如何以另一种形式显示结果？ [英] How to display the result in another form?

问题描述

大家好，我是c＃编码的新手。我想知道如何将字符串str1的值传递给另一个表单，并从下面的代码中以另一种窗体形式显示它。好吧，我可以在消息框中显示为MessageBox.Show（str1）;但是我想传递str1的值并以另一种形式显示它。



我尝试了什么：

使用System; 
使用System.Collections.Generic;使用System.ComponentModel 
; 
使用System.Data;使用System.Drawing 
; 
使用System.IO; 
使用System.Linq;使用System.Reflection 
; 
使用System.Text; 
使用System.Threading.Tasks; 
使用System.Runtime.InteropServices; 
使用MyExcel = Microsoft.Office.Interop.Excel; 
使用System.Windows.Forms; 
使用静态System.Windows.Forms.VisualStyles.VisualStyleElement; 
使用Microsoft.Vbe.Interop; 
使用System.Diagnostics; 
 
 
名称空间贷款
 {
 
公共部分类Form1：表格
 {
 public Form1（）
 {
 
 InitializeComponent（）; 
} 
 
 private void button1_Click（object sender，EventArgs e）
 {
 
 
 
 
 OpenFileDialog fdlg = new OpenFileDialog（）; 
 fdlg.Title =选择一个Excel文件; 
 fdlg.InitialDirectory = @d：\ test; 
 fdlg.Filter =所有文件（*。*）| *。* |所有文件（*。*）| *。*; 
 fdlg.FilterIndex = 2; 
 fdlg.RestoreDirectory = true; 
 
 
 
 
 
 if（fdlg.ShowDialog（）== DialogResult.OK）
 {
 MessageBox.Show（ 所选文件是：+ fdlg.FileName）; 
 
} 
 
 MyExcel.Application xlApp; 
 MyExcel.Workbook xlWorkBook; 
 MyExcel.Worksheet xlWorkSheet; 
 MyExcel.Range范围; 
 
 string cellValue; 
 int rCnt; 
 int cCnt; 
 int rw = 0; 
 int cl = 0; 
 
 Loans.Form2 frm = new Loans.Form2（）; 
 
 
 xlApp = new MyExcel.Application（）; 
 xlWorkBook = xlApp.Workbooks.Open（@ fdlg.FileName，0，true，5，，，true，Microsoft.Office.Interop.Excel.XlPlatform.xlWindows，\ t，false ，false，0，true，1,0）; 
 xlWorkSheet =（MyExcel.Worksheet）xlWorkBook.Worksheets.get_Item（1）; 
 
 range = xlWorkSheet.UsedRange; 
 rw = range.Rows.Count; 
 cl = range.Columns.Count; 
 
 //MessageBox.Show（Working）; 
 for（rCnt = 1; rCnt< = rw; rCnt ++）
 {
 for（cCnt = 1; cCnt< = cl; cCnt ++）
 {
 
 string str = Convert.ToString（（range.Cells [rCnt，N]为MyExcel.Range）.Value2）; 
 
 if（str ==3|| str ==4|| str ==5|| str ==6|| str ==7）
 {
 string str1 = Convert.ToString（（range.Cells [rCnt，cCnt] as MyExcel.Range）.Value2）; 
 MessageBox.Show（str1）; //想要以单独的形式显示str1的值
 // 
 
 
} 
 
 
} 
} 
 
 
 
 xlWorkBook.Close（true，null，null）; 
 xlApp.Quit（）; 
 
 Marshal.ReleaseComObject（xlWorkSheet）; 
 Marshal.ReleaseComObject（xlWorkBook）; 
 Marshal.ReleaseComObject（xlApp）; 
 
} 
 
 public void显示（字符串文本）
 {
 
 this.Show（）; 
} 
 
 
 
 
 private void Form1_Load（object sender，EventArgs e）
 {
 InitializeComponent（）; 
} 
 
 
} 
} 

解决方案

这取决于究竟是什么形式你想要显示它！

如果你还没有表格，那么它很容易。创建一个新表单（通过将其添加到您的项目 - 右键单击​​解决方案资源管理器窗格中的项目，然后在下拉菜单中）在设计器中为表单添加标签或文本框并为其指定一个合适的名称：theControlIWantToDisplayIn将做这个讨论。然后在表单中添加一个属性：

  public   string  DisplayThis 
 {
  get  { return  theControlIWantToDisplayIn.Text; } 
  set  {theControlIWantToDisplayIn.Text =  value ; } 
} 

然后，当您想要显示原始表单中的消息时：

 MyNewForm f =  new  MyNewForm（）; 
 f.DisplayThis = str1; 
 f.ShowDialog（）; 

如果您的表单已经可见，并且您想要向其添加信息，那么它更复杂，但其中一个应该有所帮助：

在两个表格之间传递信息，第1部分：父母与子女 [ ^ ]

在两种形式之间传递信息，第2部分：儿童到父母 [ ^ ]

在两种形式之间转移信息，第3部分：儿童到儿童 [<小时ef =https://www.codeproject.com/Tips/548160/Transferring-information-between-two-forms-Part\"target =_ blanktitle =New Window> ^ ]

hi guys, I am a newbie to c# coding. I wanted to know that how can i pass the values of the string str1 to another form and display it in another windows form from the below code. Well i can display it in a messagebox as "MessageBox.Show(str1);" but i want to pass the value of str1 and display it in another form.

What I have tried:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Runtime.InteropServices;
using MyExcel = Microsoft.Office.Interop.Excel;
using System.Windows.Forms;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;
using Microsoft.Vbe.Interop;
using System.Diagnostics;


namespace Loans
{

    public partial class Form1 : Form
    {
        public Form1()
        {

            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {




            OpenFileDialog fdlg = new OpenFileDialog();
            fdlg.Title = "Select an Excel File";
            fdlg.InitialDirectory = @"d:\test";
            fdlg.Filter = "All files (*.*)|*.*|All files (*.*)|*.*";
            fdlg.FilterIndex = 2;
            fdlg.RestoreDirectory = true;





            if (fdlg.ShowDialog() == DialogResult.OK)
            {
                MessageBox.Show("selected file is :" + fdlg.FileName);

            }

            MyExcel.Application xlApp;
            MyExcel.Workbook xlWorkBook;
            MyExcel.Worksheet xlWorkSheet;
            MyExcel.Range range;

            string cellValue;
            int rCnt;
            int cCnt;
            int rw = 0;
            int cl = 0;

            Loans.Form2 frm = new Loans.Form2();


            xlApp = new MyExcel.Application();
            xlWorkBook = xlApp.Workbooks.Open(@fdlg.FileName, 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
            xlWorkSheet = (MyExcel.Worksheet)xlWorkBook.Worksheets.get_Item(1);

            range = xlWorkSheet.UsedRange;
            rw = range.Rows.Count;
            cl = range.Columns.Count;

            //MessageBox.Show("Working");
            for (rCnt = 1; rCnt <= rw; rCnt++)
            {
                for (cCnt = 1; cCnt <= cl; cCnt++)
                {

                    string str = Convert.ToString((range.Cells[rCnt, "N"] as MyExcel.Range).Value2);

                    if (str == "3" || str == "4" || str == "5" || str == "6" || str == "7")
                    {
                        string str1 = Convert.ToString((range.Cells[rCnt, cCnt] as MyExcel.Range).Value2);
                        MessageBox.Show(str1); //want to display the values
                                               //of str1 in a seperate form  


                    }


                }
            }



            xlWorkBook.Close(true, null, null);
            xlApp.Quit();

            Marshal.ReleaseComObject(xlWorkSheet);
            Marshal.ReleaseComObject(xlWorkBook);
            Marshal.ReleaseComObject(xlApp);

        }

        public void Show(string text)
        {

            this.Show();
        }




        private void Form1_Load(object sender, EventArgs e)
        {
            InitializeComponent();
        }


    }
}

解决方案

That depends on exactly what form you want to display it in!
If you don't have a form yet, then it's pretty easy. Create a new form (by adding it to your Project - right click the Project in the Solution Explorer pane and it's in the drop down menu) Add a label or text box to your form in the designer and give it an appropriate name: theControlIWantToDisplayIn will do for this discussion. Then add a property to teh form:

public string DisplayThis
   {
   get { return theControlIWantToDisplayIn.Text; }
   set { theControlIWantToDisplayIn.Text = value; }
   }

Then, when you want to display the message from your original form:

MyNewForm f = new MyNewForm();
f.DisplayThis = str1;
f.ShowDialog();

If your form is already visible, and you want to add info to it, then it's more complex, but one of these should help:
Transferring information between two forms, Part 1: Parent to Child[^]
Transferring information between two forms, Part 2: Child to Parent[^]
Transferring information between two forms, Part 3: Child to Child[^]

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