C# 将文本框转换为浮动
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Convert textbox to float
提问by b-fg
I've been looking for different ways to do it, but I still get the same error:
我一直在寻找不同的方法来做到这一点，但我仍然遇到相同的错误：
What I've tried:
我试过的：
float e = (float)Convert.ToDouble(e_textBox.Text);
bool valid = float.TryParse(e_textBox.Text.ToString(), out e);
And I get this error:
我得到这个错误：
Error 1 Cannot implicitly convert type 'float' to 'System.EventArgs'
am I doing that wrong? Thank you.
我做错了吗？谢谢你。
采纳答案by Justin Niessner
I'm guessing your code lives inside an event handler. One of the parameters to your handle will be EventArgs e:
我猜你的代码存在于一个事件处理程序中。句柄的参数之一是EventArgs e：
public void OnClick(object sender, EventArgs e)
{
float e = (float)Convert.ToDouble(e_textBox.Text);
bool valid = float.TryParse(e_textBox.Text.ToString(), out e);
}
You just need to come up with a new variable name (or rename the parameter to something other than e):
您只需要想出一个新的变量名称（或将参数重命名为 e 以外的名称）：
public void OnClick(object sender, EventArgs eargs)
{
float e = (float)Convert.ToDouble(e_textBox.Text);
bool valid = float.TryParse(e_textBox.Text.ToString(), out e);
}
