如何在另一个表单中的DatagridView中显示数据结果 [英] How to display data results in DatagridView in another Form

问题描述

Hi Fellows



如果单击一个按钮，我很难在另一个具有DataGridView的表单中显示我的数据信息



要在dgv中以相同的形式显示结果不是问题，但在dgv中以表格2显示它让我头疼（：



例如：

Form1

cmd.commandText：SELECT * FROM tblproducts



void btnDisplay_Click（object sender，EventArgs e）



if（comboBox1.SelectedValue.ToString（）！= null& & comboBox2.SelectedValue.ToString（）！= null）



试试

打开连接

新Form2 （）。显示对话（）;



??????下一个什么？





Form2



dataGridView1.DataSource =从Form1获取信息;



可以sb help或任何例子pleeaaaaseeee？

Hi Fellows

I'm having a tough time trying to display my data information in another form which has a DataGridView, if a button is clicked

To display the results in the same Form in dgv isn't a problem but to display it in Form 2 in a dgv is giving me a headache (:

Example:
Form1
cmd.commandText: SELECT * FROM tblproducts

void btnDisplay_Click(object sender, EventArgs e)

if (comboBox1.SelectedValue.ToString() != null && comboBox2.SelectedValue.ToString() != null)

try
open connection
new Form2().ShowDialog();

?????? what next??


Form2

dataGridView1.DataSource = get Info from Form1;

Can sb help or any examples pleeaaaaseeee?

推荐答案

为什么不穿你在项目中添加了一个静态类，在Form1中填充它，然后在保存对象列表的静态类中添加一个属性，然后将它绑定到Form2中的datagridview吗？

Why don't you add a static class to your project, populate this in Form1 then add a property to the static class holding your list of objects, then bind this to your datagridview in Form2??

基本思想是传递一些数据，任何数据。无论是在datagridview还是文本框中填充它都不重要。我从来没有真正使用过Windows窗体，但这肯定会给你一些想法。



尝试在表单之间传递数据



请记住，您可能需要填充大量数据第二种形式，但这并不意味着你必须从第一种形式发送所有这些。就像从数据库中获取记录一样，将主键从form1发送到form2，然后在form2中，使用该pkey获取所有记录。

希望这会有所帮助。



热烈的问候，

Subho

The basic idea is to pass some data, any data. Whether you populate that in a datagridview or a textbox shouldn't really matter. I have never really worked with windows forms but this will definitely give you some ideas.

Try Passing Data Between Forms

Keep in mind that you might need to populate a lot of data in the second form but that doesn't mean you have to send all that from the first form. Like if you are fetching records from a DB, send the primary key from form1 to form2 and in form2, fetch all the records using that pkey.
Hope this helps.

Warm regards,
Subho

好吧，只需在Form 2中添加第二个构造函数并从那里填充它......更容易

Ok just add a second constructor to Form 2 and populate it from there..... much easier

public partial class Form2 : Form
 {
     string _passValue;
     public string Passvalue
     {
         get { return _passValue; }
         set { _passValue = value; }
     }

     public Form2()
     {
         InitializeComponent();
     }

     public Form2(string Data)
     {
         _passValue = Data;
     }
 }

public partial class Form1 : Form
 {
     public Form1()
     {
         InitializeComponent();
         Form2 _form2 = new Form2(dataGridView1.DataSource);
         _form2.ShowDialog();

     }
 }

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