如何将所有文本框的总和添加到Grand Total Text Box [英] How add sum of all total text boxes to Grand Total Text Box

问题描述

看到我总共有5个文本框，比如



TotalTextbox

Total1TextBox

Total2TextBox

Total3TextBox

Total4TextBox





我想要的是这些文本框应该出现的总和在总文本框中



请告诉我visual basic 2010的代码

See i have total 5 text boxes like

TotalTextbox
Total1TextBox
Total2TextBox
Total3TextBox
Total4TextBox


what i want is the sum of these text box should appear in grand Total Text Box

please tell me the code for visual basic 2010

推荐答案

我是m只使用2个文本框，根据您的要求进行更改： -

I''m using only 2 textboxes, Make changes as per your requirements :-

Private Sub txtMonT_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
    Handles txtMonT.TextChanged
    Dim number1 As Double
    Dim number2 As Double

    If Double.TryParse(txtMon1.Text, number1)
        And Double.TryParse(txtMon2.Text, number2) Then
        txtMonResult.Text = (number1 + number2).ToString()
    End If
End Sub

取一个按钮int文本字段将其命名为Grand Total Button然后双击它

take a button int text field name it as Grand Total Button then double click it

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click

    Dim Tot, Tot1, Tot2, Tot3, Tot4, Gtot As Double

    Tot = Val(TotalTextBox.Text)
    Tot1 = Val(Total1TextBox.Text)
    Tot2 = Val(Total2TextBox.Text)
    Tot3 = Val(Total3TextBox.Text)
    Tot4 = Val(Total4TextBox.Text)


    Gtot = Tot + Tot1 + Tot2 + Tot3 + Tot4
    Grand_TotalTextBox.Text = Val(Gtot).ToString
End Sub

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