在流布局面板中的按钮下添加标签
本文关键字:按钮 添加 加标签 流布局 | 更新日期: 2023-09-27 17:55:54
当我将文件拖放到表单上时,我需要在flowLayoutPanel中动态创建带有标签的按钮。但是我如何将标签位置设置为按钮下方,因为 FLP 会自行排列控件。?
我尝试过:
void Form1_DragDrop(object sender, DragEventArgs e)
{
string[] fileList = e.Data.GetData(DataFormats.FileDrop) as string[];
foreach (string s in fileList)
{
Button button = new Button();
button.Click += new EventHandler(this.button_Click);
fl_panel.Controls.Add(button);
Icon icon = System.Drawing.Icon.ExtractAssociatedIcon(filename);
Bitmap bmp = icon.ToBitmap();
button.BackgroundImage = bmp;
button.Width = 60;
button.Height = 75;
button.FlatStyle = FlatStyle.Flat;
button.BackgroundImageLayout = ImageLayout.Stretch;
int space = 5;
int Yy = button.Location.Y;
int Xx = button.Location.X;
Label label = new Label();
label.Location = new Point(Yy + space, Xx);
//label.Margin.Top = button.Margin.Bottom;
fl_panel.Controls.Add(label);
}
}
我知道的最好的主意是实现一个自定义控件,其中包含正确排列的按钮和标签。 然后将自定义控件添加到 FlowLayoutPanel。
public class CustomControl:Control
{
private Button _button;
private Label _label;
public CustomControl(Button button, Label label)
{
_button = button;
_label = label;
Height = button.Height + label.Height;
Width = Math.Max(button.Width, label.Width);
Controls.Add(_button);
_button.Location = new Point(0,0);
Controls.Add(_label);
_label.Location = new Point(0, button.Height);
}
}
然后,您可以像这样添加它:
for (int i = 0; i < 10; i++)
{
CustomControl c = new CustomControl(new Button {Text = "Button!"}, new Label {Text = "Label!"});
fl_panel.Controls.Add(c);
}
编辑:如果要收听按钮事件,请尝试以下操作:
for (int i = 0; i < 10; i++)
{
var button = new Button {Text = "Button " + i};
CustomControl c = new CustomControl(button, new Label {Text = "Label!"});
button.Click += buttonClicked;
fl_panel.Controls.Add(c);
}
...
private void buttonClicked(object sender, EventArgs e)
{
MessageBox.Show(((Button) sender).Text);
}