C# 为什么我会得到；输入字符串的格式不正确"；在这里

如何解决以下行中出现的输入字符串错误：

 string body = String.Format(
     "The following leave request was made by user {o}: \n Date: {1} \t Hours: {2} \t Reason: {3}", 
     username.ToString(), 
     TxtBoxDate.Text,
     DDHours.SelectedValue+DDTimeWindow.SelectedValue, 
     TxtNotes.Text);

---

看起来您的字母是

o

而不是零

0

。尝试：

string body = String.Format("The following leave request was made by user {0}: \n Date: {1} \t Hours: {2} \t Reason: {3}", username.ToString(), TxtBoxDate.Text, DDHours.SelectedValue+DDTimeWindow.SelectedValue, TxtNotes.Text);

---

看起来您的字母是

o

而不是零

0

。尝试：

string body = String.Format("The following leave request was made by user {0}: \n Date: {1} \t Hours: {2} \t Reason: {3}", username.ToString(), TxtBoxDate.Text, DDHours.SelectedValue+DDTimeWindow.SelectedValue, TxtNotes.Text);

---

简单的打字，你用了

o

而不是

0
简单的打字，你用了
o
而不是
0
只要把“o”改成“0”（零）。
只要把“o”改成“0”（零）。
你用了“o”而不是“0”
{o}
<0}

    string body =
        String.Format(
            "The following leave request was made by user {0}: \n Date: {1} \t Hours: {2} \t Reason: {3}",
            username.ToString(), 
            TxtBoxDate.Text, 
            DDHours.SelectedValue + DDTimeWindow.SelectedValue,
            TxtNotes.Text);

您有一个O而不是零
{O}
->
{0}

    string body =
        String.Format(
            "The following leave request was made by user {0}: \n Date: {1} \t Hours: {2} \t Reason: {3}",
            username.ToString(), 
            TxtBoxDate.Text, 
            DDHours.SelectedValue + DDTimeWindow.SelectedValue,
            TxtNotes.Text);

哦，我真蠢。谢谢：没问题：如果解决了你的问题，请考虑接受答案。噢，我真蠢。谢谢）：没问题：如果解决了你的问题，请考虑接受答案。马克回答，请停止回答：“这个问题似乎是偏离主题的，因为它是关于在你的代码中找到一个打字的问题。”马克回答说：“请停止回答：滚滚进来：”这个问题似乎是偏离主题，因为它是关于找到一个打印错误。你的密码。