如何不计算代码中的空间 [英] How to not count Space in the code

问题描述

我做了一个表格来添加具有3个基本功能的注释
1.输入笔记
2.清除按钮
3.保存按钮.
基本功能是，直到或除非我在文本框中输入注释，否则应禁用清除和保存按钮.输入注释后，应立即启用清除和保存按钮.
但是
如果我在文本框内放置空格"，则也应禁用两个按钮，即不应将空格计为一个值.
我已经在下面编写了代码条件，这是我使用的粗略逻辑，并且工作正常.

I have made a form to add notes which has 3 basic fucntionalities
1.to enter notes
2.clear button
3.save button.
The basic functionality is, until or unless i enter notes in the textbox the clear and save button should be disabled.As soon as i enter notes the clear and save button should be enabled.
BUT
If i put "space"inside the textbox then also both the buttons should be disabled i.e space should not be counted as a value.
i have written a code condition below this is the rough logic i used and is working fine.

public CanClearNotes()
{
 If(AddNotes !=null)
{
(AddNotes !=null && !AddNotes.Notes.Equals(string.Empty))
}
return true;
}
return false;

注释是我们在文本框中输入的注释.


返回true将启用清除按钮(为保存按钮编写了相同的代码)

我应该进行哪些修改，以使其不将空格"作为一个值，并且如果我在开头输入空格，则应禁用两个按钮.

P.S:应该在两个单词之间启用空格.

Notes is the notes which we enter into the textbox.


return true will enable clear the button(same code is written for save button)

What modification should i make so that it does not count "Space" as a value and if i enter space in the beginning both the buttons should be disabled.

P.S: Space should be enabled in between two words.

推荐答案

尝试此操作
注意:我在示例中使用了一个文本框.

try this
Note: I used a text box in my example.

if (!textBox1.Text.Trim().Equals(String.Empty))
{
    button1.Enabled = true;
}
else
{
    //clear the whitespace from the textbox
    textBox1.Clear();
    button1.Enabled = false;
}

所以您可能想要这样的东西

so you would probably want something like this

public CanClearNotes()
{
    if(AddNotes != null && !AddNotes.Notes.Trim().Equals(String.Empty))
    {
        return true;
    }
    else
    {
        //clear the whitespace from the textbox (if AddNotes is a textBox?)
        AddNotes.Clear();
        return false;
    }
}

这是您要找的吗?

Is this what you are looking for?

public bool CanClearNotes()
{
    return !String.IsNullOrWhiteSpace(AddNotes);
}

更好

Better yet

public bool ButtonsEnabled
{
     get
     {
         return !String.IsNullOrWhiteSpace(AddNotes);
     }
}

尝试!AddNotes.Notes.Contains(" ").
这只会检查单个空格，而不是多个空格.

Try !AddNotes.Notes.Contains(" ").
This will only check for a single space, not for multiple spaces together.

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