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我正在使用C＃與GTK編寫一個包含按鈕的主窗口的應用程序。當按下其中一個按鈕時，它會調用一個Event Handler函數，該函數打開一個包含用戶填寫表單的新窗口。到目前爲止，所有工作都很好。在C＃中打開GTK窗口，返回數據並關閉窗口，然後打開另一個窗口？
我遇到的問題是我需要讓這個Event Handler函數打開這個窗口，等待它被填充和關閉，然後打開第二個窗口，等待它被填充並且關閉，然後處理所有這些捕獲的數據。 我做了一個簡單的例子來說明我的意思（我在下面的例子中會更有意義打開一個窗口有兩個組合框明白，但那是因爲這只是一個例子！）
using System;
using Gtk;
namespace WaitingTest
{
public class MainClass
{
static void Main (string[] args)
{
Application.Init();
MenuWindow myWindow = new MenuWindow();
Application.Run();
}
}
public class MenuWindow
{
static string favDrink = "Water";
static string favCheese = "Chedder";
static Label output = new Label();
public MenuWindow()
{
Application.Init();
Window test = new Window ("Main Window");
VBox vb = new VBox();
Button getData = new Button("Get Data");
Button quitApp = new Button("Quit");
getData.Clicked += OnGetData;
quitApp.Clicked += OnExit;
vb.PackStart(getData, false, false, 1);
vb.PackStart(quitApp, false, false, 1);
vb.PackStart(output, false, false, 1);
test.Add(vb);
test.ShowAll();
Application.Run();
}
static void OnGetData(object sender, EventArgs args)
{
// Open up Window to select drink
WindowOne w1 = new WindowOne();
// Open up Window to select cheese
WindowTwo w2 = new WindowTwo();
// Display results in label
output.Text="Drink: "+favDrink+"\nCheese: "+favCheese;
}
public static void SetFavDrink(string d)
{
favDrink = d;
Console.WriteLine(favDrink);
}
public static void SetFavCheese(string c)
{
favCheese = c;
Console.WriteLine(favCheese);
}
static void OnExit(object sender, EventArgs args)
{
Application.Quit();
}
protected void OnDeleteEvent(object sender, DeleteEventArgs a)
{
Application.Quit();
a.RetVal = true;
}
}
class WindowOne
{
ComboBox drink = ComboBox.NewText();
static string choice;
public WindowOne()
{
Window w1 = new Window ("Window One");
VBox vb = new VBox();
Button sendDrink = new Button("Send Drink");
sendDrink.Clicked += OnSend;
drink.Changed += new EventHandler(onDrinkChanged);
drink.AppendText("Beer");
drink.AppendText("Red Wine");
drink.AppendText("White Wine");
drink.AppendText("Whiskey");
vb.PackStart(drink, false, false, 1);
vb.PackStart(sendDrink, false, false, 1);
w1.Add(vb);
w1.ShowAll();
}
void OnSend(object sender, EventArgs args)
{
WaitingTest.MenuWindow.SetFavDrink(choice);
}
void onDrinkChanged(object o, EventArgs args)
{
ComboBox combo = o as ComboBox;
if (o == null)
return;
TreeIter iter;
if (combo.GetActiveIter (out iter))
choice = ((string) combo.Model.GetValue (iter, 0));
}
}
class WindowTwo
{
ComboBox cheese = ComboBox.NewText();
static string choice;
public WindowTwo()
{
Window w2 = new Window ("Window Two");
VBox vb = new VBox();
Button sendCheese = new Button("Send Cheese");
sendCheese.Clicked += OnSend;
cheese.Changed += new EventHandler(onCheeseChanged);
cheese.AppendText("Gorgonzola");
cheese.AppendText("Edam");
cheese.AppendText("Brie");
cheese.AppendText("Feta");
vb.PackStart(cheese, false, false, 1);
vb.PackStart(sendCheese, false, false, 1);
w2.Add(vb);
w2.ShowAll();
}
void OnSend(object sender, EventArgs args)
{
WaitingTest.MenuWindow.SetFavCheese(choice);
}
void onCheeseChanged(object o, EventArgs args)
{
ComboBox combo = o as ComboBox;
if (o == null)
return;
TreeIter iter;
if (combo.GetActiveIter (out iter))
choice = ((string) combo.Model.GetValue (iter, 0));
}
}
}
上述情況發生的是，兩個窗口一次打開，標籤立即用默認數據更新，而不是在兩個窗口中選擇的數據。所以我有兩個問題：
1）我怎樣才能打開WindowOne，等待數據被檢索，然後打開WindowTwo，等到數據被檢索，然後更新標籤？
2）如何編輯「OnSend」函數，以便在調用SetFavDrink/SetFaveCheese函數後關閉窗口？
難道有人請在這裏指出正確的方向嗎？我對這個編程百靈不熟悉，所以要溫柔！