我想让我的 DataGrid 读取行 ID 并在新窗口中填充行值答案

【问题标题】：I would like to have my DataGrid read the row ID and populate row values in a new window我想让我的 DataGrid 读取行 ID 并在新窗口中填充行值
【发布时间】：2020-07-16 07:18:46
【问题描述】：

namespace CaseManagementSystem

{

public partial class DataGrid_HBD : UserControl
{

    public DataGrid_HBD()
    {
        InitializeComponent();

        // 2 Seconds Timer before connecting to the Database.
        // This improves UI rendering on button click
        DataGrid_Data();
    }

    /// <summary>
    /// Loading Data Grid
    /// </summary>
    public void DataGrid_Data()
    {
        // 2 second delay before loading DataGrid
        var timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(3) };
        timer.Start();
        timer.Tick += (sender, args) =>
        {
            timer.Stop();

            // Attemption to connect to SQL Server database and populate DataGrid with database tables. 
            try
            {
                string connectionString = ("Data Source=WINDOWS-B1AT5HC\\SQLEXPRESS;Initial Catalog=CustomerRelations;Integrated Security=True;");
                SqlConnection connection = new SqlConnection(connectionString);

                SqlCommand cmd = new SqlCommand("SELECT [hb_Disputes].[DSP_ID], [hb_disputes].[ACCOUNT], [hb_disputes].[CUST_NAME],[hb_disputes].[PREM_ADDR], [hb_status].[Status], [hb_disputes].[OPENED], [hb_disputes].[DEADLINE], [hb_rpttype].[ReportType], [hb_ratetype].[RateType] FROM [hb_disputes] LEFT JOIN [hb_status] ON [hb_disputes].[STATUS] = [hb_status].[STSID] LEFT JOIN [hb_rpttype] ON [hb_disputes].[RPTTYPE] = [hb_rpttype].[RPTID] LEFT JOIN [hb_ratetype] ON [hb_disputes].[REV_CLS] = [hb_ratetype].[RTID]", connection);
                connection.Open();
                DataTable dt = new DataTable();

                dt.Load(cmd.ExecuteReader());
                connection.Close();

                dtGrid.DataContext = dt;
            }
            catch
            {
                MessageBox.Show("Database connection is not available at this time. Please contact your database administrator ");
            }

        };
    }

    private void dtGrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
    {
        // User double clicks on DataGrid Row
        // Open new Window
        // Populate selected textboxes with selected datarow
        DataGrid gd = (DataGrid)sender;
        DataRowView row_selected = gd.SelectedItem as DataRowView;
        var windowToOpen = new Window1();

        if(gd !=null )
        {
            windowToOpen.txt_RowRecrd.Text = row_selected["DSP_ID"].ToString();
            windowToOpen.txt_acctnumber.Text = row_selected["ACCOUNT"].ToString();
            windowToOpen.txt_custname.Text = row_selected["CUST_NAME"].ToString();
            windowToOpen.txt_address.Text = row_selected["PREM_ADDR"].ToString();
            windowToOpen.txt_opened.Text = row_selected["OPENED"].ToString();
            windowToOpen.txt_deadline.Text = row_selected["DEADLINE"].ToString();
            windowToOpen.txt_revcls.Text = row_selected["RateType"].ToString();
            windowToOpen.Show();
        }
        else
        {
            return;
        }
    }

目前，当用户双击 Datagrid 行时，我编写了一些代码，仅获取数据表中显示的列并将它们填充到相应的文本框中。

我希望在数据网格上获得有限的信息，并在用户双击文本框和组合框时显示整行数据。

我想我需要一些代码让我的“Windows1”读取 DSP_ID 并使用该行中的信息填充相应的文本框和组合框。

【问题讨论】：

标签： c# sql sql-server wpf datagrid

【解决方案1】：

即使数据网格未显示特定列，数据仍可通过 DataRowView 从基础行（DataRowView 类具有提供基础 DataRow 的 .Row）获得。如果您想在dt 中添加更多数据，请将列添加到选择查询中。如果您希望在网格中显示更少的数据，请剔除网格显示的列。将网格行的 DataRowView 传递给打开的新窗口，文本框可以提取额外的信息，即使它在网格中不可见。

【讨论】：