从父表单和子表单传递参数值 C#

发布于 2024-12-10 10:46:20 字数 992 浏览 1 评论 0原文

我有两个表单，一个带有“添加”按钮，它加载带有两个文本框和一个提交按钮的第二个表单。

首先，我需要一种将文本框值传递给表单 1（父表单）并使表单 2 在提交时关闭的方法。

我该如何执行此操作？到目前为止，我已经编写了这段代码，但它不起作用

 private void button1_Click(object sender, EventArgs e)
        {

            emailForm EmailF = new emailForm();
            if ((EmailF.Username != null &&  EmailF.Password != null)) 
            {
                string user = EmailF.Username;
                string pass = EmailF.Password;

            }

并且在 emailForm.cs 中

 private void button1_Click(object sender, EventArgs e)
        {
            username = username_textbox.Text;
            password = username_textbox.Text;
            Close();

        }

        public string Username
        {
            get { return username; }
            set { this.username = value; }
        }

        public string Password
        {
            get { return password;}
            set { this.password = value; }
        }

原文

I have two forms, one with a button 'Add' which loads the second form with two textboxes and a submit button.

First of all I need a way of passing the text box values to form 1 (parent) and making form 2 close on the submit..

How can I do this? Until now I have written this code but it is not working

 private void button1_Click(object sender, EventArgs e)
        {

            emailForm EmailF = new emailForm();
            if ((EmailF.Username != null &&  EmailF.Password != null)) 
            {
                string user = EmailF.Username;
                string pass = EmailF.Password;

            }

and in the emailForm.cs

 private void button1_Click(object sender, EventArgs e)
        {
            username = username_textbox.Text;
            password = username_textbox.Text;
            Close();

        }

        public string Username
        {
            get { return username; }
            set { this.username = value; }
        }

        public string Password
        {
            get { return password;}
            set { this.password = value; }
        }

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月朦胧 2024-12-17 10:46:20

您需要查看 Form.ShowDialog()。这将执行您想要的操作，当用户关闭对话框窗口时，您可以确保他们单击“确定”（或其他任何内容），然后从表单中获取值。

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初与友歌 2024-12-17 10:46:20

public void ShowMyDialogBox()
{
   Form2 testDialog = new Form2();

   // Show testDialog as a modal dialog and determine if DialogResult = OK.
   if (testDialog.ShowDialog(this) == DialogResult.OK)
   {
      // Read the contents of testDialog's TextBox.
      this.txtResult.Text = testDialog.TextBox1.Text;
   }
   else
   {
      this.txtResult.Text = "Cancelled";
   }
   testDialog.Dispose();
}

public void ShowMyDialogBox()
{
   Form2 testDialog = new Form2();

   // Show testDialog as a modal dialog and determine if DialogResult = OK.
   if (testDialog.ShowDialog(this) == DialogResult.OK)
   {
      // Read the contents of testDialog's TextBox.
      this.txtResult.Text = testDialog.TextBox1.Text;
   }
   else
   {
      this.txtResult.Text = "Cancelled";
   }
   testDialog.Dispose();
}

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