asp.net 追加 xml文件时 报错
我重写时 没问题...
CheckBox checkbox;
XmlDocument newdom = new XmlDocument();
XmlElement newroot = newdom.CreateElement( "roles ");
foreach(DataGridItem dgc in this.DataGrid1.Items)
{
checkbox = (CheckBox)this.DataGrid1.Items[dgc.ItemIndex].FindControl( "CheckBox1 ");
if(((CheckBox)dgc.FindControl( "CheckBox1 ")).Checked==true)
{
XmlElement role = newdom.CreateElement( "role ");
XmlElement child = newdom.CreateElement( "param ");
child.SetAttribute( "name ", "rolename ");
child.SetAttribute( "value ",dgc.Cells[1].Text);
role.AppendChild(child);
newroot.AppendChild(role);
}
}
if(File.Exists(Server.MapPath( "xml\\roleuser.xml ")))
{
XmlDocument docxml = new XmlDocument();
File.AppendText(Server.MapPath( "xml\\roleuser.xml "));
//File.OpenWrite(Server.MapPath( "xml\\roleuser.xml "));
docxml.AppendChild(newroot);
docxml.Save(Server.MapPath( "xml\\roleuser.xml "));
}
else
{
XmlDeclaration xde = newdom.CreateXmlDeclaration( "1.0 ", "UTF-8 ", " ");
newdom.AppendChild(xde);
newdom.AppendChild(newroot);
newdom.Save(Server.MapPath( "xml\\roleuser.xml "));
}
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当文件 不存在 创建的时候没有错 但是在追加的时候 他报错
“要插入的节点出自不同的文档上下文”
是因为它不知道 要插哪里么？
[解决办法]
XmlElement newroot = newdom.CreateElement( "roles ");
应该是 dom.CreateElement( "roles ");
[解决办法]
XmlElement child = xmldom.CreateElement( "param ");
child.SetAttribute( "name ", "rolename ");
child.SetAttribute( "value ",dgc.Cells[1].Text);
XmlDocumentFragment docFrag = doc.CreateDocumentFragment();
docFrag.InnerXml=child.OutXml;
xmlroot .AppendChild(docFrag);
应该可以
[解决办法]
upup
[解决办法]
我知道﹗現在是能加載得了你已經建的XML先呀﹗
這是你之前建的XML
<?xml version= "1.0 " encoding= "UTF-8 "?>
<roles>
<param name= "rolename " value= "123 " />
<param name= "rolename " value= "789 " />
</roles>
這時你加加載不了提示出錯
==================================================
newdom.LoadXml(Server.MapPath(@ "xml\\roleuser.xml "))
根级别上的数据无效。 行 1，位置 1。
====================================================
是因為這里﹕ <?xml version= "1.0 " encoding= "UTF-8 "?>
應改為﹕ <?xml version= "1.0 " encoding= "UTF-16 "?>
