Allow userform input from a foreach loop?

I have a foreach loop that I need to pause in order to allow user input on the form.

foreach (XmlNode node2 in xml开发者_开发技巧File)
   {
       ...get currentRow from XML file
       ...update form label

       ???wait for user to enter data on form and press button
   }

Is there any sort of wait-for-user-input function in C# that I can use to do this?

UPDATE:

Based on the feedback I have successfully modified the program to:

• Load the XML list into a Queue (using the ForEach loop)
• Setup the user input to iterate through the Queue (remove top item, show next top item)

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Create you input form (use visual studio designer, is really simple), then show it in the loop by calling ShowDialog():

foreach(XmlNode node2 in xmlFile)
{
   //...
   MyInputForm form = new MyInputForm();
   form.ShowDialog(); // it waits until user close the input form
   var input = form.PropertyContainingInputFromTheUser;
   //...use the input

}

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You can open a modal form where the user can make the input.

If you want to stay on the same form all the time you better copy all nodes to an Queue<XmlNode>, process one at a time and when the user presses the button pick the next item in the Queue until the queue is empty.

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One way to do it would be to do a while loop which keeps checking for a value. However; depending on how you implement this and the overall structure of the application, this might cause the application to become unresponsive.

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I would not use this design. I would have a form that shows and maybe loop using a control on the form - not displaying a new form for every instance. Load the data into a data grid and let the user edit all of it and save at one time.