我如何计算比赛结果？

Question

我正在尝试创建一个跑步者，用户可以输入三个赛车手并为他们输入时间，其中结果将根据文本框中的最快时间显示，到目前为止我已完成编码但是我我不确定当我按下结果按钮时它为什么不起作用。

这是我的比赛代码

Private Sub btnCalculate_Click(sender As System.Object, e As System.EventArgs) Handles btnCalculate.Click

        Dim mRunner1Time As String
        Dim mRunner2Time As String
        Dim mRunner3Time As String


        mRunner1Time = (Val(uiRunner1TimeTextBox.Text))
        mRunner2Time = (Val(uiRunner2TimeTextBox.Text))
        mRunner3Time = (Val(uiRnner3TimeTextBox.Text))

        If mRunner1Time < mRunner3Time And mRunner1Time < mRunner2Time And _
                mRunner2Time < mRunner3Time Then

            uiFirstTextBox = uiRuuner1TextBox
            uiSecondTextBox = uiRunner2TextBox
            uiThirdTextBox = uiRunner3TextBox

        ElseIf mRunner1Time < mRunner3Time And mRunner1Time < mRunner2Time And
            mRunner3Time < mRunner2Time Then

            uiFirstTextBox = uiRuuner1TextBox
            uiSecondTextBox = uiRunner3TextBox
            uiThirdTextBox = uiRunner2TextBox

        ElseIf mRunner2Time < mRunner1Time And mRunner2Time < mRunner3Time And
            mRunner1Time < mRunner3Time Then

            uiFirstTextBox = uiRunner2TextBox
            uiSecondTextBox = uiRuuner1TextBox
            uiThirdTextBox = uiRunner3TextBox

        ElseIf mRunner2Time < mRunner1Time And mRunner2Time < mRunner3Time And
            mRunner3Time < mRunner1Time Then

            uiFirstTextBox = uiRunner2TextBox
            uiSecondTextBox = uiRunner3TextBox
            uiThirdTextBox = uiRuuner1TextBox


        ElseIf mRunner3Time < mRunner1Time And mRunner3Time < mRunner2Time And
            mRunner1Time < mRunner2Time Then

            uiFirstTextBox = uiRunner3TextBox
            uiSecondTextBox = uiRuuner1TextBox
            uiThirdTextBox = uiRunner2TextBox

        ElseIf mRunner3Time < mRunner1Time And mRunner3Time < mRunner2Time And
            mRunner2Time < mRunner1Time Then

            uiFirstTextBox = uiRunner3TextBox
            uiSecondTextBox = uiRunner2TextBox
            uiThirdTextBox = uiRuuner1TextBox
        End If
        End Sub