c# - flowlayout 控件不断在 winforms 中以错误的方向添加控件

Question

我在 winforms 中有一个 flowlayout 控件，我已将其流向设置为 TopDown 但它一直从左到右添加控件，autoscroll 也设置为 true。

flowLayoutPanel1.Controls.Clear();    
Label labelInput = new Label();
ListBox listBoxNewInput = new ListBox();

//Initialize label's property
labelInput.Text = " #" + Convert.ToInt32(sequence);
labelInput.AutoSize = true;

//Initialize textBoxes Property
listBoxNewInput.HorizontalScrollbar = false;

listBoxNewInput.Items.Add(efforts);
//Add the newly created text box to the list of input text boxes
inputTextBoxesList.Add(listBoxNewInput);

//Add the labels and text box to the form
flowLayoutPanel1.FlowDirection = FlowDirection.TopDown;
flowLayoutPanel1.Controls.Add(labelInput);
flowLayoutPanel1.FlowDirection = FlowDirection.TopDown;
flowLayoutPanel1.Controls.Add(listBoxNewInput);

Answer 1

将flowLayoutPanel1的WrapContents属性设置为false，否则将不允许在右侧移动那些控件合身。为了能够滚动剪辑的内容，您可以将 AutoScroll 属性设置为 true

代码如下:

flowLayoutPanel1.FlowDirection = FlowDirection.TopDown;
flowLayoutPanel1.WrapContents = false;
flowLayoutPanel1.AutoScroll = true;
flowLayoutPanel1.Controls.Add(labelInput);
flowLayoutPanel1.Controls.Add(listBoxNewInput);