在运行时创建标签 [英] Create labels at runtime

问题描述

有了这个代码，我可以在运行时创建标签：

With this code I can create labels at runtime:

ArrayList CustomLabel = new ArrayList();

foreach (string ValutaCustomScelta in Properties.Settings.Default.ValuteCustom)
{
     CustomLabel.Add(new Label());
     (CustomLabel[CustomLabel.Count - 1] as Label).Location = new System.Drawing.Point(317, 119 + CustomLabel.Count*26);
     (CustomLabel[CustomLabel.Count - 1] as Label).Parent = tabPage2;
     (CustomLabel[CustomLabel.Count - 1] as Label).Name = "label" + ValutaCustomScelta;
     (CustomLabel[CustomLabel.Count - 1] as Label).Text = ValutaCustomScelta;
     (CustomLabel[CustomLabel.Count - 1] as Label).Size = new System.Drawing.Size(77, 21);
     Controls.Add(CustomLabel[CustomLabel.Count - 1] as Control);
}

我需要创建tabPage2标签，但该行不行：

I need create labels on tabPage2, but this row not work:

 (CustomLabel[CustomLabel.Count - 1] as Label).Parent = tabPage2;

这是正确指令，在运行时创建tabPage2标签？ （IM使用Visual Studio 2010，Windows窗体）

Which is the correct instruction to create label on tabPage2 at runtime? (Im using visual studio 2010, windows form)

推荐答案

您需要将这些标签添加到控件标签页的集合：

You need to add the labels to the Controls collection of the tab page:

tabPage2.Controls.Add(CustomLabel[CustomLabel.Count - 1] as Control);

BTW：你不应该使用的ArrayList 。相反，使用列表与LT;标签> 。此外，第一初始化标签，比它添加到列表中。这使你的代码了很多更具可读性：

BTW: You shouldn't be using ArrayList. Instead use a List<Label>. Furthermore, first initialize the label, than add it to the list. This makes your code a lot more readable:

List<Label> customLabels = new List<Label>();

foreach (string ValutaCustomScelta in Properties.Settings.Default.ValuteCustom)
{
    Label label = new Label();
    label.Location = new System.Drawing.Point(317, 119 + customLabels.Count*26);
    label.Parent = tabPage2;
    label.Name = "label" + ValutaCustomScelta;
    label.Text = ValutaCustomScelta;
    label.Size = new System.Drawing.Size(77, 21);
    customLabels.Add(label);
    tabPage2.Controls.Add(label);
}

这篇关于在运行时创建标签的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！