Question

这是错的吗？我有一个简单的表单，包含textbox1和textbox2以及一个按钮。当我把Textbox1 = 259和textbox2 = 1500 我点击，他说＆＃34;你的号码太高＆＃34; 我尝试了151＆＃34;你的号码太高＆＃34; 我尝试了150＆＃34; ok＆＃34; 我尝试1500＆＃34; ok＆＃34; 我尝试1501＆＃34;你的号码太高＆＃34;

帮助.........

Public Class test

Private Sub test_Load(sender As Object, e As EventArgs) Handles MyBase.Load

End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    If TextBox1.Text > TextBox2.Text = True Then
        MsgBox("You're number is too high")
    Else
        MsgBox("ok")
    End If

End Sub

结束班

Answer 1

您必须使用Val命令。

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
If Val(TextBox1.Text) > Val(TextBox2.Text) Then
  MsgBox("You're number is too high", "Wrong Input")
Else
  MsgBox("ok", "Input number") ' This also renames the msgbox itself, instead of just "error".
End If
End Sub

Answer 2

If Val(TextBox1.Text) > Val(TextBox2.Text) Then
        MsgBox("You're number is too high")
    Else
        MsgBox("ok")
    End If

将字符串转换为整数，双精度，小数等时，需要使用Val（字符串）函数。

vb net +检查Textbox1是否为＆lt; Texbox2

2 个答案: