子窗体向主窗体传递参数

例1：我想把子窗体中的复选框的索引和选项值传递给主窗体

1、子窗体代码

public partial class Window2 : Window
{
	public delegate void SendMessagewin2(int checkindex, string value);
	public SendMessagewin2 sendMessage;
	
	//“确定”控件的按钮
	private void Start_Click(object sender, RoutedEventArgs e)
	{
	   //将参数从子窗口传递给主窗口
	   sendMessage(1, m1Button.IsChecked.ToString());
	   this.Close();
	}
}

2、主窗体代码

public partial class DefaultWindow : Window
{
	//定义一个变量用来接收子窗体传过来的值，我只需要接收一个值
	public int w2check1 = 0;
	//接收从子窗体2传递的参数
    public void Receviewin2(int checkindex, string value)
    {
        if (checkindex == 1)
            w2check1 = Convert.ToInt32(bool.Parse(value));
    }
}

例2：我想把子窗体中的组合框的值和文本框的值传递给主窗体

1、子窗体代码

public partial class Window3 : Window
{
    public delegate void SendMessagewin3(int dwgindex, double height);
    public SendMessagewin3 sendMessage;
	
	//“确定”控件的按钮
	private void Start_Click(object sender, RoutedEventArgs e)
    {
        //将参数从子窗口传递给主窗口
        sendMessage(cbxDWG.SelectedIndex, Convert.ToDouble(textBox.Text));
    }
}

2、主窗体代码

public partial class DefaultWindow : Window
{
	//定义两个变量用来接收子窗体传过来的值
    public int dwgindex;
    public double height = 7;
	//接收从子窗体3传递的参数
    public void Receviewin3(int dwgindexin, double heightin)
    {
        height = heightin;
        dwgindex = dwgindexin;
    }
}