如何将Form1 Combox1值刷新到Form2 Combox1 [英] how to Form1 Combox1 value refresh to Form2 Combox1

问题描述

在我的c＃应用程序中，有一个组合框，其中列出了客户名称，它放在MainForm中。有一个按钮用于在单击按钮时添加新客户，另一个表单打开，我们需要保存客户详细信息。在此之后我想重新加载组合框的'MainForm'以包含新名称或组合框以显示新名称。



AddForm frmAdd = new AddForm（） ;

this.Hide（）;

frmAdd.ShowDialog（）;

尝试{

this.Show （）;

}



然后在按钮上保存用户或返回MainForm：

MainForm frmMain = new MainForm（）;

this.Hide（）;

frmMain.ShowDialog（）;

try {

this.Show（）;

}



此代码也有帮助，但我希望旧形式刷新.. 。

没有新表格打开..





plzzzzzzzzzz帮帮我

In my c# application there is a combo box listing 'customer names' which is placed in the MainForm .There is a button for adding new customers when clicking on the button another form opens and we need to save customer details. After this i want to reload the 'MainForm' for the combobox to include the new name or the combobox to display the new name .

AddForm frmAdd = new AddForm();
this.Hide();
frmAdd.ShowDialog();
try{
this.Show();
}

Then on the button to save the user or return to the MainForm:
MainForm frmMain = new MainForm();
this.Hide();
frmMain.ShowDialog();
try{
this.Show();
}

this code is also help ful but iwant to old form to refresh ...
no new form open..


plzzzzzzzzzz help me

推荐答案

// Form1.cs

//Form1.cs

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

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        Form2 objForm2 = new Form2();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            comboBox1.DropDownStyle = ComboBoxStyle.DropDownList;
            comboBox1.Items.Add("Customer1");
            comboBox1.Items.Add("Customer2");
            comboBox1.Items.Add("Customer3");
            comboBox1.Items.Add("Customer4");

            comboBox1.SelectedIndex = 0;

        }

        private void btnAddCustomer_Click(object sender, EventArgs e)
        {
            this.Hide();
            objForm2.ShowDialog();

            if(null != objForm2 && objForm2.ItemAdded != string.Empty)
            comboBox1.Items.Add(objForm2.ItemAdded);

            this.Show();
        }

    }
}

//Form2.cs

//Form2.cs

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

namespace WindowsFormsApplication2
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        public string ItemAdded
        {
            get;
            set;
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            ItemAdded = txtCustomerName.Text;
            this.Close();
        }


    }
}

请参阅我的提示/技巧文章：< a href =http://www.codeproject.com/Tips/889332/Many-Questions-Answered-at-Once-Collaboration-betw>一次回答的许多问题 - Windows窗体或WPF Windows之间的协作 [ ^ ]。

-SA

Please see my Tips/Tricks article: Many Questions Answered at Once — Collaboration between Windows Forms or WPF Windows[^].

—SA

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