在C#中动态添加控件到循环下 [英] dynamically adding controls under loop in C#

问题描述

我正在开发Windows应用程序，我想在其中循环动态创建一些控件. 我正在尝试的代码是

I am developing a windows application where I want to create some controls dynamically inside a loop. The code I am trying is

private Label newLabel = new Label();
private int txtBoxStartPosition = 100;
private int txtBoxStartPositionV = 25;

 for (int i = 0; i < 7; i++)
{

    newLabel.Location = new System.Drawing.Point(txtBoxStartPosition, txtBoxStartPositionV);
    newLabel.Size = new System.Drawing.Size(70, 40);
    newLabel.Text = i.ToString();

    panel1.Controls.Add(newLabel);
    txtBoxStartPositionV += 30;


}

此代码仅生成一个带有文本7的标签，但是我想用它们各自的文本创建8个标签，我该怎么做?

This code is generating only one Label with text 7 but I want to create 8 Lables with their respective texts, how can I do this?

推荐答案

在您的循环中，您实质上是在更新同一Label的属性.如果要在每个步骤上创建一个新对象，请在循环内移动对象的创建:

In your loop you are essentially updating properties of the very same Label. If you want create a new one on each step, move creation of the object inside the loop:

private Label newLabel;

for (int i = 0; i < 7; i++)
{
    newLabel = new Label();
    ...

如果想要 8 标签，您的for应该迭代8次，而不是7次，就像现在这样:

By the way if you want 8 labels - your for should iterate 8 times, not 7, as it does now:

for (int i = 0; i < 8; i++)

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