Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / DynamicData / DynamicData / FilterRepeater.cs / 1305376 / FilterRepeater.cs
namespace System.Web.DynamicData {
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Linq;
using System.Security.Permissions;
using System.Web;
using System.Web.Compilation;
using System.Web.Resources;
using System.Web.UI;
using System.Web.UI.WebControls;
///
/// Repeater Control that enumerates over all the filterable columns in a table
///
[ToolboxItem(false)]
[ParseChildren(true)]
public class FilterRepeater : Repeater, IWhereParametersProvider {
private string _contextTypeName;
private string _dynamicFilterContainerId;
private List _filters = new List();
private MetaTable _table;
private string _tableName;
///
/// The context that the filtered table belongs to
///
[Category("Data"),
DefaultValue((string)null),
Themeable(false)]
//
public string ContextTypeName {
get {
return _contextTypeName ?? String.Empty;
}
set {
if (!ContextTypeName.Equals(value)) {
_contextTypeName = value;
_table = null;
}
}
}
///
/// ID of the filter control in the ItemTemplate. By default, it's "DynamicFilter".
///
[Category("Behavior"),
DefaultValue("DynamicFilter"),
Themeable(false),
IDReferenceProperty(typeof(FilterUserControlBase)),
ResourceDescription("DynamicFilterRepeater_DynamicFilterContainerId")]
public string DynamicFilterContainerId {
get {
if (String.IsNullOrEmpty(_dynamicFilterContainerId)) {
_dynamicFilterContainerId = "DynamicFilter";
}
return _dynamicFilterContainerId;
}
set {
_dynamicFilterContainerId = value;
}
}
///
/// Returns the table associated with this filter repeater.
///
public MetaTable Table {
get {
if (_table == null) {
_table = GetTable();
}
return _table;
}
}
///
/// Name of the table being filtered
///
[Category("Data"),
DefaultValue((string)null),
Themeable(false),
ResourceDescription("FilterRepeater_TableName")]
public string TableName {
get {
return _tableName ?? String.Empty;
}
set {
if (!TableName.Equals(value)) {
_tableName = value;
_table = null;
}
}
}
public override bool Visible {
get {
//
return base.Visible && _filters.Count > 0;
}
set {
base.Visible = value;
}
}
///
/// same as base.
///
public override void DataBind() {
// Start with an empty filters list when DataBinding. This is needed when DataBind()
// gets called multiple times.
_filters.Clear();
base.DataBind();
}
///
/// Returns an enumeration of the columns belonging to the table associated with
/// this filter repeater that are sortable (by default, foreign key and boolean columns)
/// that are scaffoldable
///
/// GetFilteredColumns() {
return Table.Columns.Where(c => IsFilterableColumn(c));
}
internal IEnumerable GetFilterControls() {
return _filters;
}
private MetaTable GetTable() {
if (!String.IsNullOrEmpty(ContextTypeName) || !String.IsNullOrEmpty(TableName)) {
// get table from control properties
string contextTypeName = ContextTypeName;
string tableName = TableName;
if (String.IsNullOrEmpty(ContextTypeName)) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_MissingContextTypeName,
ID));
} else if (String.IsNullOrEmpty(tableName)) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_MissingTableName,
ID));
}
Type contextType = null;
if (!String.IsNullOrEmpty(ContextTypeName)) {
try {
contextType = BuildManager.GetType(contextTypeName, /*throwOnError*/ true, /*ignoreCase*/ true);
} catch (Exception e) {
throw new InvalidOperationException(String.Format(
CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_InvalidContextTypeName,
ID,
contextTypeName), e);
}
}
MetaModel model;
try {
model = MetaModel.GetModel(contextType);
} catch (InvalidOperationException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_UnknownContextTypeName,
ID,
contextType.FullName), e);
}
try {
return model.GetTable(tableName);
} catch (ArgumentException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_InvalidTableName,
ID,
tableName), e);
}
} else {
MetaTable table = DynamicDataRouteHandler.GetRequestMetaTable(HttpContext.Current);
if (table == null) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_CantInferInformationFromUrl,
ID));
}
return table;
}
}
internal static bool IsFilterableColumn(MetaColumn column) {
if (!column.Scaffold) return false;
if (column.IsCustomProperty) return false;
if (column is MetaForeignKeyColumn) return true;
if (column.ColumnType == typeof(bool)) return true;
return false;
}
///
/// gets called for every item and alternating item template being instantiated by this
/// repeater during databinding
///
///
protected virtual void OnFilterItemCreated(RepeaterItem item) {
var filter = item.FindControl(DynamicFilterContainerId) as FilterUserControlBase;
if (filter == null) {
throw new InvalidOperationException(
String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_CouldNotFindControlInTemplate,
ID,
typeof(FilterUserControlBase).FullName,
DynamicFilterContainerId));
}
var column = (MetaColumn)item.DataItem;
filter.TableName = column.Table.Name;
filter.DataField = column.Name;
filter.ContextTypeName = column.Table.DataContextType.AssemblyQualifiedName;
// Keep track of all the filters we create
_filters.Add(filter);
}
///
/// See base class documentation
///
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")]
protected override void OnInit(EventArgs e) {
base.OnInit(e);
// Don't do anything in Design mode
if (DesignMode) {
return;
}
Page.InitComplete += new EventHandler(Page_InitComplete);
}
///
/// See base class documentation
///
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")]
protected override void OnItemCreated(RepeaterItemEventArgs e) {
base.OnItemCreated(e);
if (DesignMode) {
return;
}
ListItemType listItemType = e.Item.ItemType;
if (listItemType == ListItemType.Item || listItemType == ListItemType.AlternatingItem) {
OnFilterItemCreated(e.Item);
}
}
private void Page_InitComplete(object sender, EventArgs e) {
// We need to do this in InitComplete rather than Init to allow the user to set the
// TableName in Page_Init
DataSource = GetFilteredColumns();
DataBind();
}
#region IWhereParametersProvider Members
///
/// See IWhereParametersProvider
///
public virtual IEnumerable GetWhereParameters(IDynamicDataSource dataSource) {
// Add all the specific filters as where parameters
return GetFilterControls().Select(filter => (Parameter)new DynamicControlParameter(filter.UniqueID) {
Name = filter.DataField,
});
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
namespace System.Web.DynamicData {
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Linq;
using System.Security.Permissions;
using System.Web;
using System.Web.Compilation;
using System.Web.Resources;
using System.Web.UI;
using System.Web.UI.WebControls;
///
/// Repeater Control that enumerates over all the filterable columns in a table
///
[ToolboxItem(false)]
[ParseChildren(true)]
public class FilterRepeater : Repeater, IWhereParametersProvider {
private string _contextTypeName;
private string _dynamicFilterContainerId;
private List _filters = new List();
private MetaTable _table;
private string _tableName;
///
/// The context that the filtered table belongs to
///
[Category("Data"),
DefaultValue((string)null),
Themeable(false)]
//
public string ContextTypeName {
get {
return _contextTypeName ?? String.Empty;
}
set {
if (!ContextTypeName.Equals(value)) {
_contextTypeName = value;
_table = null;
}
}
}
///
/// ID of the filter control in the ItemTemplate. By default, it's "DynamicFilter".
///
[Category("Behavior"),
DefaultValue("DynamicFilter"),
Themeable(false),
IDReferenceProperty(typeof(FilterUserControlBase)),
ResourceDescription("DynamicFilterRepeater_DynamicFilterContainerId")]
public string DynamicFilterContainerId {
get {
if (String.IsNullOrEmpty(_dynamicFilterContainerId)) {
_dynamicFilterContainerId = "DynamicFilter";
}
return _dynamicFilterContainerId;
}
set {
_dynamicFilterContainerId = value;
}
}
///
/// Returns the table associated with this filter repeater.
///
public MetaTable Table {
get {
if (_table == null) {
_table = GetTable();
}
return _table;
}
}
///
/// Name of the table being filtered
///
[Category("Data"),
DefaultValue((string)null),
Themeable(false),
ResourceDescription("FilterRepeater_TableName")]
public string TableName {
get {
return _tableName ?? String.Empty;
}
set {
if (!TableName.Equals(value)) {
_tableName = value;
_table = null;
}
}
}
public override bool Visible {
get {
//
return base.Visible && _filters.Count > 0;
}
set {
base.Visible = value;
}
}
///
/// same as base.
///
public override void DataBind() {
// Start with an empty filters list when DataBinding. This is needed when DataBind()
// gets called multiple times.
_filters.Clear();
base.DataBind();
}
///
/// Returns an enumeration of the columns belonging to the table associated with
/// this filter repeater that are sortable (by default, foreign key and boolean columns)
/// that are scaffoldable
///
/// GetFilteredColumns() {
return Table.Columns.Where(c => IsFilterableColumn(c));
}
internal IEnumerable GetFilterControls() {
return _filters;
}
private MetaTable GetTable() {
if (!String.IsNullOrEmpty(ContextTypeName) || !String.IsNullOrEmpty(TableName)) {
// get table from control properties
string contextTypeName = ContextTypeName;
string tableName = TableName;
if (String.IsNullOrEmpty(ContextTypeName)) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_MissingContextTypeName,
ID));
} else if (String.IsNullOrEmpty(tableName)) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_MissingTableName,
ID));
}
Type contextType = null;
if (!String.IsNullOrEmpty(ContextTypeName)) {
try {
contextType = BuildManager.GetType(contextTypeName, /*throwOnError*/ true, /*ignoreCase*/ true);
} catch (Exception e) {
throw new InvalidOperationException(String.Format(
CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_InvalidContextTypeName,
ID,
contextTypeName), e);
}
}
MetaModel model;
try {
model = MetaModel.GetModel(contextType);
} catch (InvalidOperationException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_UnknownContextTypeName,
ID,
contextType.FullName), e);
}
try {
return model.GetTable(tableName);
} catch (ArgumentException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_InvalidTableName,
ID,
tableName), e);
}
} else {
MetaTable table = DynamicDataRouteHandler.GetRequestMetaTable(HttpContext.Current);
if (table == null) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_CantInferInformationFromUrl,
ID));
}
return table;
}
}
internal static bool IsFilterableColumn(MetaColumn column) {
if (!column.Scaffold) return false;
if (column.IsCustomProperty) return false;
if (column is MetaForeignKeyColumn) return true;
if (column.ColumnType == typeof(bool)) return true;
return false;
}
///
/// gets called for every item and alternating item template being instantiated by this
/// repeater during databinding
///
///
protected virtual void OnFilterItemCreated(RepeaterItem item) {
var filter = item.FindControl(DynamicFilterContainerId) as FilterUserControlBase;
if (filter == null) {
throw new InvalidOperationException(
String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterRepeater_CouldNotFindControlInTemplate,
ID,
typeof(FilterUserControlBase).FullName,
DynamicFilterContainerId));
}
var column = (MetaColumn)item.DataItem;
filter.TableName = column.Table.Name;
filter.DataField = column.Name;
filter.ContextTypeName = column.Table.DataContextType.AssemblyQualifiedName;
// Keep track of all the filters we create
_filters.Add(filter);
}
///
/// See base class documentation
///
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")]
protected override void OnInit(EventArgs e) {
base.OnInit(e);
// Don't do anything in Design mode
if (DesignMode) {
return;
}
Page.InitComplete += new EventHandler(Page_InitComplete);
}
///
/// See base class documentation
///
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")]
protected override void OnItemCreated(RepeaterItemEventArgs e) {
base.OnItemCreated(e);
if (DesignMode) {
return;
}
ListItemType listItemType = e.Item.ItemType;
if (listItemType == ListItemType.Item || listItemType == ListItemType.AlternatingItem) {
OnFilterItemCreated(e.Item);
}
}
private void Page_InitComplete(object sender, EventArgs e) {
// We need to do this in InitComplete rather than Init to allow the user to set the
// TableName in Page_Init
DataSource = GetFilteredColumns();
DataBind();
}
#region IWhereParametersProvider Members
///
/// See IWhereParametersProvider
///
public virtual IEnumerable GetWhereParameters(IDynamicDataSource dataSource) {
// Add all the specific filters as where parameters
return GetFilterControls().Select(filter => (Parameter)new DynamicControlParameter(filter.UniqueID) {
Name = filter.DataField,
});
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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