C# 单击按钮时如何在标签中显示结果？
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How to display a result in a label when I click onto a button?
提问by Abid
On my GUI (Graphical User Interface), I have a button named Enter and a label.
When I click Enter, I want my result to be shown in the label. How do I do that?
在我的 GUI（图形用户界面）上，我有一个名为 Enter 的按钮和一个标签。
当我单击 时Enter，我希望我的结果显示在标签中。我怎么做？
回答by Oded
In winforms or webforms:
在 winforms 或 webforms 中：
label.Text = Enter.Text;
回答by Sam Holder
Double click on the button in the designer. This should create you a handler function for the buttons click event, something like this:
双击设计器中的按钮。这应该为按钮单击事件创建一个处理函数，如下所示：
private void Button_Click(object sender, EventArgs e)
{
}
then in the function add the code to set the text of the lable:
然后在函数中添加代码来设置标签的文本：
lable.Text = myResult;
you should end up with something like this:
你应该得到这样的结果：
private void Button_Click(object sender, EventArgs e)
{
lable.Text = myResult;
}
As you said you have an int which is a percentage, and you have the value 0, I suspect that you are having problems getting the percentage not writing the value to the lable. so you might want to look at this questionas I suspect that you have something like:
正如您所说，您有一个整数，它是一个百分比，并且您的值为 0，我怀疑您在获取百分比时遇到了问题，而不是将值写入标签。所以你可能想看看这个问题，因为我怀疑你有这样的事情：
int valuea;
int valueb;
int result= valuea/valueb*100;
in this example if valuea=45 and valueb=100 the value of result will be 0, not 45.
在此示例中，如果 valuea=45 和 valueb=100，则结果的值将为 0，而不是 45。
回答by Anders
For windows forms use the .Text property on the label:
对于 Windows 窗体，请使用标签上的 .Text 属性：
private void btnEnter_Click(object sender, EventArgs e)
{
int themeaningoflifeuniverseandeverything = 420 / 10;
lblResult.Text = themeaningoflifeuniverseandeverything.ToString();
}
See exampe: ButtonEvent.zip
参见示例：ButtonEvent.zip
回答by Pratik Deoghare
int result = 0; // declare a private variable to hold the result
// Event handler for Click of Enter button
private void Enter_Click(object sender, EventArgs e)
{
result = Add(10,20); // set result to result of some function like Add
label.Text = result.ToString();
}
private int Add(int a, int b)
{
return a + b;
}
NOTE: I assume you are a beginner working with Winforms.
注意：我假设您是使用 Winforms 的初学者。
回答by Krishna Prasad
Double click on button to generate event and write following code
双击按钮生成事件并编写以下代码
private void Button_Click(object sender, EventArgs e)
{
lable1.Text = ur result; //result must be in string format otherwise convert it to string
}
