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utilisateur créer un contrôle de grille personnalisée en étendant le DataGridView dans Windows Forms application. J'utilise des fonctions personnalisées pour définir la colonne readonly et d'autres fonctionnalités. Mon problème actuel est lorsque j'utilise plusieurs contrôles sous la même forme, il reflète seulement la sortie d'exécution de fonction pour le dernier contrôle seulement. Comment rendre chaque contrôle une instance distincte du contrôle utilisateur?C# Windows Forms contrôle
public partial class dGridView : DataGridView
{
#region Member variables
DatagridViewCheckBoxHeaderCell chkHeader;
bool NeedToPopulateColumns = true;
public event DatagridViewCellButtonClickedHandler CellButtonClicked;
private int currentComboSelIndex;
#endregion
public dGridView()
{
InitializeComponent();
if (!DesignMode)
{
this.DoubleBuffered = true;
this.AutoGenerateColumns = false;
this.CellButtonClicked += new DatagridViewCellButtonClickedHandler(dGridView_CellButtonClicked);
}
}
#region Properties
/// <summary>
/// Gets or sets the datasource used to define columns.
/// </summary>
public object DesignDataSource
{
get;
set;
}
[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public bool ExtendLastColumn
{
get;
set;
}
private List<string> AutoFilterColumnNames
{
get;
set;
}
private List<string> HiddenColumnsList
{
get;
set;
}
private List<string> ReadOnlyColumnsList
{
get;
set;
}
private List<string> ButtonColumnsList
{
get;
set;
}
private List<DGVSupportClass.ComboBoxColumns> ComboBoxColumnsList
{
get;
set;
}
private List<CustomCaptions> customCaptionList
{
get;
set;
}
#endregion
#region Methods
#region Public Methods
public void AddFilterToColumns(List<string> columnNames)
{
if (columnNames.Count > 0)
{
this.AutoFilterColumnNames = columnNames;
}
}
public void HiddenColumns(List<string> columnNames)
{
if (columnNames.Count > 0)
{
this.HiddenColumnsList = columnNames;
HideColumnsInList(this.HiddenColumnsList);
}
}
public void ReadOnlyColumns(List<string> columnNames)
{
if (columnNames.Count > 0)
{
this.ReadOnlyColumnsList = columnNames;
ReadOnlyColumnsInList(this.ReadOnlyColumnsList);
}
}
public void ReadOnlyRow(int rowIndex)
{
if (this.DataSource == null)
{
return;
}
this.Rows[rowIndex].ReadOnly = true;
}
public void AddButtonToCells(List<string> columnNames)
{
this.ButtonColumnsList = columnNames;
NeedToPopulateColumns = true;
FindBindingDataObjectType();
}
public void AddComboBoxColumn(List<DGVSupportClass.ComboBoxColumns> comboBoxColumns)
{
this.ComboBoxColumnsList = comboBoxColumns;
NeedToPopulateColumns = true;
FindBindingDataObjectType();
}
public void SetCustomDataSourceToComboBoxCell(int colIndex, int rowIndex, object cboxDataSource, string displayMember, string valueMember)
{
if (this.Columns[colIndex].GetType() != typeof(DataGridViewComboBoxColumn))
{
throw new Exception(string.Format("Column [{0}] is not a DataGridViewComboBoxColumn", colIndex));
}
if (string.IsNullOrEmpty(displayMember) || string.IsNullOrEmpty(valueMember))
{
throw new Exception("Display and Value Member must be passed");
}
DataGridViewComboBoxCell combo = this[colIndex, rowIndex] as DataGridViewComboBoxCell;
combo.DataSource = cboxDataSource;
combo.DisplayMember = displayMember;
combo.ValueMember = valueMember;
}
public void SetCustomDataSourceToComboBoxCell(int colIndex, int rowIndex, string[] cboxDataSource)
{
if (this.Columns[colIndex].GetType() != typeof(DataGridViewComboBoxColumn))
{
throw new Exception(string.Format("Column [{0}] is not a DataGridViewComboBoxColumn", colIndex));
}
DataGridViewComboBoxCell combo = this[colIndex, rowIndex] as DataGridViewComboBoxCell;
combo.DataSource = cboxDataSource;
}
public void CustomColumnCaptions(List<CustomCaptions> newColumnCaptions)
{
if (newColumnCaptions == null || newColumnCaptions.GetType() == typeof(System.DBNull))
{
return;
}
if (this.customCaptionList != newColumnCaptions)
this.customCaptionList = newColumnCaptions;
foreach (CustomCaptions col in newColumnCaptions)
{
if (this.Columns[col.ColumnName] != null)
this.Columns[col.ColumnName].HeaderCell.Value = col.ColumnCaption;
}
}
public void SetCustomColumnCaption(string columnName, string newCaption)
{
if (this.Columns.Contains(columnName))
{
if (this.Columns[columnName] != null)
this.Columns[columnName].HeaderCell.Value = newCaption;
}
CustomCaptions cap = new CustomCaptions(columnName, newCaption);
if (!customCaptionList.Contains(cap))
{
customCaptionList.Add(cap);
}
}
#endregion
#region Private Methods
private void AddFilterToColumnsInList(List<string> columnNames)
{
if (this.DataSource == null || columnNames == null)
{
return;
}
foreach (DataGridViewColumn col in this.Columns)
{
if (col.GetType() == typeof(DataGridViewTextBoxColumn) && columnNames.Contains(col.Name))
col.HeaderCell = new
DataGridViewAutoFilter.DataGridViewAutoFilterColumnHeaderCell(col.HeaderCell);
}
}
private void HideColumnsInList(List<string> columnNames)
{
if (this.DataSource == null || columnNames == null)
{
return;
}
foreach (DataGridViewColumn col in this.Columns)
{
if (this.HiddenColumnsList.Contains(col.Name))
{
col.Visible = false;
}
}
}
/// <summary>
/// Finds the type of the binding data object.
/// </summary>
private void FindBindingDataObjectType()
{
this.SuspendLayout();
this.ScrollBars = ScrollBars.None;
if (NeedToPopulateColumns)
{
if (this.DataSource is System.Collections.IList && this.DataSource.GetType().IsGenericType)
{
PopulateDataGridColumnsFromICartItem();
}
else
{
PopulateDataGridColumnsFromDataView();
}
NeedToPopulateColumns = false;
if (this.customCaptionList != null && this.customCaptionList.GetType() != typeof(System.DBNull))
{
CustomColumnCaptions(this.customCaptionList);
}
}
this.ScrollBars = ScrollBars.Both;
this.ResumeLayout();
}
/// <summary>
/// Populates the DataGridView columns with controls according to the
/// DataType of each columns which it represents. e.g. when a boolean
/// value found, then a DataGridViewCheckBoxColumn will be added and
/// for datetime it will be ESCalendarColumn (a custom control).
/// </summary>
private void PopulateDataGridColumnsFromDataView()
{
bool isComboAdded = false;
DataTable dt = null;
if (null == this.DataSource)
{
return;
}
else
{
switch (this.DataSource.GetType().ToString())
{
case "System.Data.DataTable":
dt = (DataTable)this.DataSource;
break;
case "System.Data.DataView":
dt = ((DataView)this.DataSource).Table;
break;
case "System.Data.DataSet":
dt = ((DataSet)this.DataSource).Tables[0];
break;
case "System.Windows.Forms.BindingSource":
if (((BindingSource)this.DataSource).DataSource.GetType() == typeof(DataTable))
{
dt = (DataTable)((BindingSource)this.DataSource).DataSource;
}
break;
default:
return;
}
}
this.Columns.Clear();
foreach (DataColumn dc in dt.Columns)
{
if (ButtonColumnsList != null && ButtonColumnsList.Contains(dc.ColumnName))
{
DataGridViewButtonColumn dvButton = new DataGridViewButtonColumn();
dvButton.Name = dc.ColumnName;
dvButton.HeaderText = dc.ColumnName;
this.Columns.Add(dvButton);
this.Columns[dvButton.Name].DataPropertyName = dvButton.Name;
continue;
}
if (ComboBoxColumnsList != null && ComboBoxColumnsList.Count > 0)
{
foreach (DGVSupportClass.ComboBoxColumns tmpData in ComboBoxColumnsList)
{
if (tmpData.ColumnName == dc.ColumnName)
{
DataGridViewComboBoxColumn comboCol = new DataGridViewComboBoxColumn();
comboCol.DataPropertyName = dc.ColumnName;
comboCol.Name = dc.ColumnName;
comboCol.HeaderText = dc.ColumnName;
comboCol.DataSource = tmpData.DataSource;
if (!string.IsNullOrEmpty(tmpData.Display))
{
comboCol.DisplayMember = tmpData.Display;
comboCol.ValueMember = tmpData.Value;
}
comboCol.DisplayStyle = DataGridViewComboBoxDisplayStyle.DropDownButton;
comboCol.FlatStyle = FlatStyle.Standard;
this.Columns.Add(comboCol);
isComboAdded = true;
break;
}
}
}
if (isComboAdded)
{
isComboAdded = false;
continue;
}
switch (((DataColumn)dc).DataType.ToString())
{
case "System.String":
case "System.Int32":
case "System.Int64":
case "System.Decimal":
case "System.Guid":
this.Columns.Add(dc.ColumnName, dc.Caption);
this.Columns[dc.ColumnName].DataPropertyName = dc.ColumnName;
this.Columns[dc.ColumnName].SortMode = DataGridViewColumnSortMode.Automatic;
break;
case "System.Boolean":
DataGridViewCheckBoxColumn chkbox = new DataGridViewCheckBoxColumn();
chkHeader = new DatagridViewCheckBoxHeaderCell();
chkbox.HeaderCell = chkHeader;
chkbox.Name = "chkBox" + dc.ColumnName;
chkbox.HeaderText = dc.ColumnName;
chkHeader.OnCheckBoxClicked += new CheckBoxClickedHandler(chkHeader_OnCheckBoxClicked);
this.Columns.Add(chkbox);
this.Columns[chkbox.Name].DataPropertyName = dc.ColumnName;
this.Columns[chkbox.Name].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
this.Columns[chkbox.Name].SortMode = DataGridViewColumnSortMode.NotSortable;
break;
case "System.DateTime":
ESCalendarColumn calendarCol = new ESCalendarColumn();
calendarCol.Name = ((DataColumn)dc).ColumnName;
calendarCol.HeaderText = ((DataColumn)dc).Caption;
this.Columns.Add(calendarCol);
this.Columns[calendarCol.Name].DataPropertyName = calendarCol.Name;
this.Columns[calendarCol.Name].SortMode = DataGridViewColumnSortMode.Automatic;
break;
default:
if (((DataColumn)dc).DataType.IsEnum)
{
List<DGVSupportClass.EnumToComboClass> lstCbo = new List<DGVSupportClass.EnumToComboClass>();
DataGridViewComboBoxColumn comboCol = new DataGridViewComboBoxColumn();
comboCol.DataPropertyName = ((DataColumn)dc).ColumnName;
comboCol.Name = ((DataColumn)dc).ColumnName;
comboCol.HeaderText = ((DataColumn)dc).Caption;
comboCol.DataSource = Enum.GetValues(dc.DataType);
comboCol.FlatStyle = FlatStyle.Standard;
if (((DataColumn)dc).ReadOnly) comboCol.ReadOnly = true;
this.Columns.Add(comboCol);
}
else
{
this.Columns.Add(dc.ColumnName, dc.Caption);
this.Columns[dc.ColumnName].DataPropertyName = dc.ColumnName;
this.Columns[dc.ColumnName].SortMode = DataGridViewColumnSortMode.Automatic;
}
break;
}
}
NeedToPopulateColumns = false;
AddFilterToColumnsInList(this.AutoFilterColumnNames);
HideColumnsInList(this.HiddenColumnsList);
// Extend the last column
if (this.ExtendLastColumn)
{
this.Columns[this.Columns.Count - 1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
}
}
/// <summary>
/// Populates the DataGridView columns with controls according to the
/// DataType of each columns which it represents. e.g. when a boolean
/// value found, then a DataGridViewCheckBoxColumn will be added and
/// for datetime it will be ESCalendarColumn (a custom control).
/// </summary>
private void PopulateDataGridColumnsFromICartItem()
{
this.Columns.Clear();
System.Reflection.PropertyInfo[] propertyInfos = null;
bool isComboAdded = false;
if (this.DesignDataSource != null)
{
if (this.DesignDataSource != null && this.DesignDataSource is System.Collections.IList && this.DesignDataSource.GetType().IsGenericType)
{
if (((System.Collections.IList)this.DesignDataSource).Count > 0 && (((System.Collections.IList)this.DesignDataSource)[0]) != null)
{
propertyInfos = (((System.Collections.IList)this.DesignDataSource)[0]).GetType().GetProperties();
}
else
{
propertyInfos = this.DesignDataSource.GetType().GetProperties();
propertyInfos = propertyInfos[propertyInfos.Length - 1].PropertyType.GetProperties();
}
}
}
else
{
if (this.DataSource != null && this.DataSource is System.Collections.IList && this.DataSource.GetType().IsGenericType)
{
if (((System.Collections.IList)this.DataSource).Count > 0)
{
propertyInfos = (((System.Collections.IList)this.DataSource)[0]).GetType().GetProperties();
}
else
{
propertyInfos = this.DataSource.GetType().GetProperties();
propertyInfos = propertyInfos[propertyInfos.Length - 1].PropertyType.GetProperties();
}
}
}
if (propertyInfos != null)
{
foreach (var item in propertyInfos)
{
if (ComboBoxColumnsList != null && ComboBoxColumnsList.Count > 0)
{
foreach (DGVSupportClass.ComboBoxColumns tmpData in ComboBoxColumnsList)
{
if (tmpData.ColumnName == item.Name)
{
DataGridViewComboBoxColumn comboCol = new DataGridViewComboBoxColumn();
comboCol.DataPropertyName = item.Name;
comboCol.Name = item.Name;
comboCol.HeaderText = item.Name;
comboCol.DataSource = tmpData.DataSource;
if (!string.IsNullOrEmpty(tmpData.Display))
{
comboCol.DisplayMember = tmpData.Display;
comboCol.ValueMember = tmpData.Value;
}
comboCol.DisplayStyle = DataGridViewComboBoxDisplayStyle.DropDownButton;
comboCol.FlatStyle = FlatStyle.Standard;
this.Columns.Add(comboCol);
isComboAdded = true;
break;
}
}
}
if (isComboAdded)
{
isComboAdded = false;
continue;
}
if (ButtonColumnsList != null && ButtonColumnsList.Contains(item.Name))
{
DataGridViewButtonColumn dvButton = new DataGridViewButtonColumn();
dvButton.Name = item.Name;
dvButton.HeaderText = item.Name;
this.Columns.Add(dvButton);
this.Columns[dvButton.Name].DataPropertyName = dvButton.Name;
}
else
{
switch (item.PropertyType.ToString())
{
case "System.String":
case "System.Int32":
case "System.Int64":
case "System.Decimal":
case "System.Guid":
DataGridViewTextBoxColumn txtBox = new DataGridViewTextBoxColumn();
txtBox.Name = item.Name;
this.Columns.Add(txtBox);
this.Columns[item.Name].DataPropertyName = item.Name;
break;
case "System.Boolean":
DataGridViewCheckBoxColumn chkbox = new DataGridViewCheckBoxColumn();
chkHeader = new DatagridViewCheckBoxHeaderCell();
chkbox.HeaderCell = chkHeader;
chkbox.Name = "chkBox" + item.Name;
chkbox.HeaderText = item.Name;
chkHeader.OnCheckBoxClicked += new CheckBoxClickedHandler(chkHeader_OnCheckBoxClicked);
this.Columns.Add(chkbox);
this.Columns[chkbox.Name].DataPropertyName = item.Name;
this.Columns[chkbox.Name].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
this.Columns[chkbox.Name].SortMode = DataGridViewColumnSortMode.NotSortable;
break;
case "System.DateTime":
ESCalendarColumn calendarCol = new ESCalendarColumn();
calendarCol.Name = item.Name;
calendarCol.HeaderText = item.Name;
this.Columns.Add(calendarCol);
this.Columns[calendarCol.Name].DataPropertyName = calendarCol.Name;
break;
default:
if (item.PropertyType.IsEnum && item.PropertyType.IsPublic)
{
List<DGVSupportClass.EnumToComboClass> lstCbo = new List<DGVSupportClass.EnumToComboClass>();
foreach (System.Reflection.FieldInfo fInfo in item.PropertyType.GetFields(
System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static))
{
lstCbo.Add(new DGVSupportClass.EnumToComboClass(fInfo.Name, fInfo.GetRawConstantValue().ToString()));
}
DataGridViewComboBoxColumn comboCol = new DataGridViewComboBoxColumn();
comboCol.DataPropertyName = item.Name;
comboCol.Name = item.Name;
comboCol.HeaderText = item.Name;
comboCol.DataSource = lstCbo;
comboCol.DisplayMember = "Display";
comboCol.ValueMember = "Value";
comboCol.FlatStyle = FlatStyle.Standard;
this.Columns.Add(comboCol);
}
else if (!item.PropertyType.IsAbstract)
{
DataGridViewTextBoxColumn txtBoxDefault = new DataGridViewTextBoxColumn();
txtBoxDefault.Name = item.Name;
txtBoxDefault.AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
this.Columns.Add(txtBoxDefault);
this.Columns[item.Name].DataPropertyName = item.Name;
}
break;
}
}
}
}
if (this.ExtendLastColumn)
{
this.Columns[this.Columns.Count - 1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
}
AddFilterToColumnsInList(this.AutoFilterColumnNames);
HideColumnsInList(this.HiddenColumnsList);
}
#endregion
#endregion
#region Events
protected override void OnDataSourceChanged(EventArgs e)
{
if (this.DesignDataSource == null)
{
this.DesignDataSource = this.DataSource;
NeedToPopulateColumns = true;
}
FindBindingDataObjectType();
base.OnDataSourceChanged(e);
}
protected override void OnCellContentClick(DataGridViewCellEventArgs e)
{
if (this.Columns[e.ColumnIndex].GetType() == typeof(DataGridViewButtonColumn))
{
DatagridViewCellButtonClickEventArgs dc = new DatagridViewCellButtonClickEventArgs(this.CurrentCell.Value.ToString(),
this.CurrentCell.Tag, this.CurrentCell.ColumnIndex, this.CurrentCell.RowIndex, this.CurrentCell.Value);
if (CellButtonClicked != null) { CellButtonClicked(this, dc); }
}
else if (this.Columns[e.ColumnIndex].GetType() == typeof(DataGridViewComboBoxColumn))
{
this.CurrentCell = this[e.ColumnIndex, e.RowIndex];
this.BeginEdit(false);
ComboBox comboBox = this.EditingControl as ComboBox;
if (comboBox != null)
{
comboBox.DroppedDown = true;
}
}
base.OnCellContentClick(e);
}
protected override void OnCellClick(DataGridViewCellEventArgs e)
{
if (this.Columns[e.ColumnIndex].GetType() == typeof(DataGridViewComboBoxColumn))
{
this.CurrentCell = this[e.ColumnIndex, e.RowIndex];
this.BeginEdit(false);
ComboBox comboBox = this.EditingControl as ComboBox;
if (comboBox != null)
{
comboBox.DroppedDown = true;
}
}
base.OnCellClick(e);
}
protected override void OnDataBindingComplete(DataGridViewBindingCompleteEventArgs e)
{
base.OnDataBindingComplete(e);
}
protected override void OnColumnHeaderMouseClick(DataGridViewCellMouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
List<ColumnSettingsClass> LCss = new List<ColumnSettingsClass>();
foreach (DataGridViewColumn col in this.Columns)
{
if (!HiddenColumnsList.Contains(col.Name))
{
LCss.Add(new ColumnSettingsClass(col.Name, col.HeaderText, col.Width, col.Index, col.Visible));
}
}
ColumnSettings frmCs = new ColumnSettings(ref LCss);
frmCs.ShowDialog(this);
foreach (ColumnSettingsClass item in LCss)
{
if (this.Columns.Contains(item.ColumnName))
{
this.Columns[item.ColumnName].DisplayIndex = item.ColumnOrdinal;
this.Columns[item.ColumnName].Width = item.ColumnWidth;
this.Columns[item.ColumnName].Visible = item.Visibility;
}
}
}
base.OnColumnHeaderMouseClick(e);
}
protected override void OnCurrentCellDirtyStateChanged(EventArgs e)
{
base.OnCurrentCellDirtyStateChanged(e);
this.CommitEdit(DataGridViewDataErrorContexts.Commit);
}
protected override void OnEditingControlShowing(DataGridViewEditingControlShowingEventArgs e)
{
if (e.Control is ComboBox)
{
ComboBox comboBox = e.Control as ComboBox;
comboBox.SelectedIndexChanged -= new EventHandler(LastColumnComboSelectionChanged);
comboBox.SelectedIndexChanged += new EventHandler(LastColumnComboSelectionChanged);
if (comboBox != null)
comboBox.DropDown += delegate(object s, EventArgs se) { ((ComboBox)s).BackColor = this.DefaultCellStyle.BackColor; };
}
base.OnEditingControlShowing(e);
}
private void LastColumnComboSelectionChanged(object sender, EventArgs e)
{
var currentcell = this.CurrentCellAddress;
var sendingCB = sender as DataGridViewComboBoxEditingControl;
if (sendingCB.EditingControlValueChanged)
{
DataGridViewTextBoxCell cel = (DataGridViewTextBoxCell)this.Rows[currentcell.Y].Cells[0];
cel.Value = sendingCB.EditingControlFormattedValue.ToString();
}
sendingCB.SelectedIndexChanged -= new EventHandler(LastColumnComboSelectionChanged);
}
#endregion
}
Pouvez-vous nous montrer le code ???? –
S'il vous plaît ajouter le code de votre contrôle et comment vous appelez/ajouter un contrôle pour former. –
Ce titre devrait être mis à jour pour décrire réellement le problème. Je – JohnSaps