winform窗体传值小结

1 用属性传值

(子窗体)

private ArrayList arrlOut;

public ArrayList arrlIn//要用pulibc

{

set

{

this .arrlOut = value;//这里不能用arrlIn而要单独声明一个变量

}

get

{

return this .arrlOut ;

}

}

(主窗体,由它向子窗体传传值)

using System.Collections;//ArrayList引用空间

private ArrayList arrlOut;

private void btnShowForm4_Click(object sender, EventArgs e)

{

Form4 form4StudentInformation = new Form4();

form4StudentInformation.arrlIn = this.arrlOut ;

form4StudentInformation.Show();

}

2用方法传值

(主窗体)

using System.Collections;//ArrayList引用空间

private ArrayList arrlOut;

private void btnShowForm3_Click(object sender, EventArgs e)

{

Form3 formStudentInformation = new Form3();

formStudentInformation.setArray(arrlOut);

formStudentInformation.Show();

}

(子窗体)

private ArrayList arrlOut;

public void setArray(ArrayList arrayin)//要用pulibc

{

arrlOut = arrayin;

}

3构造函数传值

(子窗体)

private ArrayList arrlOut;

public studentOneInformationForm(ArrayList arrlIn)//构造函数中加了参数

{

InitializeComponent();

arrlOut = arrlIn;

}

(主窗体)

private void showFormInformation_Click(object sender, EventArgs e)

{

studentOneInformationForm studentOne = new studentOneInformationForm(this.arrlOut);//传参数

studentOne.Show();

}