未处理的“System.OutOfMemoryException”类型的异常出现在system.windows.forms.dll中
private   void   xqck_Load(object   sender,   System.EventArgs   e)
{
DataGridTableStyle   ts   =   new   DataGridTableStyle();    
ts.AlternatingBackColor   =   Color.LightGray;
ts.MappingName   =   this.ds.Tables[0].TableName;
this.dataGrid1.TableStyles.Add(ts);

sendStrSQL   =   "SELECT   ID   AS   编号,   Name   FROM   tZD   where   Parent   =   0 ";
this.ds   =   this.link.SelectDataBase(sendStrSQL,sendTableName);
this.dataGrid1.DataSource   =   ds;

treeView1.BeginUpdate();
for   (int   i=0;i <ds.Tables[0].Rows.Count;i {
TreeNode   node=new   TreeNode(ds.Tables   [0].Rows   [i][1].ToString   ().Trim());
treeView1.Nodes.Add(node);
getSubNode(node);

}
treeView1.EndUpdate();
}


private   void   getSubNode(TreeNode   PathName)
{
treeView1.BeginUpdate();
PathName.Nodes.Clear();
string   strFullPath   =   PathName.FullPath;
string   id   =   PathName.Tag.ToString();
sendStrSQL   =   "SELECT   ID   AS   编号,   Name   FROM   tZD   where   Parent   =   "   +   id;
this.ds   =   this.link.SelectDataBase(sendStrSQL,sendTableName);
this.dataGrid1.DataSource   =   ds;

for   (int   i=0;i <ds.Tables[0].Rows.Count;i++)
{
TreeNode   node   =   new   TreeNode(ds1.Tables   [0].Rows   [i][1].ToString().Trim());
node.Tag   =   ds.Tables   [0].Rows   [i][0].ToString();
PathName.Nodes.Add( "node ");

}
treeView1.EndUpdate();
}

以上的代码是生成一个目录树,但运行后出现如提的错误提示,请问这是什么错误?如何解决,谢谢

------解决方案--------------------
内存溢出，估计是哪里出现了死循环之类的，你试试注视getSubNode方法中treeView1.BeginUpdate();和treeView1.EndUpdate();
------解决方案--------------------
可能是pathname没有实例化。跟踪一下看它有没有值