kenlistian

//form窗体类
  this.DoubleBuffered = true;  //减少屏幕闪动

[DllImport("user32.dll")]
static extern bool LockWindowUpdate(IntPtr hWndLock);
 
//该api暂停某个控件的展现
//在控件绘制之前暂停展示，在绘制完毕之后再显示出来。


//例子：当缩放的时候解决闪烁问题：
// 解决后的现象是，整个form1只出现一次闪烁，没有了疯狂的刷新了。
void form1_ResizeBegin(object sender, EventArgs e)
{
        LockWindowUpdate(this.Handle);
} 
  
void form1_ResizeEnd(object sender, EventArgs e)
{
            LockWindowUpdate(IntPtr.Zero);
}

protected override CreateParams CreateParams 

{ 

get 

{ 

CreateParams cp = base.CreateParams; 

cp.ExStyle |= 0x02000000; 

return cp; 

} 

} 

 

//去焦点
btnSet.TabStop = false;

//设置按钮透明,进入后半透明
SetBtnStyle(btnSet);       

 private void SetBtnStyle(Button btn)
{
      btn.FlatStyle = FlatStyle.Flat;   //样式  
       btn.ForeColor = Color.Transparent;//前景  
       btn.BackColor = Color.Transparent;//去背景  
       btn.FlatAppearance.BorderSize = 0;//去边线 
       btn.FlatAppearance.MouseOverBackColor = Color.FromArgb(50, 40, 60, 82);
      btn.FlatAppearance.MouseDownBackColor = Color.FromArgb(50, 40, 60, 82);
}

pictureEdit1.Properties.SizeMode = DevExpress.XtraEditors.Controls.PictureSizeMode.Stretch;

internal static string LoadBackImage(XtraForm sender, string sfile,string sDefaultFile, bool bDirectLoad = false)
        {
            if (!bDirectLoad)
            {
                OpenFileDialog fd = new System.Windows.Forms.OpenFileDialog();
                fd.Filter = "jpg文件(*.jpg)|*.jpg|png文件(*.png)|*.png";
                if (fd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                    sfile = fd.FileName;
            }

            if (string.IsNullOrEmpty(sfile))
            {//获得缺省的图片文件
                sfile = sDefaultFile;                
            }

            if (!string.IsNullOrEmpty(sfile))
            {
                Image im = Image.FromFile(sfile);
                sender.BackgroundImage = im;
                sender.BackgroundImageLayout = ImageLayout.Stretch;
            }
            else
            {
                sender.BackgroundImage = null;

            }
            return sfile;
        }

public static XElement GenerateXmlFile(string appId)

 XElement myXDoc = new XElement(
                   new XElement("Smart2000",
                           new XElement("SuperPin", superPin),
                           new XElement("Modules")
                           );

}

public static XElement GenerateXmlFile(string appId)

 XElement myXDoc = new XElement(
                   new XElement("Smart2000",
                           new XElement("SuperPin", superPin),
                           new XElement("Modules",
                                   new XElement("Modules",
                                     new XAttribute("ID", "0"),
                                     new XAttribute("enable", "true"),
                                     new XAttribute("name", "Module" + 0),
                                     new XAttribute("Data", "")
                                    　　 )

　　　　　　　　　　　　)
              );

}

       //先加载XElement根节点
        XElment myXDoc = XElment.Load("@xxx.xml");

        public static XElement AddNode(XElement myXDoc, int num, string name, string data)
        {
            XElement xele = myXDoc.Element("Modules");　　//在xml文件里取出该节点
              XElement x = xele.Element("Module");　　       //在该节点下取到第一行初始化的数据

             if (Convert.ToString(x.Attribute("id").Value) == num)
            {
                xele.RemoveAll();//删除该节点的全部内容
             }


            xele.Add(new XElement("Module",
                  new XAttribute("id", num),
                                 new XAttribute("enable", "true"),
                                 new XAttribute("name", name),
                                 new XAttribute("Data", data)));
            return myXDoc;
        }

private static void ModifyXmlElement(string xmlpath, string strElement)  
{  
    XElement xe = XElement.Load(xmlpath);  

    IEnumerable<XElement> element = from e in xe.Elements("Book")  
                                   where e.Attribute("BookID").Value == strElement  
                                    select e;  
    ///修改元素
    if (element.Count() > 0)  
    {  
        XElement firstelement = element.First();  
        ///设置新的属性
         firstelement.SetAttributeValue("BookID", "new004");  
       

       ///替换成新的节点
         firstelement.ReplaceNodes(  
             new XElement("BookNo", "new0004"),  
             new XElement("BookName", "Book new0004"),  
             new XElement("BookPrice", "45"),  
             new XElement("BookRemark", "This is a book new0004")  
        );  

       //上面一段,可以改为先删除,再直接添加该节点更方便
       //对上面进行先屏蔽

        firstelement.RemoveAll();

    } 

    firstelement.Add(new XElement("BookNo","new004"),
                              new XElement("BookName", "book new0004"),
                              new XElement("BookPrice", "45"),
                             new XElement("BookRemark", "this is a book new004")
               );

  
    xe.Save(xmlpath);  

}