查看: 4181|回复: 0

[ASP.NET教程] TreeList 用含有树形结构的数据源绑定显示

发表于 2018-3-7 08:00:01

目的很明确,直接贴代码(反射一个对象,将属性存入DataTable中绑定显示):

public static DataTable CreateDataTabele( object obj)

{

DataTable dt = new DataTable();

DataColumn did = new DataColumn("ID", Type.GetType("System.Int32"));//ID

DataColumn dParentID = new DataColumn("ParentID", Type.GetType("System.Int32"));//父节点ID

DataColumn dNodeName = new DataColumn("Name", Type.GetType("System.String"));//节点名

DataColumn dNodeCaption = new DataColumn("Caption", Type.GetType("System.String"));//节点中文名

DataColumn dCanAdded = new DataColumn("CanAdded", Type.GetType("System.Boolean"));//是否包含子节点

DataColumn dNodeProperty = new DataColumn("NodeProperty", Type.GetType("System.String"));//属性

DataColumn dType = new DataColumn("NodeType", Type.GetType("System.String"));

DataColumn dChildName = new DataColumn("NodeChildName", Type.GetType("System.String"));

DataColumn dValue = new DataColumn("NodeValue", Type.GetType("System.Object"));


dt.Columns.AddRange(new DataColumn[] { dParentID, did, dNodeName, dNodeCaption, dCanAdded, dNodeProperty , dType, dChildName,dValue });


int id = 1;

int pid = 0;

DataRow dw = dt.NewRow();

dw["ID"] = id;

dw["ParentID"] = pid++;

dw["Name"] = "FormConfig";

dw["Caption"] = "XXX节点";

dw["CanAdded"] = false;

dt.Rows.Add(dw);


ReflectObject(obj, ref dt,ref id, pid, 0);


return dt;

}


///递归反射节点

private static void ReflectObject(object obj, ref DataTable dt, ref int id, int pid, int pID)

{

if (obj == null) return;

Type type = obj.GetType();

foreach (PropertyInfo pi in type.GetProperties())

{

DataRow dw = dt.NewRow();

dw["ID"] = ++id;

dw["ParentID"] = pid;

dw["Name"] = pi.Name.ToString();

if ((pi.GetCustomAttributes(true)).Count() > 0) dw["Caption"] = ((DescriptionAttribute)(pi.GetCustomAttributes(true))?[0]).Description;

dw["CanAdded"] = false;

if (pi.PropertyType.Name.ToLower().Equals("list`1"))

{

dw["CanAdded"] = true;

}

dt.Rows.Add(dw);

pID = id ;


if (!(pi.PropertyType).IsPrimitive)

{

if (pi.PropertyType.Name != "String")

{

var proValue = pi.GetValue(obj, null);

if (proValue == null)

{

////个人使用的单例创建对象 于读者无关

if(ToolHelper._dicCreate.ContainsKey(pi.PropertyType.Name))

{

proValue = ToolHelper._dicCreate[pi.PropertyType.Name].Invoke();

}

pi.SetValue(obj, proValue, null);

}

ReflectObject(proValue, ref dt, ref id, pID, 0);

}

}

}

}




回复

使用道具 举报