public partial class FormTest :NewFormTest.NewForm { private Button button2 = new Button(); public FormTest() { InitializeComponent(); button1.Text = "新增的"; button1.Location = new Point(30, 30); this.listView1.Controls.Add(button2); } }
Button ItemButton = new Button(); ItemButton.Text = "test"; ItemButton.Location = new Point(100,100);添加的时候 抛出异常 Object reference not set to an instance of an object.this.listView1.Container.Add(ItemButton);这是为什么啊?
public partial class FormTest :NewFormTest.NewForm
{
private Button button2 = new Button();
public FormTest()
{
InitializeComponent();
button1.Text = "新增的";
button1.Location = new Point(30, 30);
this.listView1.Controls.Add(button2);
}
}
ItemButton.Text = "test";
ItemButton.Location = new Point(100,100);添加的时候 抛出异常 Object reference not set to an instance of an object.this.listView1.Container.Add(ItemButton);这是为什么啊?
是Controls 不是 Container
winform ListView 中添加 button?