How to use vb program to find different numbers in two text boxes and display them in another text box

1. How to use VB program to find different numbers in two text boxes and display them in another text box?

To find out the different numbers in two text boxes and display them in another text box in the VB program, you can follow the steps below: 1. Create three text boxes and name them txtBox1, txtBox2 and txtResult respectively. 2. Add a button to the program, name it btnCompare, and associate it with a click event. 3. Write code in the click event handler to compare the numbers in the two text boxes using an If statement. 4. Use the Val function to convert the text in the text box

1. Design interface:

   • Create three text boxes and use Two text boxes for entering numbers and one text box for displaying different numbers.

2. Write code:

   • Use VB code to write logic in the button click event to handle the search and sum of numbers show.

   Private Sub btnFindDifference_Click()
       ' 获取两个文本框中的数字
       Dim text1 As String
       Dim text2 As String
       text1 = TextBox1.Text
       text2 = TextBox2.Text
   
       ' 转换为数组
       Dim array1() As String = text1.Split(" ")
       Dim array2() As String = text2.Split(" ")
   
       ' 使用集合找到不同的数字
       Dim uniqueNumbers As New List(Of String)
       For Each num In array1
           If Not array2.Contains(num) AndAlso Not uniqueNumbers.Contains(num) Then
               uniqueNumbers.Add(num)
           End If
       Next
   
       ' 将不同的数字显示在第三个文本框
       TextBox3.Text = String.Join(" ", uniqueNumbers)
   End Sub

3. Test run:

   • Enter numbers into two text boxes, click the button to view the third text Different numbers shown in the box.

2. I would like to ask you about the text box and corresponding number in VB?

If you encounter the problem of how to use a text box and dynamically generate a corresponding number of text boxes in VB, you can follow the following steps to solve it:

1. Design interface:

   • Add a button on the form to generate a text box.

2. Write code:

   • Use VB code to dynamically generate a text box in a button click event.

   Private Sub btnGenerateTextBoxes_Click()
       ' 获取要生成的文本框个数（这里假设为10个）
       Dim numberOfTextBoxes As Integer = 10
   
       ' 动态生成文本框
       For i As Integer = 1 To numberOfTextBoxes
           Dim newTextBox As New TextBox
           newTextBox.Name = "TextBox" & i
           newTextBox.Text = "TextBox " & i
           ' 设置位置、大小等属性
           newTextBox.Top = (i - 1) * 30
           newTextBox.Left = 10
           ' 将文本框添加到窗体上
           Me.Controls.Add(newTextBox)
       Next
   End Sub

3. Test run:

   • Click the button to generate the corresponding number of text boxes and verify whether it is generated as expected .

Summary

In VB, you can find out the different numbers in the two text boxes by writing logical code. In addition, if you need to use text boxes in VB and dynamically generate a corresponding number of text boxes, you can write code in the button click event to achieve dynamic generation of text boxes. In this way, we can solve the puzzle easily.

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