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using System; using System.Collections.Generic; using System.Diagnostics; using System.Globalization; using System.IO; using System.Linq; using System.Reflection; using System.Runtime.CompilerServices; using System.Security; using System.Text; using System.Threading.Tasks; using Microsoft.VisualBasic; using Newtonsoft.Json; using System.Windows.Controls.Primitives; using System.Windows.Controls; using System.Windows; using System.Windows.Input; using System.ComponentModel; namespace APS.Synergy.Client.Framework.Infrastructure.DataGridExtender { public class DataGridExtender : DataGrid { public DataGridExtender() { this.ColumnReordered += DataGridControl_ColumnReordered; //Cannot use layoutupdated for saving as it will save before datagrid is loaded //this.LayoutUpdated += DataGridControl_LayoutUpdated; //this.AutoGeneratedColumns += DataGridControl_AutoGenerateColumns; this.Loaded += DataGridControl_Loaded; } private void DataGridControl_Loaded(object sender, RoutedEventArgs e) { var lcolumnList = ReadColumnsFromDisk(); try { if (lcolumnList != null && lcolumnList.Count > 0) { foreach (var column in lcolumnList) { //var litem = lcolumnList.FirstOrDefault(x => x.Header == GetColumnIdentifier(column)); var litem = this.Columns.FirstOrDefault(x => GetColumnIdentifier(x).Equals(column.Header)); if (column.ColumnWidth > 0) { litem.Width = new DataGridLength(column.ColumnWidth, DataGridLengthUnitType.Pixel); } if (litem != null) { //find display index and put it at the end. Let datagridcolum sort do its thing and itll push up all the way to missing columndisplayindex //Need to do it this way otherwise if the displayindex exists in another item it does weird stuff this.Columns.FirstOrDefault(x => x.DisplayIndex == litem.DisplayIndex).DisplayIndex = this.Columns.Count - 1; } } } //Column resize event doesnt exist so need to set one PropertyDescriptor pd = DependencyPropertyDescriptor.FromProperty(DataGridColumn.ActualWidthProperty, typeof(DataGridColumn)); //add event to each column foreach (DataGridColumn column in this.Columns) { //Add a listener for this column's width pd.AddValueChanged(column, new EventHandler(ColumnWidthPropertyChanged)); } } catch (Exception ex) { Debug.WriteLine(String.Format("DATAGRIDEXTENDER: [Loaded] Error reloading the column layout for grid {0}: {1}", (String.IsNullOrWhiteSpace(this.ControlName) ? this.ControlName : this.DataContext.ToString()), ex.GetBaseException().Message)); Debug.WriteLine(ex.ToString()); } } public static readonly DependencyProperty ControlNameProperty = DependencyProperty.Register("ControlName", typeof(string), typeof(DataGridExtender)); public string ControlName { get { return System.Convert.ToString(GetValue(ControlNameProperty)); } set { SetValue(ControlNameProperty, value); } } private void DataGridControl_Unloaded(object sender, RoutedEventArgs e) { SaveColumnLayout(); } private void DataGridControl_AutoGenerateColumns(object sender, EventArgs e) { var lcolumnList = ReadColumnsFromDisk(); try { if (lcolumnList != null && lcolumnList.Count > 0) { foreach (var column in this.Columns) { var litem = lcolumnList.FirstOrDefault(x => x.Header.Replace(" ", "") == GetColumnIdentifier(column).Replace(" ", "")); if (litem != null) { column.DisplayIndex = litem.DisplayIndex; column.Width = (litem.ColumnWidth > 0) ? new DataGridLength(litem.ColumnWidth) : Double.NaN; } } } } catch (Exception ex) { Debug.WriteLine(String.Format("DATAGRIDEXTENDER: [AutoGenerateColumns] Error reloading the column layout for grid {0}: {1}", (String.IsNullOrWhiteSpace(this.ControlName) ? this.ControlName : this.DataContext.ToString()), ex.GetBaseException().Message)); Debug.WriteLine(ex.ToString()); } } private string GetColumnIdentifier(DataGridColumn column) { // If the column has am x:Name set, then use that is the // identifer, otherwise try the header, otherwise make something up if (column is DataGridTextColumnExtender && !String.IsNullOrWhiteSpace(((DataGridTextColumnExtender)column).ColumnName)) { return ((DataGridTextColumnExtender)column).ColumnName; } if (column is DataGridTemplateColumnExtender && !String.IsNullOrWhiteSpace(((DataGridTemplateColumnExtender)column).ColumnName)) { return ((DataGridTemplateColumnExtender)column).ColumnName; } if (column is DataGridCheckBoxColumnExtender && !String.IsNullOrWhiteSpace(((DataGridCheckBoxColumnExtender)column).ColumnName)) { return ((DataGridCheckBoxColumnExtender)column).ColumnName; } if (column is DataGridComboBoxColumnExtender && !String.IsNullOrWhiteSpace(((DataGridComboBoxColumnExtender)column).ColumnName)) { return ((DataGridComboBoxColumnExtender)column).ColumnName; } if (column is DataGridHyperlinkColumnExtender && !String.IsNullOrWhiteSpace(((DataGridHyperlinkColumnExtender)column).ColumnName)) { return ((DataGridHyperlinkColumnExtender)column).ColumnName; } if (column.Header != null && !String.IsNullOrWhiteSpace(column.Header.ToString())) { return column.Header.ToString(); } return "column_" + this.Columns.IndexOf(column); // Everything has failed so we need to try and use something else } private void DataGridControl_ColumnReordered(object sender, DataGridColumnEventArgs e) { SaveColumnLayout(); } private void DataGridControl_LayoutUpdated(object sender, EventArgs e) { SaveColumnLayout(); } private void SaveColumnLayout() { List<ColumnItem> lColumnList = new List<ColumnItem>(); ColumnItem lColumnItem; foreach (var column in this.Columns) { lColumnItem = new ColumnItem() { DisplayIndex = column.DisplayIndex, Header = GetColumnIdentifier(column), ColumnWidth = column.Width.DesiredValue }; lColumnList.Add(lColumnItem); } lColumnList = lColumnList.OrderBy(x => x.DisplayIndex).ToList(); WriteColumnsToDisk(lColumnList); } private void WriteColumnsToDisk(List<ColumnItem> columnList) { string file = string.Empty; try { file = GetDataGridFileName(); var path = System.IO.Path.GetDirectoryName(file); if (!System.IO.Directory.Exists(path)) System.IO.Directory.CreateDirectory(path); var contents = Newtonsoft.Json.JsonConvert.SerializeObject(columnList); System.IO.File.WriteAllText(GetDataGridFileName(), contents); } catch (Exception ex) { Debug.WriteLine("Failed to save datagrid columns to {0} : {1}", file, ex.GetBaseException().Message); Debug.WriteLine(ex.ToString()); } } private List<ColumnItem> ReadColumnsFromDisk() { string file = string.Empty; try { file = GetDataGridFileName(); if (System.IO.File.Exists(file)) { var contents = System.IO.File.ReadAllText(file); if (!string.IsNullOrWhiteSpace(contents)) { List<ColumnItem> columnList; columnList = Newtonsoft.Json.JsonConvert.DeserializeObject<List<ColumnItem>>(contents); return columnList; } } } catch (Exception ex) { Debug.WriteLine("Failed to read datagrid columns to {0} : {1}", file, ex.GetBaseException().Message); Debug.WriteLine(ex.ToString()); } return null; } private string GetDataGridFileName() { if (String.IsNullOrEmpty(this.ControlName)) { return System.IO.Path.Combine(System.Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "APS", "Synergy3", "Client", "Settings", this.DataContext.ToString() + "_datagrid.json"); } return System.IO.Path.Combine(System.Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "APS", "Synergy3", "Client", "Settings", this.ControlName + "_datagrid.json"); } //column width change for mouse click stuff private bool _columnWidthChanging; private void ColumnWidthPropertyChanged(object sender, EventArgs e) { // listen for when the mouse is released _columnWidthChanging = true; if (sender != null) Mouse.AddPreviewMouseUpHandler(this, BaseDataGrid_MouseLeftButtonUp); } void BaseDataGrid_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { if (_columnWidthChanging) { _columnWidthChanging = false; SaveColumnLayout(); } } } public class ColumnItem { public int DisplayIndex { get; set; } public string Header { get; set; } public double ColumnWidth { get; set; } } public class DataGridTextColumnExtender : DataGridTextColumn { public static readonly DependencyProperty ColumnNameProperty = DependencyProperty.Register("ColumnName", typeof(string), typeof(DataGridTextColumnExtender)); public string ColumnName { get { return System.Convert.ToString(GetValue(ColumnNameProperty)); } set { SetValue(ColumnNameProperty, value); } } } public class DataGridTemplateColumnExtender : DataGridTemplateColumn { public static readonly DependencyProperty ColumnNameProperty = DependencyProperty.Register("ColumnName", typeof(string), typeof(DataGridTemplateColumnExtender)); public string ColumnName { get { return System.Convert.ToString(GetValue(ColumnNameProperty)); } set { SetValue(ColumnNameProperty, value); } } } public class DataGridComboBoxColumnExtender : DataGridComboBoxColumn { public static readonly DependencyProperty ColumnNameProperty = DependencyProperty.Register("ColumnName", typeof(string), typeof(DataGridComboBoxColumnExtender)); public string ColumnName { get { return System.Convert.ToString(GetValue(ColumnNameProperty)); } set { SetValue(ColumnNameProperty, value); } } } public class DataGridCheckBoxColumnExtender : DataGridCheckBoxColumn { public static readonly DependencyProperty ColumnNameProperty = DependencyProperty.Register("ColumnName", typeof(string), typeof(DataGridCheckBoxColumnExtender)); public string ColumnName { get { return System.Convert.ToString(GetValue(ColumnNameProperty)); } set { SetValue(ColumnNameProperty, value); } } } public class DataGridHyperlinkColumnExtender : DataGridHyperlinkColumn { public static readonly DependencyProperty ColumnNameProperty = DependencyProperty.Register("ColumnName", typeof(string), typeof(DataGridHyperlinkColumnExtender)); public string ColumnName { get { return System.Convert.ToString(GetValue(ColumnNameProperty)); } set { SetValue(ColumnNameProperty, value); } } } } |