blocks|key|3165170|text|我认为你想做%2B=和-=：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3165171|private+void+pictureBox2_Click(object+sender,+EventArgs+e)
{
++++sF1411BindingSource.Position+%2B=+1;
}|code-block|syntax|javascript|3165172|和|3165173|private+void+pictureBox1_Click(object+sender,+EventArgs+e)
{
++++sF1411BindingSource.Position+-=+1;
}|3165174|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I think that you want to do += and -=:

<pre><code>private void pictureBox2_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position += 1;
}
</code></pre>

and

<pre><code>private void pictureBox1_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position -= 1;
}
</code></pre>

blocks|key|1848401|text|用于递增和递减的%2B=和-=在C#和VB中是相同的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1848402|sF1411BindingSource.Position+%2B=+1;+

sF1411BindingSource.Position+-=+1;|code-block|syntax|javascript|1848403|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

+= and -= for incrementing and decrementing is the same in C# and VB.

<pre><code>sF1411BindingSource.Position += 1; 

sF1411BindingSource.Position -= 1;
</code></pre>

blocks|key|3165122|text|如果要递增该值，请使用%2B=：Position+%2B=+1;|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3165123|entityMap^0|E|E|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

If you want to increment the value, use +=: <code>Position += 1;</code>

blocks|key|3165152|text|您应该改用Position+%2B=+1；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3165153|Private+void+pictureBox2_Click(object+sender,+EventArgs+e)+{+sF1411BindingSource.Position+%2B=+1;+}


private+void+pictureBox1_Click(object+sender,+EventArgs+e)+{+sF1411BindingSource.Position+-=+1;+}|code-block|syntax|javascript|3165154|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You should use Position += 1; instead

<pre><code>Private void pictureBox2_Click(object sender, EventArgs e) { sF1411BindingSource.Position += 1; }


private void pictureBox1_Click(object sender, EventArgs e) { sF1411BindingSource.Position -= 1; }
</code></pre>

blocks|key|1848392|text|也许你的意思是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1848393|private+void+pictureBox2_Click(object+sender,+EventArgs+e)
{
++++sF1411BindingSource.Position+%2B=1;
}++|code-block|syntax|javascript|1848394|1848395|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|K|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|L|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|M|8|@]|9|@]|A|$]]]|I|$]]

Maybe you mean: 

<pre><code>private void pictureBox2_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position +=1;
} 
</code></pre>

?

blocks|key|3165247|text|您的意图是让方法pictureBox2_Click在sF1411BindingSource.Position中加1吗？如果是这种情况，您需要使用%2B=+operator。使用-=+operator递减1。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3165248|private+void+pictureBox2_Click(object+sender,+EventArgs+e)
{
+++++sF1411BindingSource.Position+%2B=+1;+
}|code-block|syntax|javascript|3165249|此外，我认为在递增或递减位置之前，您可能想要检查您是在最后一个位置还是在第一个位置。|3165250|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/sa7629ew.aspx|1|http://msdn.microsoft.com/en-us/library/2y9zhhx1.aspx^0|20|B|0|2E|B|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]|$A|Y|B|Z|1|10]]|C|$]]|$1|D|3|E|5|F|7|11|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|12|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]|S|$5|N|O|P|C|$Q|T]]]]

Is your intent that the method pictureBox2_Click will add 1 to sF1411BindingSource.Position ? If that's the case you need to use the <a href="http://msdn.microsoft.com/en-us/library/sa7629ew.aspx" rel="nofollow">+= operator</a>. Use the <a href="http://msdn.microsoft.com/en-us/library/2y9zhhx1.aspx" rel="nofollow">-= operator</a> to decrement by 1.

<pre><code>private void pictureBox2_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position += 1; 
}
</code></pre>

Also, I think you might want to check whether you're at the last or first position before incrementing or decrementing the Position.

blocks|key|4575855|text|正如其他人正确指出的那样，您应该使用%2B=和-=运算符，它们由编译器转换为加法和赋值表达式：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4575856|int+a+=+10;
int+b+=+20;
a+%2B=+b;|code-block|syntax|javascript|4575857|是写作的捷径|4575858|int+a+=+10;
int+b+=+20;
a+=+a+%2B+b;|4575859|但是，考虑到您只想增加和减少一个位置，您可以使用较短的C风格的%2B%2B和--运算符：|4575860|private+void+pictureBox2_Click(object+sender,+EventArgs+e)
{
++++sF1411BindingSource.Position%2B%2B;
}

private+void+pictureBox1_Click(object+sender,+EventArgs+e)
{
++++sF1411BindingSource.Position--;
}|4575861|这可能有点离题，但我也建议您利用C#+lambda表达式进行事件处理。由于您在事件处理程序中所做的工作不多，因此可以在构造函数中将它们定义为一行程序：|4575862|public+MyForm+()
{
++++InitializeComponent();

++++nextRecordBox.Click+%2B=+(sender,+e)+=>
++++++++bindingSource.Position%2B%2B;
++++prevRecordBox.Click+%2B=+(sender,+e)+=>
++++++++bindingSource.Position--;
}+|4575863|这些功能仅从C#+3.0开始可用，但您可以使用C#+2.0+anonymous+delegates来实现相同的目的。它们节省了大量的空间，避免了单行方法的占用。|4575864|至于具体的例子，我建议使用MovePrevious和MoveNext方法。它们也是在BindingSource类中定义的，而且更加冗长。|4575865|当用户在最后一条记录上单击“下一步”时，您可能还想跳到开始处。这是如何完成的：|4575866|nextRecordBox.Click+%2B=+(sender,+e)+=>+{
++++++++if+(bindingSource.Position+==+bindingSource.Count+-+1)+//+is+last
++++++++++++bindingSource.MoveFirst+();
++++++++else+bindingSource.MoveNext+();
++++};|4575867|还有，，请对UI元素使用好的名称。|4575868|谢谢，丹|4575869|entityMap|0|LINK|mutability|MUTABLE|url|http://ondotnet.com/pub/a/dotnet/2004/04/05/csharpwhidbeypt1.html^0|I|2|L|2|0|0|0|0|V|2|Y|2|0|0|0|0|U|J|0|0|D|C|Q|8|16|D|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1G|8|@$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|1L|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1M|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|1N|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1O|8|@$9|1P|A|1Q|B|C]|$9|1R|A|1S|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|H|7|1T|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|1U|8|@]|D|@]|E|$]]|$1|U|3|V|5|H|7|1V|8|@]|D|@]|E|$I|J]]|$1|W|3|X|5|6|7|1W|8|@]|D|@$9|1X|A|1Y|1|1Z]]|E|$]]|$1|Y|3|Z|5|6|7|20|8|@$9|21|A|22|B|C]|$9|23|A|24|B|C]|$9|25|A|26|B|C]]|D|@]|E|$]]|$1|10|3|11|5|6|7|27|8|@]|D|@]|E|$]]|$1|12|3|13|5|H|7|28|8|@]|D|@]|E|$I|J]]|$1|14|3|15|5|6|7|29|8|@]|D|@]|E|$]]|$1|16|3|17|5|6|7|2A|8|@]|D|@]|E|$]]|$1|18|3|-4|5|6|7|2B|8|@]|D|@]|E|$]]]|19|$1A|$5|1B|1C|1D|E|$1E|1F]]]]

As others have correctly pointed out, you should use += and -= operators, which are translated by compiler into addition and assignment expressions:

<pre><code>int a = 10;
int b = 20;
a += b;
</code></pre>

is a shortcut to writing

<pre><code>int a = 10;
int b = 20;
a = a + b;
</code></pre>

However, seeing that you only want to increase and decrease position by one, you may use shorter C-style ++ and -- operators:

<pre><code>private void pictureBox2_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position++;
}

private void pictureBox1_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position--;
}
</code></pre>

This may go a bit off-topic, but I also suggest you to take advantage of C# lambda expressions for event handling. Since you don't do much in the event handlers, you can define them as one-liners in the constructor:

<pre><code>public MyForm ()
{
 InitializeComponent();

 nextRecordBox.Click += (sender, e) =&gt;
 bindingSource.Position++;
 prevRecordBox.Click += (sender, e) =&gt;
 bindingSource.Position--;
} 
</code></pre>

These features are only available starting from C# 3.0 but you can use C# 2.0 <a href="http://ondotnet.com/pub/a/dotnet/2004/04/05/csharpwhidbeypt1.html" rel="nofollow">anonymous delegates</a> for the same purpose. They save a lot of space from being occupied with one-line methods.

As for the concrete example, I suggest using MovePrevious and MoveNext methods instead. They are defined in BindingSource class too, and are more verbose.

You might also want to jump to the start when user clicks 'Next' on last record.
This is how it would be done:

<pre><code>nextRecordBox.Click += (sender, e) =&gt; {
 if (bindingSource.Position == bindingSource.Count - 1) // is last
 bindingSource.MoveFirst ();
 else bindingSource.MoveNext ();
 };
</code></pre>

And, please, use good names for UI elements.

Thanks,
Dan

Ive got this following code in VB, want to use it into c# and I thought I had it right but when I click the event it only takes me to record #2, I have several records in my table. 

<pre><code>private void pictureBox2_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position = +1;
}
</code></pre>

Same for when I hit back. If I'm on record 12 for example, I click the event and bam to the 1st record. I'm a Vb guy and I'm trying to teach myself c# here so maybe I'm over looking something. 

<pre><code>private void pictureBox1_Click(object sender, EventArgs e)
{
 sF1411BindingSource.Position = -1;
}
</code></pre>

Thanks!

C# Position Question

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我用VB写了下面这段代码，我想把它用到c#中，我以为我做对了，但当我点击事件时，它只需要我记录#2，我的表中有几条记录。private void pictureBox2_Click(object sender, EventArgs e){    sF1411BindingSource.Position = +1;}我回击的时候也是一样。例如，如果我在第12条记录中，我单击事件并跳转到第1条记录。我

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