Winform how to preserve the dynamically generated control position to file

CodePudding user response:

https://bbs.csdn.net/topics/396830133
Take attributes to also go, take the basic (coordinates, the content of what), set up a class, serialized to a file, can read

 
using System; 
using System.Collections.Generic; 
Using System. Drawing; 
Using System. IO; 
Using System. The Runtime. Serialization; 
Using System. The Runtime. Serialization. Json; 
Using System. Windows. Forms; 

The namespace Demo_1 
{
//System. "reference" to add the Runtime. Serialization 
Public partial class Form1: Form 
{
[DataContract] 
Public class Record 
{
[DataMember] 
Public string Obj_Type;//type 
[DataMember] 
Public Point Obj_Point;//position 
[DataMember] 
Public Size Obj_Size;//size 
[DataMember] 
Public string Obj_BackColor;//color 
[DataMember] 
Public string Obj_Content;//content 

Public Record (string t, Point p, the Size s, c string, the string e) 
{
Obj_Type=t; 
Obj_Point=p; 
Obj_Size=s; 
Obj_BackColor=c; 
Obj_Content=e; 
} 
} 
Public static List Obj_Record=new List (a); 

Public _click () 
{
InitializeComponent(); 

for (int i=0; I & lt; 3; I++) 
{
The Label Label=new Label () 
{
Location=new Point (10 + I * 130, 10), 
Size=new Size (100, 20), 
Text="CSDN - 12345", 
BackColor=Color. WhiteSmoke 
}; 
This. Controls. The Add (label); 
Obj_Record. Add (new Record (label. GetType (), ToString (), label, the Location, the label, the Size, ColorTranslator. ToHtml (label. BackColor), label, Text)); 

PictureBox picture=new PictureBox () 
{
Location=new Point (10 + I * 130, 40), 
Size=new Size (20, 20), 
Pimg. PNG Image=Bitmap. FromFile (" "), 
BackColor=Color WhiteSmoke, 
}; 
This. Controls. The Add (picture); 
Obj_Record. Add (new Record (picture. GetType (), ToString (), picture, Location, picture, Size, ColorTranslator. ToHtml (label. BackColor), BitmapToBase64String (picture. The Image as Bitmap))); 
} 

String Serialization_Obj=ObjectToJson (Obj_Record); 

The Button button_view=new Button () 
{
Location=new Point (10, living), 
Text="view json," 
}; 
Button_view. Click +=(s, e)=& gt; {MessageBox. Show (Serialization_Obj); };//the serialized string, can be saved as a file 
This. Controls. The Add (button_view); 
////////////////////////////////////////////////////////////////////////
The Button button_clear=new Button ()//remove components, an array 
{
Location=new Point (110, 90), 
Text="removal of components," 
}; 
Button_clear. Click +=(s, e)=& gt; 
{
Jmp: 
Foreach (var item in this. Controls) 
{
if (! (the item is the Button)) 
{
This. Controls. Remove item (as Control); 
Goto Jmp. 
} 
} 
Obj_Record. The Clear (); 
}; 
This. Controls. The Add (button_clear); 
////////////////////////////////////////////////////////////////////////
Button button_load=new Button ()//load component 
{
Location=new Point (210, 90), 
Text="load component", 
}; 
Button_load. Click +=(s, e)=& gt; 
{
Obj_Record=JsonToObject (Serialization_Obj);//load a string into object 
The foreach (var item in Obj_Record) 
{
If (item. Obj_Type. The Contains (" Label ")) 
{
The Label Label=new Label () 
{
Location=item Obj_Point, 
Size=item Obj_Size, 
Text=item Obj_Content, 
BackColor=ColorTranslator. FromHtml (item. Obj_BackColor), 
}; 
This. Controls. The Add (label); 
} 
If (item. Obj_Type. The Contains (" PictureBox ")) 
{
PictureBox picture=new PictureBox () 
{
Location=item Obj_Point, 
Size=item Obj_Size, 
Image=Base64StringToImage (item. Obj_Content), 
BackColor=ColorTranslator. FromHtml (item. Obj_BackColor), 
}; 
This. Controls. The Add (picture); 
} 
} 
}; 
This. Controls. The Add (button_load); 
} 

//bitmap base64 
Private string BitmapToBase64String Bitmap (BMP) 
{
Try 
{
MemoryStream ms=new MemoryStream (); 
BMP. Save (ms, System. Drawing. Imaging. ImageFormat. Png);//Png image 
Byte [] arr=new byte [Ms. Length]; 
Ms. Position=0; 
Ms. Read (arr, 0, (int) Ms. Length); 
Ms. Close (); 
Return the Convert. ToBase64String (arr); 
} 
Catch 
{
return null; 
} 
} 

//base64 bitmap 
Public static Bitmap Base64StringToImage (string inputStr) 
{
Try 
{
Byte [] arr=the Convert. FromBase64String (inputStr); 
MemoryStream ms=new MemoryStream (arr); 
Bitmap BMP=new Bitmap (ms); 
Ms. Close (); 
Return BMP. 
} 
Catch 
{
return null; 
} 
} 

//serialized as json 
Public static string ObjectToJson (T T) where T: class 
{
DataContractJsonSerializer formatter=new DataContractJsonSerializer (typeof (T)); 
Using (MemoryStream stream=new MemoryStream ()) 
{
The formatter. WriteObject (stream, t); 
. String result=System. Text. Encoding UTF8. Get string (stream. The ToArray ()); 
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