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我有一個按鈕和麪板的這種形式。當我按下按鈕,我想添加一行到dataGridView1
如何從用戶控件添加行到dataGridView
用戶控件代碼:
public partial class UserControl1 : UserControl
{
private static UserControl1 _instance;
public static UserControl1 Instance
{
get
{
if (_instance == null)
_instance = new UserControl1();
return _instance;
}
}
public UserControl1()
{
InitializeComponent();
}
public void setRow()
{
String[] row = { "TEST", "TEST", "TEST", "TEST" };
dataGridView1.Rows.Add(row);
}
}
Form 1代碼:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
panel1.Controls.Add(new UserControl1());
UserControl1.Instance.Dock = DockStyle.Fill;
UserControl1.Instance.BringToFront();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
UserControl1 user = new UserControl1();
user.setRow();
}
private void button2_Click(object sender, EventArgs e)
{
}
}
爲什麼在按鈕點擊事件中創建UserControl1的新實例?調用''UserControl1.Instance.setRow();''而不是 –
來訪問UserControl1中的方法setRow() –
否...要在Form1中顯示UserControl,您要在構造函數中創建實例...使用'panel1.Controls .Add(new UserControl1());'' –