DevExpress TreeList 调优_绑定数据源方式, 放弃原来的AppendNode加载数据的方式
Posted on 2011-03-11 22:31 毅无涯 阅读(860) 评论(0) 编辑 收藏 举报DevExpress TreeList加载大批量数据的时候绑定数据源 dataTable.
注意事项1： 由于一旦绑定了数据源dataTable的些许变化便在TreeList中有所体现, 所以等dataTable完全填充好了之后再绑定数据源.
注意事项2：dataTable每行的父节点ID当加载到目前为止,还没有找到那么可能就当成空了, 所以最后treelist呈现就有问题, 所以解决办法有3个, 1： 大范围数据,也就是父节点的数据一定要先于子节点在表中排列.(这个不好控制). 2： 等完全填充完datatable时再重新设置每行的父节点ID. 3：可以边填充边设置, 最后再绑定数据源, 在填充dataTable之前先解绑数据源, 即先把数据源设为空,完全填充好再重新绑定(经过测试这种方法的加载速度最快了)
参看代码如下:
public void ShowData(ForecastService.TrafficResult[] result, int iscrop, bool AllType)
{
//填充数据
try
{
ResetCtrl(AllType);
this.result = result;
treeListResult.Nodes.Clear();
treeListResult.DataSource = null; //一定要先解绑
FillTypeFirstData(result, this.dtResult);
treeListResult.DataSource = dtResult;
if (treeListResult.Nodes.Count > 0)
{
for (int i = 0; i < treeListResult.Nodes.Count; i++)
{
treeListResult.Nodes[i].HasChildren = true;
treeListResult.Nodes[i].Expanded = true;
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + ex.StackTrace);
}
}
private void FillTypeFirstData(Inspur.Forecast.ForecastService.TrafficResult[] result, DataTable dataTable)
{
try
{
dataTable.Rows.Clear();
for (int i = 0; i < result.Length; i++)
{
if (result[i].trafficType == "ALL" && result[i].city == "ALL")//全省的数据
{
DataRow dr = dataTable.NewRow();
dr["keyFieldName"] = "湖南";//设置当前行ID
dr["parentFieldName"] = DBNull.Value; //设置父节点ID
dr["维度"] = "湖南";
dr["去年基准日话务量"] = result[i].lastFir.Trim();
dr["去年预测日话务量"] = result[i].lastSec.Trim();
dr["增长幅度"] = result[i].add.Trim();
dr["今年基准日话务量"] = result[i].nowFir.Trim();
dr["今年预测日话务量"] = result[i].nowSec.Trim();
dr["目前电路数"] = result[i].count.Trim();
dr["预测2M电路数"] = result[i].fcastcount.Trim();
dr["需要新增的电路数"] = result[i].addcount.Trim();
dataTable.Rows.Add(dr);
}
else if (result[i].trafficType != "ALL" && result[i].city == "ALL" && result[i].nename == "ALL")//汇总到类型的数据
{
DataRow dr = dataTable.NewRow();
dr["keyFieldName"] = result[i].trafficType;
dr["parentFieldName"] = "湖南";
dr["维度"] = result[i].trafficType;
dr["去年基准日话务量"] = result[i].lastFir.Trim();
dr["去年预测日话务量"] = result[i].lastSec.Trim();
dr["增长幅度"] = result[i].add.Trim();
dr["今年基准日话务量"] = result[i].nowFir.Trim();
dr["今年预测日话务量"] = result[i].nowSec.Trim();
dr["目前电路数"] = result[i].count.Trim();
dr["预测2M电路数"] = result[i].fcastcount.Trim();
dr["需要新增的电路数"] = result[i].addcount.Trim();
dataTable.Rows.Add(dr);
}
else if (result[i].trafficType != "ALL" && result[i].city != "ALL" && result[i].nename == "ALL")//汇总到地市的数据
{
DataRow dr = dataTable.NewRow();
dr["keyFieldName"] = result[i].trafficType + "_" + result[i].city;
dr["parentFieldName"] = result[i].trafficType;
dr["维度"] = result[i].city;
dr["去年基准日话务量"] = result[i].lastFir.Trim();
dr["去年预测日话务量"] = result[i].lastSec.Trim();
dr["增长幅度"] = result[i].add.Trim();
dr["今年基准日话务量"] = result[i].nowFir.Trim();
dr["今年预测日话务量"] = result[i].nowSec.Trim();
dr["目前电路数"] = result[i].count.Trim();
dr["预测2M电路数"] = result[i].fcastcount.Trim();
dr["需要新增的电路数"] = result[i].addcount.Trim();
dataTable.Rows.Add(dr);
}
else if (result[i].trafficType != "ALL" && result[i].city != "ALL" && result[i].nename != "ALL" && result[i].middle == "ALL")//汇总到网元的数据
{
DataRow dr = dataTable.NewRow();
dr["keyFieldName"] = result[i].trafficType + "_" + result[i].city + "_" + result[i].nename;
dr["parentFieldName"] = result[i].trafficType + "_" + result[i].city;
dr["维度"] = result[i].nename;
dr["去年基准日话务量"] = result[i].lastFir.Trim();
dr["去年预测日话务量"] = result[i].lastSec.Trim();
dr["增长幅度"] = result[i].add.Trim();
dr["今年基准日话务量"] = result[i].nowFir.Trim();
dr["今年预测日话务量"] = result[i].nowSec.Trim();
dr["目前电路数"] = result[i].count.Trim();
dr["预测2M电路数"] = result[i].fcastcount.Trim();
dr["需要新增的电路数"] = result[i].addcount.Trim();
dataTable.Rows.Add(dr);
}
else if (result[i].trafficType != "ALL" && result[i].city != "ALL" && result[i].nename != "ALL" && result[i].middle != "ALL")//到中继的数据
{
DataRow dr = dataTable.NewRow();
dr["keyFieldName"] = result[i].trafficType + "_" + result[i].city + "_" + result[i].nename + "_" + result[i].middle;
dr["parentFieldName"] = result[i].trafficType + "_" + result[i].city + "_" + result[i].nename;
dr["维度"] = result[i].middle;
dr["去年基准日话务量"] = result[i].lastFir.Trim();
dr["去年预测日话务量"] = result[i].lastSec.Trim();
dr["增长幅度"] = result[i].add.Trim();
dr["今年基准日话务量"] = result[i].nowFir.Trim();
dr["今年预测日话务量"] = result[i].nowSec.Trim();
dr["目前电路数"] = result[i].count.Trim();
dr["预测2M电路数"] = result[i].fcastcount.Trim();
dr["需要新增的电路数"] = result[i].addcount.Trim();
dataTable.Rows.Add(dr);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + ex.StackTrace);
}
}
public TrafficResultTree(IApplication application)
{
InitializeComponent();
this.application = application;
SetTreeListColumn("Config\\Forecast\\TrafficForecastResultTree.xml", "/Head", treeListResult);
//Test
PublicFunction.SetDataTableColumn(treeListResult, dtResult);
treeListResult.ParentFieldName = "parentFieldName"; //设置树的ParentFieldName 属性
treeListResult.KeyFieldName = "keyFieldName"; //设置树的KeyFieldName 属性
//
}
public static void SetDataTableColumn(DevExpress.XtraTreeList.TreeList treeListResult, DataTable dtResult)
{
try
{
dtResult.Columns.Clear();
DataColumn dcid = new DataColumn("keyFieldName", Type.GetType("System.String"));
DataColumn dcparentId = new DataColumn("parentFieldName", Type.GetType("System.String"));
dtResult.Columns.Add(dcid);
dtResult.Columns.Add(dcparentId);
for (int i = 0; i < treeListResult.Columns.Count; i++)
{
DataColumn dc = new DataColumn(treeListResult.Columns[i].FieldName);
dtResult.Columns.Add(dc);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + ex.StackTrace);
}
}
private void InsertRelayData(string time, string type, string cityName, string equipeName, string burName, Inspur.Analysis.AnalysisService.Relay resultRelay)
{
try
{
DataRow drRelay = dtResult.NewRow();
drRelay["keyFieldName"] = time + "_" + type + "_" + cityName + "_" + equipeName + "_" + burName + "_" + resultRelay.RelayName + "_" + DateTime.Now.ToString();
drRelay["parentFieldName"] = time + "_" + type + "_" + cityName + "_" + equipeName + "_" + burName;
drRelay["维度"] = resultRelay.RelayName;
drRelay["定义电路数"] = resultRelay.Total.CIRCUITS;
drRelay["来话试呼次数"] = resultRelay.Total.in_att;
drRelay["去话试呼次数"] = resultRelay.Total.out_att;
drRelay["来话应答次数"] = resultRelay.Total.in_ans;
drRelay["去话应答次数"] = resultRelay.Total.out_ans;
drRelay["来话话务量"] = resultRelay.Total.in_traf;
drRelay["去话话务量"] = resultRelay.Total.out_traf;
drRelay["总话务量"] = resultRelay.Total.traf;
drRelay["来话市话话务量"] = resultRelay.Total.in_local_traf;
drRelay["去话市话话务量"] = resultRelay.Total.out_local_traf;
drRelay["来话长话话务量"] = resultRelay.Total.in_long_traf;
drRelay["去话长话话务量"] = resultRelay.Total.out_long_traf;
drRelay["市话话务量"] = resultRelay.Total.local_traf;
drRelay["长话话务量"] = resultRelay.Total.long_traf;
dtResult.Rows.Add(drRelay);
//DevExpress.XtraTreeList.Nodes.TreeListNode noderelay = null;
//for (int i = 0; i < nodebureauD.Nodes.Count; i++)
//{
// if (nodebureauD.Nodes[i]["维度"].ToString() == relay.RelayName)
// {
// noderelay = nodebureauD.Nodes[i];
// break;
// }
//}
//if (noderelay == null)
//{
// List<string> relayList = new List<string>();
// relayList.Add(relay.RelayName);
// noderelay = treeList.AppendNode(relayList.ToArray(), nodebureauD);
//}
//if (noderelay != null)
//{
// InsertTargetData(noderelay, relay.RelayName, relay.Total);
//}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + ex.StackTrace);
}
}
