C#WINFORM窗体传参的最佳实践
进入VS2005后,大家可以发现子窗体操作父窗体不能沿用2003下的方法:把父窗体的空间访问属性由private改为public.IDE已经把控件声明这部分代码隐藏了,所以只有采用更加对象一点的方法。
父窗体与子窗体间的参数传递我采用的步骤如下:
1 父窗体中声明一个静态的父窗体类型的临时对象
public static frmFather frmFatherTemp;
2 父窗体构造函数中对该变量赋值
public frmFather()
{
InitializeComponent();
frmFatherTemp = this;
}
3 把要传递的参数设置为父窗体的一个属性,并设置访问器。访问其的set方法中进行了参数与父窗体控件绑定的操作。
private string testValue;
public string TestValue
{
get
{
return testValue;
}
set
{
this.testValue = value;
this.txtFather.Text = value;
}
}
4 父窗体参数传递事件中对要传递的参数赋值,并打开子窗体。父窗体的工作到此结束。
this.TestValue = this.txtFather.Text;
frmSon frm = new frmSon();
frm.ShowDialog();
5 子窗体构造函数中设置传递参数与子窗体控件的绑定操作
public frmSon()
{
InitializeComponent();
this.txtSon.Text = frmFather.frmFatherTemp.TestValue;
}
6 子窗体回传事件中,对父窗体的临时对象的该参数属性赋值
public frmSon()
{
InitializeComponent();
this.txtSon.Text = frmFather.frmFatherTemp.TestValue;
}
ok。一切搞定!
全部代码如下:
frmFather.cs
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frmSon.cs
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例子程序:
/Files/heekui/winFormParameterPass.rar
以上想法给新手们一点参考,请高手指教。