Question

我有一堆动态添加的控件，当用户单击添加用户按钮时会逐行添加。我希望在页面加载时有标签，并且我希望每次单击添加用户按钮时（在每行文本框下）都会向下移动相同的标签。现在它正在加载，当用户第一次点击按钮时它会向下移动但在此之后它就会停留。这是我的代码：

全局变量：

Label Savelbl = new Label();    
int LabelX = 15;
int LabelY = 110;       
int spacelbl = 15;

页面加载：

Savelbl.Location = new Point(LabelX, LabelY);
Savelbl.Name = "Savelbl";
Savelbl.Text = "Please click 'save' to save your changes";
CaeUsersPanel.Controls.Add(Savelbl);

添加用户按钮：

    private void CAEAddUserbtn_Click(object sender, EventArgs e)
    {

        var i = UsernameTextBoxes.Count + 1; // this is a list of the added textboxes
        ADDUserInfo(i); //method which adds the dynamically created textboxes

      Savelbl.Location = new Point(LabelX, LabelY + spacelbl);

    }

删除用户按钮（单击此标签时标签应向上移动）：

private void Remove_Click(object sender, EventArgs e)
{
DialogResult result = MessageBox.Show("Are you sure you want delete this user?  \n Deleting users may break workflows", "Delete", MessageBoxButtons.YesNo);
            if (result == DialogResult.Yes)
            {

                int idx = RemoveButtons.IndexOf((Button)sender);

                // Remove button
                RemoveButtons[idx].Dispose();
                RemoveButtons.RemoveAt(idx);

                // Remove textbox
                UsernameTextBoxes[idx + 1].Dispose();
                UsernameTextBoxes.RemoveAt(idx + 1);

                //Shift controls up
                for (int i = idx; i < RemoveButtons.Count; i++)
                {
                    UsernameTextBoxes[i + 1].Top -= SpaceDelta;
                }

                space -= SpaceDelta;

                Savelbl.Location = new Point(LabelX, LabelY - spacelbl);

            }
        }

Answer 1

您永远不会更新LabelX和LabelY。

LabelX = Savelbl.Location.X
LabelY = Savelbl.Location.Y
Savelbl.Location = new Point(LabelX, LabelY - spacelbl);

你也可以摆脱这些变量......

C＃winforms dynimcally创建了标签位置

1 个答案: