C＃選択したDataGridview行の値をあるフォームから別のフォームのDataGridviewの行にコピーするにはどうすればよいですか？

Question

グリッドビューのデータを取得するために、html agility packを使用しています。列ボタンを使用して行をコピーして、別のフォーム上の空白のグリッド表示に送信するだけです。データバインディングやSQLはありません。グリッドにデータを入力した後、列のボタンを押さずにデータグリッドビュー全体が表示されます。私が持っているコードは次のとおりです。1

private void LeadsDataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e) 
{ 
    Database DB = new Database(LeadsDataGridView.DataSource); 

    var senderGrid = (DataGridView)sender; 

    if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn && e.RowIndex >= 0) 
    { 
     DB.Row = LeadsDataGridView.CurrentRow; 
    } 

    Search_Table.AcceptChanges(); 

    LeadsDataGridView.DataSource = Search_Table; 
} 

フォーム2

public Database(object DataSource) 
{ 
    InitializeComponent(); 
    InitDBTable(); 
    DB_GridView.DataSource = DataSource; 
} 

Answer 1

フォームはここでうまくいけば、あなたの方法であなたを取得する最小限の例です。

MainWindow.xaml

<Window x:Class="PassingValuesFromFormToForm_45425412.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
     xmlns:local="clr-namespace:PassingValuesFromFormToForm_45425412" 
     mc:Ignorable="d" 
     Title="MainWindow" Height="350" Width="525"> 
    <Grid> 
     <DataGrid x:Name="dataGrid" HorizontalAlignment="Left" Margin="61,60,0,0" VerticalAlignment="Top" Width="259"/> 
     <Button x:Name="button" Content="Button" HorizontalAlignment="Left" Margin="29,13,0,0" VerticalAlignment="Top" Width="75" Click="button_Click"/> 
    </Grid> 
</Window> 

MainWindow.xaml.cs

using System.Collections.Generic; 
using System.Windows; 

namespace PassingValuesFromFormToForm_45425412 
{ 
    /// <summary> 
    /// Interaction logic for MainWindow.xaml 
    /// </summary> 
    public partial class MainWindow : Window 
    { 
     List<dgvEntry> dgvList = new List<dgvEntry>(); 
     public MainWindow() 
     { 
      InitializeComponent(); 
      dgvList.Add(new PassingValuesFromFormToForm_45425412.dgvEntry { col1 = "blah blah", col2 = "blehbleh" }); 
      dataGrid.AutoGenerateColumns = true; 
      dataGrid.ItemsSource = dgvList; 
     } 

     private void button_Click(object sender, RoutedEventArgs e) 
     { 
      Window1 win1 = new Window1((dgvEntry)dataGrid.Items[0]); 
      win1.Show(); 
     } 
    } 

    public class dgvEntry { 
     public string col1 { get; set; } 
     public string col2 { get; set; } 
    } 
} 

Window1.xaml

<Window x:Class="PassingValuesFromFormToForm_45425412.Window1" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
     xmlns:local="clr-namespace:PassingValuesFromFormToForm_45425412" 
     mc:Ignorable="d" 
     Title="Window1" Height="300" Width="300"> 
    <Grid> 
     <DataGrid x:Name="dataGrid" HorizontalAlignment="Left" Margin="23,39,0,0" VerticalAlignment="Top" Width="181"/> 

    </Grid> 
</Window> 

Window1.xaml.cs

using System.Collections.Generic; 
using System.Windows; 

namespace PassingValuesFromFormToForm_45425412 
{ 
    /// <summary> 
    /// Interaction logic for Window1.xaml 
    /// </summary> 
    public partial class Window1 : Window 
    { 
     public Window1() 
     { 
      InitializeComponent(); 
     } 

     public Window1(dgvEntry incomingItem) 
     { 
      InitializeComponent(); 
      dataGrid.AutoGenerateColumns = true; 
      dataGrid.ItemsSource = new List<dgvEntry> { incomingItem }; 
     } 
    } 
} 

ここにWinFormsのアップデートがあります。この場合も、これは最小限の例です。このサンプルの目的では、私はフォームデザイナーで何もしませんでした。 すべてはコードの後ろで行われます。

のForm1.cs

using System.ComponentModel; 
using System.Drawing; 
using System.Windows.Forms; 

namespace WindowsFormsApplication2 
{ 
    public partial class Form1 : Form 
    { 

     DataGridView dgv = new DataGridView(); 
     BindingList<dgvitem> itemsList = new BindingList<dgvitem>(); 
     bool SendAsRow = true;//just a variable to trigger the proper method in 'Dgv_CellContentClick' 
     Button independantButton = new Button(); 

     public Form1() 
     { 
      InitializeComponent(); 
      InitializeTheDGV(); 
      AddTheButton(); 
      itemsList.Add(new dgvitem { JustaTextField = "aksldjf sadfjasifuqw adsfasf" }); 
      itemsList.Add(new dgvitem { JustaTextField = "qwerioqu aisdfnvmz, oaa"}); 
     } 

     private void InitializeTheDGV() 
     { 
      dgv.Location = new Point(this.Location.X + 5, this.Location.Y + 5); 
      dgv.DataSource = itemsList; 
      dgv.AutoGenerateColumns = false; 
      this.Controls.Add(dgv); 
      dgv.Columns.Add(new DataGridViewTextBoxColumn() { HeaderText = "My col header", Name="mycol1" }); 
      dgv.Columns.Add(new DataGridViewButtonColumn() { HeaderText = "click in this column", Name = "mycol2" }); 
      dgv.Columns["mycol1"].DataPropertyName = "JustaTextField"; 
      dgv.CellContentClick += Dgv_CellContentClick; 
     } 

     private void Dgv_CellContentClick(object sender, DataGridViewCellEventArgs e) 
     { 
      if (!(sender is DataGridView)) 
      { 
       return; 
      } 

      /* 
      * Experiment and Pick your poison 
      */ 
      if (SendAsRow) 
      { 
       Form2 f2r = new Form2(dgv.Rows[e.RowIndex]); 
       f2r.Show(); 
      } 
      else 
      { 
       Form2 f2 = new Form2((string)dgv.Rows[e.RowIndex].Cells[0].FormattedValue); 
       f2.Show(); 
      } 
      /**/ 
     } 


     private void AddTheButton() 
     { 
      independantButton.Location = new Point(this.Location.X + 5, this.Location.Y + dgv2.Height + 15); 
      independantButton.Click += IndependantButton_Click; 
      this.Controls.Add(independantButton); 
     } 

     private void IndependantButton_Click(object sender, System.EventArgs e) 
     { 
      /* 
      * Experiment and Pick your poison 
      */ 
      if (SendAsRow) 
      { 
       Form2 f2r = new Form2(dgv.SelectedRows[0]); 
       f2r.Show(); 
      } 
      else 
      { 
       Form2 f2 = new Form2((string)dgv.SelectedRows[0].Cells[0].FormattedValue); 
       f2.Show(); 
      } 
      /**/ 

     } 
    } 


    public class dgvitem 
    { 
     public string JustaTextField { get; set; } 
    } 
} 

にForm2.cs

using System.ComponentModel; 
using System.Drawing; 
using System.Windows.Forms; 

namespace WindowsFormsApplication2 
{ 
    public partial class Form2 : Form 
    { 
     DataGridView dgv2 = new DataGridView(); 
     BindingList<dgv2item> dgv2list = new BindingList<dgv2item>(); 

     //this is the 'default' constructor which takes no argument 
     public Form2() 
     { 
      InitializeComponent(); 
      MakeTheGrid(); 
     } 

     //this form constructor takes a String parameter so you can pass only a string 
     public Form2(string incomingText) 
     { 
      InitializeComponent(); 
      MakeTheGrid(); 
      dgv2list.Add(new dgv2item { coolBeans = incomingText });//add the incoming String to the itemList, which will in-turn update the DataGridView 
     } 


     //this form constructor takes a DataGridViewRow parameter so you can pass the whole row 
     public Form2(DataGridViewRow incomingRow) 
     { 
      InitializeComponent(); 
      MakeTheGrid(); 
      dgv2list.Add(new dgv2item { coolBeans = (string)incomingRow.Cells[0].FormattedValue});//add the value of the cell you want out of the row to the itemlist, which will in-turn update the DataGridView 
     } 


     private void MakeTheGrid() 
     { 
      dgv2.Location = new Point(this.Location.X + 15, this.Location.Y + 15);//it has to go somewhere... 
      dgv2.AutoGenerateColumns = true; 
      dgv2.DataSource = dgv2list;//define where to find the data 
      this.Controls.Add(dgv2);//add it to the form 
     } 
    } 


    public class dgv2item 
    { 
     public string coolBeans { get; set; } 
    } 
}