如何在单击按钮时从 C# 中的面板获取动态创建的文本框值

Question

我在面板内单击按钮时创建动态文本框并存储数字并想检索其文本并计算该数字的总和我该怎么做？

以下是我生成文本框的代码

        private void btnMaterialAdd_Click(object sender, EventArgs e)

        {
            TextBox[] txtTeamNames = new TextBox[100];
            txtTeamNames[i] = new TextBox();
            string name = "TeamNumber" + i.ToString();
            txtTeamNames[i].Location = new Point(1,  i * 30  );
            txtTeamNames[i].Width = 30;
            txtTeamNames[i].Name = "ID" + i;
            txtTeamNames[i].Visible = true;
            int num = i + 1 ;
            txtTeamNames[i].Text = num.ToString();
            panel1.Controls.Add(txtTeamNames[i]);

        }

如何统计每个文本框的总值并显示？

Answer 1

摆脱 Array 并在 Class 级别使用 List（不是您的方法中的局部变量）：

    private List<TextBox> TextBoxes = new List<TextBox>();

    private void btnMaterialAdd_Click(object sender, EventArgs e)
    {
        TextBox tb = new TextBox();
        int i = TextBoxes.Count + 1;
        tb.Location = new Point(1, i * 30);
        tb.Width = 30;
        tb.Name = "ID" + i;
        tb.Text = i.ToString();
        TextBoxes.Add(tb);
        panel1.Controls.Add(tb);
    }

现在您可以迭代该列表何时获得总数：

    private void btnTotal_Click(object sender, EventArgs e)
    {
        int value;
        int total = 0;
        foreach (TextBox tb in TextBoxes)
        {
            if (int.TryParse(tb.Text, out value))
            {
                total = total + value;
            }
            else
            {
                MessageBox.Show(tb.Name + " = " + tb.Text, "Invalid Value");
            }
        }
        MessageBox.Show("total = " + total.ToString());
    }

如何在单击按钮时从 C# 中的面板获取动态创建的文本框值

how to get dynamic created text box value from panel in c# on button click

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