在textChange事件上添加多个文本框文本

问题描述

嗨 我想添加多个文本框文本，然后在文本已更改"事件上添加文本，如果我删除了这些文本，则这些文本将从总数中减去
喜欢
在我的代码中，我按5，所以结果5
然后我按0，然后结果是55，数字是50
再次按1，结果是556，数字是501
因此，请对此提供帮助
在Advance中致谢

Hi I want to Add multiple textbox text add on text Changed event and if i delete those text so these subtract from the total
Like
in My Code i press 5 so result 5
and after that i press 0 then result is 55 and number is 50
and again i press 1 the result is 556 and number is 501
so pls help on this
Thanks in Advance

推荐答案

private void tbNumberEntry_TextChanged(object sender, EventArgs e)
    {
    TextBox tb = sender as TextBox;
    if (tb != null)
        {
        string numbersEntered = tb.Text;
        ...
        }
    }

然后处理输入文本中的每个字符:

Then process each character in the entered text:

foreach (char c in numbersEntered)
    {
    ...
    }

并将其转换为int并添加到总数中.

And convert it to int and add to the total.

total += (int) char.GetNumericValue(c);
sb.Append(total.ToString());

您将需要定义一个int total和一个StringBuilder sb
然后只需将标签的值设置为以下值:

You will need to define a int total, and a StringBuilder sb
Then just set the value of your label with the value:

labTotal.Text = sb.ToString();

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