如何在usercontrol中改善我的double.Parse属性 [英] How to improve my double.Parse property in usercontrol

问题描述

我在UserControl上有以下代码，由单个文本框组成.

I have the following code on a UserControl, consisting of a single textbox.

public double txt
{
    get { return double.Parse(txtInputSmall.Text); }
    set { txtInputSmall.Text = value.ToString(); }
}

public string text
{
    get { return txtInputSmall.Text; }
    set { txtInputSmall.Text = value; }
}

我想要可以处理double的东西，像这样在这里为我解析，这样我就不必为添加到WinForm的每个UserControl都进行解析.问题是，当我进入WinForm的设计视图时，我不断收到以下消息:

I want something that handles the double.Parse for me, like here, so that I don''t need to do it for every UserControl I add to my WinForm. The problem is, when my I''m in design view of my WinForm, I keep getting the following message:

Code generation for property 'txt' failed. Error was: 'Property accessor 'txt' on object 'inputcontrolSmall12' threw the following exception: "Input string was not in a correct format"

我认为设计人员希望文本框中的字符串为double，而不是double，因为它为空.我该如何改进这段代码?

I think the designer expects the string in the textbox to be a double, which is not, because it''s empty. How can I improve this piece of code?

推荐答案

如果要解析双精度型，请使用

If you want to parse a double, then use the Double.TryParse[^] method provided by the framework.

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