C#序列化/反序列化Listview
我试图序列化ListView中的数据，然后对其进行反序列化，并用保存的数据填充ListViewC#序列化/反序列化Listview,c#,winforms,listview,serialization,listviewitem,C#,Winforms,Listview,Serialization,Listviewitem,我试图序列化ListView中的数据，然后对其进行反序列化，并用保存的数据填充ListView public List<ListViewItem> SaveListView(ListView LV) { System.Collections.Generic.List<ListViewItem> lSavedLV = new List<ListViewItem>(); for (int i = 0; (i <=
public List<ListViewItem> SaveListView(ListView LV)
{
System.Collections.Generic.List<ListViewItem> lSavedLV = new List<ListViewItem>();
for (int i = 0; (i <= animalList.Count - 1); i++)
{
lSavedLV.Add(LV.Items[i]);
}
return lSavedLV;
}
公共列表保存列表视图（ListView LV）
{
System.Collections.Generic.List lSavedLV=新列表（）；
对于（int i=0；（i这里不想光顾，但ListView是表示逻辑。ListViewItem是表示逻辑。您不应该序列化它们。您应该做的是序列化数据，而不是它的可视化表示
为什么不创建一个包含要可视化的数据的类呢
public class DataIWannaVisualize
{
// ...
}
通过为其指定适当的属性使其可序列化：
[Serializable]
public class DataIWannaVisualize
并具有这些数据对象的列表
IList<DataIWannaVisualize> dataList = new List<DataIWannaVisualize>();
现在是ListView。在表单的Load事件上有一个处理程序来填充它
private void Form1_Load(object sender, EventArgs e)
{
foreach (DataIWannaVisualize dataObject in dataList)
{
ListViewItem item = new ListViewItem();
// TODO: Fill the item with the desired data.
listView1.Items.Add(item);
}
}
最重要的是，您不必担心序列化UI逻辑类。Callash已经提供了足够的答案，但如果您想看到完整的示例
它不是使用ListView，而是使用DataGridView…但它将向您展示如何持久化数据以及如何加载数据
using System;
using System.Collections.Generic;
using System.Windows.Forms;
namespace DataExample
{
public class Form1 : Form
{
private string _Filename = "MyAnimals.xml";
public List<Animal> myAnimals = new List<Animal>();
public Form1()
{
InitializeComponent();
}
public void RegisterDog(String name)
{
myAnimals.Add(new Dog { Name = name });
}
public void RegisterCat(String name)
{
myAnimals.Add(new Cat { Name = name });
}
private DataGridView dataGridView1;
private Button button1;
private Button button2;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.dataGridView1 = new System.Windows.Forms.DataGridView();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
this.SuspendLayout();
//
// dataGridView1
//
this.dataGridView1.AllowUserToAddRows = false;
this.dataGridView1.AllowUserToDeleteRows = false;
this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Location = new System.Drawing.Point(12, 12);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.Size = new System.Drawing.Size(260, 199);
this.dataGridView1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(12, 229);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(85, 21);
this.button1.TabIndex = 1;
this.button1.Text = "persist to file";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(151, 229);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(121, 21);
this.button2.TabIndex = 2;
this.button2.Text = "make dummy objects";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.dataGridView1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private void button2_Click(object sender, EventArgs e)
{
RegisterDog("SomeDog");
RegisterCat("SomeCat");
dataGridView1.DataSource = null;
dataGridView1.DataSource = myAnimals;
}
private void button1_Click(object sender, EventArgs e)
{
try
{
using (System.Xml.XmlWriter xmlWriter = System.Xml.XmlWriter.Create(_Filename))
{
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(List<Animal>), new Type[] { typeof(Dog), typeof(Cat) });
serializer.Serialize(xmlWriter, myAnimals);
}
}
catch { }
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
using (System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(_Filename))
{
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(List<Animal>), new Type[] { typeof(Dog), typeof(Cat) });
myAnimals = (List<Animal>)serializer.Deserialize(xmlReader);
dataGridView1.DataSource = myAnimals;
}
}
catch { }
}
}
[Serializable]
public abstract class Animal
{
public String Name { get; set; }
public abstract String Species { get; }
}
[Serializable]
public class Dog : Animal
{
public override string Species
{
get { return "Dog"; }
}
}
[Serializable]
public class Cat : Animal
{
public override string Species
{
get { return "Cat"; }
}
}
}
使用系统；
使用System.Collections.Generic；
使用System.Windows.Forms；
名称空间数据示例
{
公开课表格1：表格
{
私有字符串_Filename=“myanives.xml”；
公共列表myAnimals=新列表（）；
公共表格1（）
{
初始化组件（）；
}
公共无效注册表日志（字符串名称）
{
添加（新狗{Name=Name}）；
}
公共无效注册表地址（字符串名称）
{
添加（新的Cat{Name=Name}）；
}
私有DataGridView dataGridView1；
私人按钮1；
私人按钮2；
///
///必需的设计器变量。
///
private System.ComponentModel.IContainer components=null；
///
///清理所有正在使用的资源。
///
///如果应释放托管资源，则为true；否则为false。
受保护的覆盖无效处置（布尔处置）
{
if（处理和（组件！=null））
{
组件。Dispose（）；
}
基地。处置（处置）；
}
#区域Windows窗体设计器生成的代码
///
///设计器支持所需的方法-不修改
///此方法的内容与代码编辑器一起使用。
///
私有void InitializeComponent（）
{
this.dataGridView1=new System.Windows.Forms.DataGridView（）；
this.button1=new System.Windows.Forms.Button（）；
this.button2=new System.Windows.Forms.Button（）；
（（System.ComponentModel.ISupportInitialize）（this.dataGridView1））.BeginInit（）；
这个.SuspendLayout（）；
//
//dataGridView1
//
this.dataGridView1.allowUserToAddress=false；
this.dataGridView1.AllowUserToDeleteRows=false；
this.dataGridView1.columnHeadershightSizeMode=System.Windows.Forms.datagridviewColumnHeadershightSizeMode.AutoSize；
this.dataGridView1.Location=新系统.Drawing.Point（12,12）；
this.dataGridView1.Name=“dataGridView1”；
this.dataGridView1.Size=新系统.Drawing.Size（260199）；
this.dataGridView1.TabIndex=0；
//
//按钮1
//
this.button1.Location=新系统图纸点（12229）；
this.button1.Name=“button1”；
this.button1.Size=新系统图纸尺寸（85,21）；
this.button1.TabIndex=1；
this.button1.Text=“保存到文件”；
this.button1.UseVisualStyleBackColor=true；
this.button1.Click+=新系统.EventHandler（this.button1\u Click）；
//
//按钮2
//
this.button2.Location=新系统图纸点（151229）；
this.button2.Name=“button2”；
this.button2.Size=新系统图纸尺寸（121,21）；
this.button2.TabIndex=2；
this.button2.Text=“生成虚拟对象”；
this.button2.UseVisualStyleBackColor=true；
this.button2.Click+=新系统.EventHandler（this.button2\u Click）；
//
//表格1
//
此.AutoScaleDimensions=新系统.Drawing.SizeF（6F，13F）；
this.AutoScaleMode=System.Windows.Forms.AutoScaleMode.Font；
this.ClientSize=新系统.Drawing.Size（284262）；
this.Controls.Add（this.button2）；
this.Controls.Add（this.button1）；
this.Controls.Add（this.dataGridView1）；
this.Name=“Form1”；
this.Text=“Form1”；
this.Load+=new System.EventHandler（this.Form1\u Load）；
（（System.ComponentModel.ISupportInitialize）（this.dataGridView1））.EndInit（）；
此选项为.resume布局（false）；
}
#端区
私有无效按钮2\u单击（对象发送者，事件参数e）
{
注册狗（“SomeDog”）；
注册猫（“SomeCat”）；
dataGridView1.DataSource=null；
dataGridView1.DataSource=myAnimals；
}
私有无效按钮1\u单击（对象发送者，事件参数e）
{
尝试
{
使用（System.Xml.XmlWriter XmlWriter=System.Xml.XmlWriter.Create（_Filename））
{
System.Xml.Serialization.XmlSerializer serializer=new System.Xml.Serialization.XmlSerializer（typeof（List），new Type[]{typeof（Dog），typeof（Cat）}）；
serializer.Serialize（xmlWriter，myAnimals）；
}
}
捕获{}
}
私有void Form1\u加载（对象发送方、事件参数e）
{
尝试
{
使用（System.Xml.XmlReader=System.Xml.XmlReader.Create
private void Form1_Load(object sender, EventArgs e)
{
foreach (DataIWannaVisualize dataObject in dataList)
{
ListViewItem item = new ListViewItem();
// TODO: Fill the item with the desired data.
listView1.Items.Add(item);
}
}
using System;
using System.Collections.Generic;
using System.Windows.Forms;
namespace DataExample
{
public class Form1 : Form
{
private string _Filename = "MyAnimals.xml";
public List<Animal> myAnimals = new List<Animal>();
public Form1()
{
InitializeComponent();
}
public void RegisterDog(String name)
{
myAnimals.Add(new Dog { Name = name });
}
public void RegisterCat(String name)
{
myAnimals.Add(new Cat { Name = name });
}
private DataGridView dataGridView1;
private Button button1;
private Button button2;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.dataGridView1 = new System.Windows.Forms.DataGridView();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
this.SuspendLayout();
//
// dataGridView1
//
this.dataGridView1.AllowUserToAddRows = false;
this.dataGridView1.AllowUserToDeleteRows = false;
this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Location = new System.Drawing.Point(12, 12);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.Size = new System.Drawing.Size(260, 199);
this.dataGridView1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(12, 229);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(85, 21);
this.button1.TabIndex = 1;
this.button1.Text = "persist to file";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(151, 229);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(121, 21);
this.button2.TabIndex = 2;
this.button2.Text = "make dummy objects";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.dataGridView1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private void button2_Click(object sender, EventArgs e)
{
RegisterDog("SomeDog");
RegisterCat("SomeCat");
dataGridView1.DataSource = null;
dataGridView1.DataSource = myAnimals;
}
private void button1_Click(object sender, EventArgs e)
{
try
{
using (System.Xml.XmlWriter xmlWriter = System.Xml.XmlWriter.Create(_Filename))
{
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(List<Animal>), new Type[] { typeof(Dog), typeof(Cat) });
serializer.Serialize(xmlWriter, myAnimals);
}
}
catch { }
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
using (System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(_Filename))
{
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(List<Animal>), new Type[] { typeof(Dog), typeof(Cat) });
myAnimals = (List<Animal>)serializer.Deserialize(xmlReader);
dataGridView1.DataSource = myAnimals;
}
}
catch { }
}
}
[Serializable]
public abstract class Animal
{
public String Name { get; set; }
public abstract String Species { get; }
}
[Serializable]
public class Dog : Animal
{
public override string Species
{
get { return "Dog"; }
}
}
[Serializable]
public class Cat : Animal
{
public override string Species
{
get { return "Cat"; }
}
}
}