c#中窗体与窗体之间值的传递

方法一：利用set\get构造类的公有成员函数

###问题：

Form2为主窗体，子窗体Form6的值→子窗体Form3中

###代码：

主窗体Form2：

namespace GPS222
{
public partial class Form2 : Form
{
Form3 form3 = new Form3();//子窗体Form3
Form6 form6 = new Form6();//子窗体Form6
public Form2()
{
InitializeComponent();

form3.trans_BaudRate = form6.trans_BaudRate;
form3.trans_PortName = form6.trans_PortName;
form3.Show(this.dockPanel1);//子窗体Form6和子窗体Form3在dockPanel1中
}
}
}

子窗体Form6：

using WeifenLuo.WinFormsUI.Docking;
namespace GPS222
{
public partial class Form6 : DockContent
{
private string BaudRate = null;
private string PortName = null;
public Form6()
{
InitializeComponent();

BaudRate = "115200";
PortName = "com1";

}

public string trans_BaudRate
{
get
{
return BaudRate;
}
}
public string trans_PortName
{
get
{
return PortName;
}
}
}
}

子窗体Form3：

using WeifenLuo.WinFormsUI.Docking;
namespace GPS222
{
public partial class Form3: DockContent
{
private string BaudRate = null;
private string PortName = null;
public Form3()
{
InitializeComponent();
}
public string trans_BaudRate
{
set
{
BaudRate = value;
}
get
{
return BaudRate;
}
}
public string trans_PortName
{
set
{
PortName = value;
}
get
{
return PortName;
}
}
private void gbtnopen_Click(object sender, EventArgs e)
{
//Form3和Form6之间传值验证
Text1.Text = this.BaudRate;
Text2.Text = this.PortName;
}
}
}

方法二：利用类的公有数据成员（相当于方法一的简化，最好用！）

###问题：

Form2为主窗体，子窗体Form6的值→子窗体Form3中

###代码：

主窗体Form2：

namespace GPS222
{
public partial class Form2 : Form
{
Form3 form3 = new Form3();//子窗体Form3
Form6 form6 = new Form6();//子窗体Form6
public Form2()
{
InitializeComponent();

form3.BaudRate = form6.BaudRate;
form3.PortName = form6.PortName;
form3.Show(this.dockPanel1);//子窗体Form6和子窗体Form3在dockPanel1中
}
}
}

子窗体Form6：

using WeifenLuo.WinFormsUI.Docking;
namespace GPS222
{
public partial class Form6: DockContent
{
public string BaudRate = null;//private ---> public
public string PortName = null;
public Form6()
{
InitializeComponent();

BaudRate = "115200";
PortName = "com1";
}
}
}

子窗体Form3：

using WeifenLuo.WinFormsUI.Docking;
namespace GPS222
{
public partial class Form3: DockContent
{
public string BaudRate = null;//private ---> public
public string PortName = null;
public Form3()
{
InitializeComponent();
}
private void gbtnopen_Click(object sender, EventArgs e)
{
//Form3和Form6之间传值验证
Text1.Text = this.BaudRate;
Text2.Text = this.PortName;
}
}
}

方法三：通过构造类，一次性在窗体间传递多个值

###问题：

Form2为主窗体，子窗体Form7的多个值→子窗体Form4中

###代码：

所构造的类Net_Parameter：

namespace GPS222
{
public class Net_Parameter//类应为public访问控制属性
{
//所要传递的多个值均定义为Net_Parameter类的公有数据成员
public Byte partten_index;
public Byte data_index;
public bool save_data;
public string MAC_addr;
public Byte speed_index;
public string time;
public string num_frame;
public string data_per_frame;
public string textBox6;
public string textBox8;
public Net_Parameter(Byte p_i, Byte d_i, bool s_d, string M_a, Byte s_i, string t, string n_f, string d_p_f,                   string tB6, string tB8)
{
partten_index = p_i;
data_index = d_i;
save_data = s_d;
MAC_addr = M_a;
speed_index = s_i;
time = t;
num_frame = n_f;
data_per_frame = d_p_f;
textBox6 = tB6;//文件保存地址
textBox8 = tB8;//文件发送地址
}
}
}

主窗体Form2：

namespace GPS222
{
public partial class Form2 : Form
{
Form4 form4 = new Form4();//子窗体Form4
Form7 form7 = new Form7();//子窗体Form7
public Form2()
{
InitializeComponent();
form4.trans_net_parameter = form7.trans_net_parameter;
form4.Show(this.dockPanel1);

}
}
}

子窗体Form7：

using WeifenLuo.WinFormsUI.Docking;
namespace GPS222
{
public partial class Form7 : DockContent
{
Net_Parameter net_parameter=new Net_Parameter(0, 0, false, "", 0, "", "", "", "", "");//私有数据成员，仅可类的内部使用
public Form7()
{
InitializeComponent();

net_parameter.partten_index = 1;
net_parameter.data_index = 1;
net_parameter.save_data = true;
net_parameter.MAC_addr = "123456789012";
net_parameter.speed_index = 1;
net_parameter.time = "1";
net_parameter.num_frame = "12";
net_parameter.data_per_frame = "256";
net_parameter.textBox6 = "1234";
net_parameter.textBox8 ="123";
}
public Net_Parameter trans_net_parameter
{
get
{
return net_parameter;
}
}
}
}

子窗体Form4：

using WeifenLuo.WinFormsUI.Docking;
namespace GPS222
{
public partial class Form4 : DockContent
{
Net_Parameter net_parameter = new Net_Parameter(0, 0, false, "", 0, "", "", "", "", "");
public Form4()
{
InitializeComponent();
}
public Net_Parameter trans_net_parameter
{
set
{
net_parameter = value;
}
get
{
return net_parameter;
}
}
private void gbtnopen_Click(object sender, EventArgs e)
{
//Form4和Form7之间传值验证
Text1.Text = net_parameter.textBox6;
Text2.Text = net_parameter.textBox8;
}

}

}

方法四：设置公有静态变量static

方法五：owner使得子窗体可以直接调用主窗体中函数

###参考：

C#中如何在两个子窗体间传递参数
C#怎么把结构体从A窗体传到B窗体，在B窗体改变结构体的值后并返回到A窗体？

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