使用列表添加listBox数据<;对象>;
本文关键字:lt 对象 gt 数据 列表 添加 listBox | 更新日期: 2023-09-27 18:27:31
我想用带有属性的对象列表填充我的ListBox
,我想知道如何定义listbox
以显示该对象中的某个属性,该属性是一些文本,另一个是在单击listBox项目时要调用的方法的名称(SelectIndexChanged)
希望这能有所帮助。
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
//Create a listbox, with given height/width and top/left
var lstBox = new ListBox
{
Width = 300,
Height = 300,
Top = 10,
Left = 10
};
//Add the listbox to your form
this.Controls.Add(lstBox);
//Create a list of your customclass
var listCustomClass = new List<CustomClass>();
//Populate the list with values
for (int i = 0; i < 50; i++)
{
//create an instanze of your customclass
var customClass = new CustomClass();
//set properties of your class
customClass.Name = "Name " + i;
customClass.Description = "Description " + i;
if (i % 2 == 0)
customClass.MethodName = "CallMeBaby";
else
customClass.MethodName = "CallMeBabyWithParameter";
customClass.RandomProperty1 = "RandomProperty1 " + i;
//add the newly created customclass into your list
listCustomClass.Add(customClass);
}
//set the listbox to display or value what you need
lstBox.DisplayMember = "Description"; //Name of a property inside the class CustomClass
lstBox.ValueMember = "Name"; //Name of a property inside the class CustomClass
//set the datasource
lstBox.DataSource = listCustomClass;
//register the selectedindexchanged event
lstBox.SelectedIndexChanged += lstBox_SelectedIndexChanged;
}
private void lstBox_SelectedIndexChanged(object sender, EventArgs e)
{
//get the listbox from the sender
var lstBox = (sender as ListBox);
if (lstBox != null)
{
//safe cast the selecteditem to your customclass to get full access to any public property with the class definition
var customClass = lstBox.SelectedItem as CustomClass;
if (customClass != null)
{
//do what ever you want with the object and its properties
var name = customClass.Name;
var desription = customClass.Description;
var methodName = customClass.MethodName;
var randomProperty1 = customClass.RandomProperty1;
//call a certain method based on a string within the object
if (methodName == "CallMeBaby")
CallMeBaby();
else if (methodName == "CallMeBabyWithParameter")
CallMeBaby(name);
}
}
}
//declare the methods that are being called
private void CallMeBaby(string value)
{
//Access the parameter and do something
if (value == "HelloWorld!")
{
//Do something...
}
}
//parameterless method to show the possibilities...
private void CallMeBaby()
{
//Do something...
}
//define a public class
public class CustomClass
{
//random properties, can be extended to have what ever your need
public string Name { get; set; }
public string Description { get; set; }
public string MethodName { get; set; }
public string RandomProperty1 { get; set; }
}
}