Question

我创建了一个Bingo机器，可以调用和检查已调用的数字。一旦用户呼叫房屋，游戏将暂停，并将使用单独的表格来检查数字。这个单独的表格有1-90的数字，并将全部突出显示。我的问题是，如何突出显示已被调出的最后一个数字？

要求突出显示的所有号码的代码：

private void btnCheckNumbs_Click(object sender, EventArgs e)
{
    //Check to see what numbers have been called by calling on Global Variables. 
    for (int i = 1; i <= Globals.NextBalls; i++)
    {

        for (int k = 1; k <= 90; k++)
        {
            if (Globals.balls[i] == k)
            {
                TextBox txtName = (TextBox)this.Controls.Find("txtBoxs" + k.ToString(), true)[0];
                txtName.BackColor = Color.Crimson;

            }
        }
    }

这是Next Balls的代码，基本上txtBoxMainNo是显示要调用的最后一个数字的文本框。

 // Timer of the game

    private void GameTimer1_Tick(object sender, EventArgs e)
    {
        Globals.balls[1] = 1;
        txtboxMainNo.Text = Convert.ToString(Globals.balls[Globals.NextBalls]);
        Globals.NextBalls = Globals.NextBalls + 1;
        SpVoice obj = new SpVoice();

        int i = Convert.ToInt32(txtboxMainNo.Text);
        obj.Speak(Globals.bingocomments[i], SpeechVoiceSpeakFlags.SVSFDefault);

        if (Globals.NextBalls >= 91) { GameTimer1.Enabled = false; }
    }

Answer 1

嘿，如果您只想突出显示最后一个元素，我只需添加一个List并获取最后一个索引。然后突出显示该元素的颜色。

 private void btnCheckNumbs_Click(object sender, EventArgs e)
        {
            var list = new List<TextBox>();
            //Check to see what numbers have been called by calling on Global Variables. 
            for (int i = 1; i <= Globals.NextBalls; i++)
            {

                for (int k = 1; k <= 90; k++)
                {
                    if (Globals.balls[i] == k)
                    {
                        TextBox txtName = (TextBox) this.Controls.Find("txtBoxs" + k.ToString(), true)[0];
                        list.Add(txtName);

                    }
                }
            }
        list.Last().BackColor = Color.Crimson;
        }

突出显示最后拨打的号码

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