Question

我使用html agility pack来获取网格视图的数据。我只想使用列按钮复制一行，将其发送到另一个表单上的空白网格视图。没有数据绑定或SQL。填充网格后，我无需按下列按钮即可获得整个数据网格视图。我的代码是：

表格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;
}

表格2

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

Answer 1

这是一个最小的例子，希望能帮助你。

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 };
        }
    }
}

这是WinForms的更新。同样，这是一个最小的例子。出于此示例的目的，我在表单设计器中没有做任何事情。一切都是通过代码完成的。

<强> Form1.cs的

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; }
    }
}

<强> 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; }
    }
}

C＃如何将选定的datagridview行的值从一个表单复制到另一个表单上的datagridview的行？

1 个答案: