bulkElementNested.GetElement(0);
var levelElement = bulkElementNested.GetElement(1);
var regionValue = bulkElementNested.GetElement(2);
var levelNested = levelElement.GetValueAsInt32();
tmpNode = GenerateTree(root, tmpNode, elemNested, regionValue, levelNested);
}
在这种情况下,我得到的数据格式为
ADSK UW EQUITY
Europe, Middle East and Africa Level=1
The Americas Level=1
U.S Level=2
Other Americas Level=2
The Asia/Pacific Level=1
Other Asia/Pacific Level=2
Japan Level=2
Reconciliation Level=1
并且有多个这样的股票。问题是这个过程需要花费很长时间才能完成9秒,但只需要16秒即可显示实际结果。是的,这是应用程序的核心,非常重要,所以不能跳过它。有没有办法减少创建这棵树的时间?
我的节点类如下:
public class Node
{
public Node()
{
}
public Node(Node node)
: this()
{
if (node == null)
return;
this.Data = new NodeData(node.Data);
if (node.Children != null)
this.Children = new List<Node>(node.Children);
this.Parent = new Node(node.Parent);
}
public NodeData Data;
public List<Node> Children = new List<Node>();
public Node Parent;
}
public class NodeData
{
public NodeData()
{
}
public NodeData(NodeData nodeData)
: this()
{
if (nodeData == null)
return;
this.RegionName = nodeData.RegionName;
this.RegionValue = nodeData.RegionValue;
this.Level = nodeData.Level;
}
public string RegionName;
public double? RegionValue;
public int Level;
}
如果我能提供更多,请告诉我。并感谢您的帮助
答案 0 :(得分:0)
好的,
所以我所做的是我在Node.cs类中进行了如下更改:
public class Node
{
public Node()
{
}
public Node(Node node)
: this()
{
if (node == null)
return;
if (node.Children != null)
this.Children = new List<Node>(node.Children);
this.Parent = new Node(node.Parent);
this.RegionName = nodeData.RegionName;
this.RegionValue = nodeData.RegionValue;
this.Level = nodeData.Level;
}
public List<Node> Children = new List<Node>();
public Node Parent;
public string RegionName;
public double? RegionValue;
public int Level;
}
此外,我已经检查了记录日志的功能,因此很少被调用的小功能(对于内部...)我已经删除了这些日志。对于900股票而言,这一切都将时间从4.30分钟缩短至约1.30分钟。但是我想问一下我能做些什么来加快速度。
还有一个问题: 对于从数据库(sqlite数据库)中提取数据的许多函数,只有1个函数,connection.Open()需要花费很多时间。这个问题可能是因为连接打开了很长时间?或者是否有可能另一个已经打开的连接,所以关闭它并开始这个连接需要时间?