在C中的form1和form2之间传递数据＃

问题描述：

我应该为孩子们做一个数学练习程序。他们应该能够选择1次操作和数字的数量（1位，2位或3位）。然后根据孩子的选择输出10个随机问题，然后一旦他们完成了测验，就应该显示他们的结果以及他们错误的问题。（*）2.（/）3.（+）4.（ - ））。我有两个选择正在form1，操作和位数，这是分配数字（1.（*）2.（/）3.（+）4.（ - ））。我所需要做的就是将操作编号和＃位数字传送给form2，问题将在这里生成和显示。在C中的form1和form2之间传递数据＃

这是我为Form1的代码至今：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace FinalProject 
{ 
public partial class Form1 : Form 
{ 
    public static int operation = 0; 
    public static int digits = 0; 

    public Form1() 
    { 
     InitializeComponent(); 
    } 
    // this is to make sure only one box is checked for both selections. Starts here 
    private void label1_Click(object sender, EventArgs e) 
    { 

    } 

    private void button2_Click(object sender, EventArgs e) 
    { 

    } 

    private void MulCB_CheckedChanged(object sender, EventArgs e) 
    { 


     if (MulCB.Checked == true) 
     { 
      operation = 1; 
      DivCB.Checked = false; 
      AddCB.Checked = false; 
      SubCB.Checked = false; 
     } 
    } 

    private void DivCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (DivCB.Checked == true) 
     { 
      operation = 2; 
      MulCB.Checked = false; 
      AddCB.Checked = false; 
      SubCB.Checked = false; 
     } 
    } 

    private void AddCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (AddCB.Checked == true) 
     { 
      operation = 3; 
      DivCB.Checked = false; 
      SubCB.Checked = false; 
      MulCB.Checked = false; 
     } 
    } 

    private void SubCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (SubCB.Checked == true) 
     { 
      operation = 4; 
      DivCB.Checked = false; 
      AddCB.Checked = false; 
      MulCB.Checked = false; 
     } 
    } 

    private void oneDCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if(oneDCB.Checked == true) 
     { 
      digits = 1; 
      twoDCB.Checked = false; 
      threeDCB.Checked = false; 
     } 
    } 

    private void twoDCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (twoDCB.Checked == true) 
     { 
      digits = 2; 
      oneDCB.Checked = false; 
      threeDCB.Checked = false; 
     } 
    } 

    private void threeDCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (threeDCB.Checked == true) 
     { 
      digits = 3; 
      oneDCB.Checked = false; 
      twoDCB.Checked = false; 
     } 
    } 
    private void button8_Click(object sender, EventArgs e) 
    { 
     // operations: 1. (*) 2. (/) 3. (+) 4. (-) 
     // digits are as number indicates. 



     // Second window popup. 
     Form2 settingsForm = new Form2(); 
     settingsForm.Show(); 
    } 
} 
}

这里的窗口2，赤裸裸的漂亮多了。

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace FinalProject 
{ 

public partial class Form2 : Form 
{ 


    public Form2() 
    { 
     InitializeComponent(); 
    } 

    private void FinishedBtn_Click(object sender, EventArgs e) 
    { 


    } 
}

}

嗨萨尔！你可以编辑你的问题：1.包含更少的代码，2.说出你已经尝试了什么，有没有工作，3.具体说明你想要发送/接收什么信息，以及你需要什么帮助用？另外，我认为@DourHighArch可能是正确的，这个问题是重复的。 –

如果您愿意，可以前往[帮助中心]（https://*.com/help/how-to-ask）获取有关如何针对SO提出更合适问题的提示。祝你好运，谢谢！ –

您将变量放在错误的表单中。 '公共静态int操作= 0; public static int digits = 0;'应该是在form2中，而不是1.它们是窗体的属性，可以在调用新实例后设置，如果它（如'Form2 settingsForm = new Form2（）;' – rudib

答

这可能会实现。代码中有评论。

工作流程正在创建类Form2的新实例并设置两个公共变量。公共意味着他们可以从课外进行访问（如果需要，请参见here）。然后调用方法Show()并显示窗体。在Form2代码中，公共变量现在具有先前指定的值并可以使用。

Form1中：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace FinalProject 
{ 
public partial class Form1 : Form 
{  
    public Form1() 
    { 
     InitializeComponent(); 
    } 
    // this is to make sure only one box is checked for both selections. Starts here 
    private void label1_Click(object sender, EventArgs e) 
    { 

    } 

    private void button2_Click(object sender, EventArgs e) 
    { 

    } 

    private void MulCB_CheckedChanged(object sender, EventArgs e) 
    { 


     if (MulCB.Checked == true) 
     { 
      operation = 1; 
      DivCB.Checked = false; 
      AddCB.Checked = false; 
      SubCB.Checked = false; 
     } 
    } 

    private void DivCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (DivCB.Checked == true) 
     { 
      operation = 2; 
      MulCB.Checked = false; 
      AddCB.Checked = false; 
      SubCB.Checked = false; 
     } 
    } 

    private void AddCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (AddCB.Checked == true) 
     { 
      operation = 3; 
      DivCB.Checked = false; 
      SubCB.Checked = false; 
      MulCB.Checked = false; 
     } 
    } 

    private void SubCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (SubCB.Checked == true) 
     { 
      operation = 4; 
      DivCB.Checked = false; 
      AddCB.Checked = false; 
      MulCB.Checked = false; 
     } 
    } 

    private void oneDCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if(oneDCB.Checked == true) 
     { 
      digits = 1; 
      twoDCB.Checked = false; 
      threeDCB.Checked = false; 
     } 
    } 

    private void twoDCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (twoDCB.Checked == true) 
     { 
      digits = 2; 
      oneDCB.Checked = false; 
      threeDCB.Checked = false; 
     } 
    } 

    private void threeDCB_CheckedChanged(object sender, EventArgs e) 
    { 
     if (threeDCB.Checked == true) 
     { 
      digits = 3; 
      oneDCB.Checked = false; 
      twoDCB.Checked = false; 
     } 
    } 
    private void button8_Click(object sender, EventArgs e) 
    { 
     // operations: 1. (*) 2. (/) 3. (+) 4. (-) 
     // digits are as number indicates. 



     // Second window popup. 
     // it's the question form, right? 
     Form2 questionForm = new Form2(); 
     //"Write" your settings in the other form's variables 
     //You will have to write code that finds out which checkbox is which number! For now its fixed. 
     questionForm.operation = 2; 
     questionForm.digits = 1; 
     questionForm.Show(); 
     //Hide Form1 
     this.Hide(); 
    } 
} 
}

窗体2：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace FinalProject 
{ 

public partial class Form2 : Form 
{ 
    public static int operation; 
    public static int digits; 


    public Form2() 
    { 
     InitializeComponent(); 

    } 

    //do NOT paste this. It can be added by creating an event handler 
    // you also might not need this, but this method is called when this Form appears. It's an example. 
    // https://msdn.microsoft.com/en-us/library/zwwsdtbk(v=vs.80).aspx 
    private void Form2_Load(object sender, EventArgs e) 
    { 
     //here you can use your variables for example (also anywhere within this class!) 
     //e.g. 
     Textbox1.Text = (string)operation; 
    } 

    private void FinishedBtn_Click(object sender, EventArgs e) 
    { 


    } 
} 
}

在C中的form1和form2之间传递数据＃

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