由于概念证明，我想在文本框中写完成的在的复选框被选中，并一键一直pssed在文本框中$ P $（在任订购）。我希望这个code来处理这个问题，但它写就这两种情况下发生的完成。感谢您的帮助。

 无功序列= Observable.FromEvent＆LT; EventArgs的＆GT;（this.checkBox的CheckedChanged）
   .Merge（Observable.FromEvent＆LT;关键pressEventArgs＆GT;（this.textBox，关键preSS））;

seq.Subscribe（（未使用）=＆GT; this.resultTextBox.Text =完成）;
 

解决方案

您可以使用Observable.When像这样（我已经添加了一个额外的复选框本示例）：

  VAR checkChanged = Observable.FromEvent＆LT; EventArgs的＆GT;（this.checkBox的CheckedChanged）;
VAR check1Changed = Observable.FromEvent＆LT; EventArgs的＆GT;（this.checkBox1的CheckedChanged）;
VAR键preSS = Observable.FromEvent＆LT;关键pressEventArgs＆GT;（this.textBox，关键preSS）;

VAR计划1 = checkChanged
            。而（check1Changed）。而（键preSS）
            。然后（（CC，CC1，KP）=＆gt;中。完成）;

VAR当= Observable.When（计划1）;

when.Subscribe（（结果）=＆GT; this.resultTextBox.Text =结果）;
 

另外，如果你可以加入其他计划一起，例如，如果事情可以做当任一组事件触发，或者还当另一组事件触发：

  VAR checkChanged = Observable.FromEvent＆LT; EventArgs的＆GT;（this.checkBox的CheckedChanged）;
VAR check1Changed = Observable.FromEvent＆LT; EventArgs的＆GT;（this.checkBox1的CheckedChanged）;
VAR键preSS = Observable.FromEvent＆LT;关键pressEventArgs＆GT;（this.textBox，关键preSS）;
VAR键preSS1 = Observable.FromEvent＆LT;关键pressEventArgs＆GT;（this.textBox1，关键preSS）;

VAR计划1 = checkChanged.And（check1Changed）。而（键preSS）。然后（（CC，CC1，KP）=＆gt;中完成的。）;
VAR plan2 =键press.And（键preSS1）。然后（（KP，KP1）=＆gt;中交替进行。）;

VAR加入= Observable.When（计划1，plan2）;
 

As a proof of concept, I want to write "Done" in a text box after a check box has been checked and a key has been pressed in a text box (in either order). I would expect this code to handle this, but it writes Done as soon as either event happens. Thanks for your help.

var seq = Observable.FromEvent<EventArgs>(this.checkBox, "CheckedChanged")
   .Merge(Observable.FromEvent<KeyPressEventArgs>(this.textBox, "KeyPress"));

seq.Subscribe((unused) => this.resultTextBox.Text = "Done");

You can use Observable.When like so (I've added an additional CheckBox for this example):

var checkChanged  = Observable.FromEvent<EventArgs>(this.checkBox, "CheckedChanged");
var check1Changed = Observable.FromEvent<EventArgs>(this.checkBox1, "CheckedChanged");
var keyPress      = Observable.FromEvent<KeyPressEventArgs>(this.textBox, "KeyPress");

var plan1 = checkChanged
            .And(check1Changed).And(keyPress)
            .Then((cc, cc1, kp) => "Done.");

var when = Observable.When(plan1);

when.Subscribe((result) => this.resultTextBox.Text = result);

Also, if you can join other plans together, for example if things can be "done" when either one set of events fire, or also when another set of events fire:

var checkChanged  = Observable.FromEvent<EventArgs>(this.checkBox, "CheckedChanged");
var check1Changed = Observable.FromEvent<EventArgs>(this.checkBox1, "CheckedChanged");
var keyPress      = Observable.FromEvent<KeyPressEventArgs>(this.textBox, "KeyPress");
var keyPress1     = Observable.FromEvent<KeyPressEventArgs>(this.textBox1, "KeyPress");

var plan1 = checkChanged.And(check1Changed).And(keyPress).Then((cc, cc1, kp) => "Done.");
var plan2 = keyPress.And(keyPress1).Then((kp, kp1) => "Alternate done.");

var join = Observable.When(plan1, plan2);