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，但它不断从左到右添加控件，自动滚动也设置为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，如果右侧的控件不适合，则不允许移动它们。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);