我如何在大量标签文本中搜索并且标签颜色会变为红色 [英] how i can search inside a lot of labels text and the label color would change to red

问题描述

快速问题如何在 60 个 labels.text 中搜索文本并且标签颜色会改变.提前致谢，感谢上次的帮助

Quick question how can I search text inside 60 labels.text and the label color will change. Thanks in advance and I appreciate the help last time

dim Nc as color = color.RED
dim Oc as color = Color.Black

'' i need to search in multiple labels.text using txt1.text if possible
if txt1.text = label1.text then
    laebl1.forecolor = Nc
End IF

有更简单的方法吗?

推荐答案

按照 @Chetan_Ranpariya 提供的答案，将代码翻译成 VB.Net(用一个小的调整)它会是这样的:

Following the answer provided by @Chetan_Ranpariya and translating the code to VB.Net (with a small tweak) it would be something like this:

Imports System.Collections.Generic
Public Class Form1
    Private lstControls As List(Of Tuple(Of TextBox, Label))
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        lstControls = New List(Of Tuple(Of TextBox, Label))
        lstControls.Add(Tuple.Create(TextBox1, Label1))
        lstControls.Add(Tuple.Create(TextBox2, Label2))
        lstControls.Add(Tuple.Create(TextBox3, Label3))
        lstControls.Add(Tuple.Create(TextBox4, Label4))
        lstControls.Add(Tuple.Create(TextBox5, Label5))
        lstControls.Add(Tuple.Create(TextBox6, Label6))
        lstControls.Add(Tuple.Create(TextBox7, Label7))
    End Sub
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        For Each tuplePair As Tuple(Of TextBox, Label) In lstControls
            If tuplePair.Item1.Text = tuplePair.Item2.Text Then
                tuplePair.Item2.ForeColor = Color.Red
            End If
        Next
    End Sub
End Class

基本上为此，您需要一个 元组列表，因为每个控件都有一对，因此效率更高.在 For Each 语句中，您可以包含一个 Else 子句以将颜色更改为另一种颜色(我认为这是为了向用户指示表单上的必填字段)
试一试，让我知道你的意见

Basically for this you need a List of Tuple which is more efficient since every control has a pair. Inside the For Each statement you can include an Else clause to change the color to another one (I think this is to indicate the user the required fields on a form)
Give it a try and let me know your comments

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