Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWebControlsDesign / System / Data / WebControls / Design / EntityDataSourceStatementEditor.cs / 1305376 / EntityDataSourceStatementEditor.cs
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// @owner [....]
// @backupOwner [....]
//---------------------------------------------------------------------
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Web.UI.Design.WebControls.Util;
using System.Diagnostics;
using System.Drawing.Design;
using System.Web.UI;
using System.Web.UI.Design;
using System.Web.UI.WebControls;
using System.Windows.Forms;
namespace System.Web.UI.Design.WebControls
{
internal class EntityDataSourceStatementEditor : UITypeEditor
{
private bool EditQueryChangeCallback(object pair)
{
// pair.First is a wrapper that contains the EntityDataSource instance and property name being edited
// pair.Second contains the value of the property being edited
ITypeDescriptorContext context = (ITypeDescriptorContext)((Pair)pair).First;
string value = (string)((Pair)pair).Second;
EntityDataSource entityDataSource = (EntityDataSource)context.Instance;
IServiceProvider serviceProvider = entityDataSource.Site;
IDesignerHost designerHost = (IDesignerHost)serviceProvider.GetService(typeof(IDesignerHost));
Debug.Assert(designerHost != null, "Did not get DesignerHost service.");
EntityDataSourceDesigner designer = (EntityDataSourceDesigner)designerHost.GetDesigner(entityDataSource);
// Configure the dialog for the specified property and display it
return Initialize(designer, entityDataSource, context.PropertyDescriptor.Name, serviceProvider, value);
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
ControlDesigner.InvokeTransactedChange(
(IComponent)context.Instance,
new TransactedChangeCallback(EditQueryChangeCallback),
new Pair(context, value),
Strings.ExpressionEditorTransactionDescription);
return value;
}
// Determines if the specified property is one that has an associated "AutoGenerateXXXClause" property
private static bool GetAutoGen(string operation, EntityDataSourceDesigner entityDataSourceDesigner)
{
if (String.Equals("Where", operation, StringComparison.Ordinal))
{
return entityDataSourceDesigner.AutoGenerateWhereClause;
}
else if (String.Equals("OrderBy", operation, StringComparison.Ordinal))
{
return entityDataSourceDesigner.AutoGenerateOrderByClause;
}
return false;
}
public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
{
return UITypeEditorEditStyle.Modal;
}
// Gets the name of the AutoGenerateXXXProperty associated with the specified property name
private static string GetOperationAutoGenerateProperty(string propertyName)
{
if (String.Equals("Where", propertyName, StringComparison.Ordinal))
{
return "AutoGenerateWhereClause";
}
else if (String.Equals("OrderBy", propertyName, StringComparison.Ordinal))
{
return "AutoGenerateOrderByClause";
}
return null;
}
// Gets the label text or accessible name to display over the textbox for editing the specified property name
private static string GetStatementLabel(string propertyName, bool accessible)
{
switch (propertyName)
{
case "CommandText":
return accessible ? Strings.ExpressionEditor_CommandTextLabelAccessibleName :
Strings.ExpressionEditor_CommandTextLabel;
case "OrderBy":
case "Select":
case "Where":
return accessible ? Strings.ExpressionEditor_ExpressionStatementLabelAccessibleName(propertyName) :
Strings.ExpressionEditor_ExpressionStatementLabel(propertyName);
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return null;
}
}
// Gets the F1 help topic for each of the dialogs using the specified property name
private static string GetHelpTopic(string propertyName)
{
switch (propertyName)
{
case "CommandText": return "net.Asp.EntityDataSource.CommandTextExpression";
case "OrderBy": return "net.Asp.EntityDataSource.OrderByExpression";
case "Select": return "net.Asp.EntityDataSource.SelectExpression";
case "Where": return "net.Asp.EntityDataSource.WhereExpression";
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return String.Empty;
}
}
// Gets the property name for the parameters property associated with the specified property name
private static string GetOperationParameterProperty(string propertyName)
{
switch (propertyName)
{
case "CommandText":
return "CommandParameters";
case "OrderBy":
return "OrderByParameters";
case "Select":
return "SelectParameters";
case "Where":
return "WhereParameters";
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return null;
}
}
// Gets a clone of the parameters collection associated with the specified property name
private static ParameterCollection GetParameters(string propertyName, EntityDataSourceDesigner designer)
{
switch (propertyName)
{
case "CommandText":
return designer.CloneCommandParameters();
case "OrderBy":
return designer.CloneOrderByParameters();
case "Select":
return designer.CloneSelectParameters();
case "Where":
return designer.CloneWhereParameters();
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return null;
}
}
// Updates the parameters collection associated with the specified property name
private static void SetParameters(string propertyName, EntityDataSourceDesigner designer, ParameterCollection parameters)
{
switch (propertyName)
{
case "CommandText":
designer.SetCommandParameterContents(parameters);
break;
case "OrderBy":
designer.SetOrderByParameterContents(parameters);
break;
case "Select":
designer.SetSelectParameterContents(parameters);
break;
case "Where":
designer.SetWhereParameterContents(parameters);
break;
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
break;
}
}
// Configures and displays the editor dialog based on the specified property name
private bool Initialize(EntityDataSourceDesigner designer, EntityDataSource entityDataSource, string propertyName, IServiceProvider serviceProvider, string statement)
{
string propertyParameters = GetOperationParameterProperty(propertyName);
string autoGenProperty = GetOperationAutoGenerateProperty(propertyName);
bool hasAutoGen = (autoGenProperty != null);
bool autoGen = GetAutoGen(propertyName, designer);
ParameterCollection parameters = GetParameters(propertyName, designer);
string label = GetStatementLabel(propertyName, false);
string accessibleName = GetStatementLabel(propertyName, true);
string helpTopic = GetHelpTopic(propertyName);
EntityDataSourceStatementEditorForm form = new EntityDataSourceStatementEditorForm(entityDataSource, serviceProvider,
hasAutoGen, autoGen, propertyName, label, accessibleName, helpTopic, statement, parameters);
DialogResult result = UIHelper.ShowDialog(serviceProvider, form);
if (result == DialogResult.OK)
{
// We use the property descriptors to reset the values to
// make sure we clear out any databindings or expressions that
// may be set.
PropertyDescriptor propDesc = null;
if (autoGenProperty != null)
{
propDesc = TypeDescriptor.GetProperties(entityDataSource)[autoGenProperty];
propDesc.ResetValue(entityDataSource);
propDesc.SetValue(entityDataSource, form.AutoGen);
}
if (propertyName != null)
{
propDesc = TypeDescriptor.GetProperties(entityDataSource)[propertyName];
propDesc.ResetValue(entityDataSource);
propDesc.SetValue(entityDataSource, form.Statement);
}
if (propertyParameters != null)
{
SetParameters(propertyName, designer, form.Parameters);
}
return true;
}
else
{
return false;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// @owner [....]
// @backupOwner [....]
//---------------------------------------------------------------------
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Web.UI.Design.WebControls.Util;
using System.Diagnostics;
using System.Drawing.Design;
using System.Web.UI;
using System.Web.UI.Design;
using System.Web.UI.WebControls;
using System.Windows.Forms;
namespace System.Web.UI.Design.WebControls
{
internal class EntityDataSourceStatementEditor : UITypeEditor
{
private bool EditQueryChangeCallback(object pair)
{
// pair.First is a wrapper that contains the EntityDataSource instance and property name being edited
// pair.Second contains the value of the property being edited
ITypeDescriptorContext context = (ITypeDescriptorContext)((Pair)pair).First;
string value = (string)((Pair)pair).Second;
EntityDataSource entityDataSource = (EntityDataSource)context.Instance;
IServiceProvider serviceProvider = entityDataSource.Site;
IDesignerHost designerHost = (IDesignerHost)serviceProvider.GetService(typeof(IDesignerHost));
Debug.Assert(designerHost != null, "Did not get DesignerHost service.");
EntityDataSourceDesigner designer = (EntityDataSourceDesigner)designerHost.GetDesigner(entityDataSource);
// Configure the dialog for the specified property and display it
return Initialize(designer, entityDataSource, context.PropertyDescriptor.Name, serviceProvider, value);
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
ControlDesigner.InvokeTransactedChange(
(IComponent)context.Instance,
new TransactedChangeCallback(EditQueryChangeCallback),
new Pair(context, value),
Strings.ExpressionEditorTransactionDescription);
return value;
}
// Determines if the specified property is one that has an associated "AutoGenerateXXXClause" property
private static bool GetAutoGen(string operation, EntityDataSourceDesigner entityDataSourceDesigner)
{
if (String.Equals("Where", operation, StringComparison.Ordinal))
{
return entityDataSourceDesigner.AutoGenerateWhereClause;
}
else if (String.Equals("OrderBy", operation, StringComparison.Ordinal))
{
return entityDataSourceDesigner.AutoGenerateOrderByClause;
}
return false;
}
public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
{
return UITypeEditorEditStyle.Modal;
}
// Gets the name of the AutoGenerateXXXProperty associated with the specified property name
private static string GetOperationAutoGenerateProperty(string propertyName)
{
if (String.Equals("Where", propertyName, StringComparison.Ordinal))
{
return "AutoGenerateWhereClause";
}
else if (String.Equals("OrderBy", propertyName, StringComparison.Ordinal))
{
return "AutoGenerateOrderByClause";
}
return null;
}
// Gets the label text or accessible name to display over the textbox for editing the specified property name
private static string GetStatementLabel(string propertyName, bool accessible)
{
switch (propertyName)
{
case "CommandText":
return accessible ? Strings.ExpressionEditor_CommandTextLabelAccessibleName :
Strings.ExpressionEditor_CommandTextLabel;
case "OrderBy":
case "Select":
case "Where":
return accessible ? Strings.ExpressionEditor_ExpressionStatementLabelAccessibleName(propertyName) :
Strings.ExpressionEditor_ExpressionStatementLabel(propertyName);
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return null;
}
}
// Gets the F1 help topic for each of the dialogs using the specified property name
private static string GetHelpTopic(string propertyName)
{
switch (propertyName)
{
case "CommandText": return "net.Asp.EntityDataSource.CommandTextExpression";
case "OrderBy": return "net.Asp.EntityDataSource.OrderByExpression";
case "Select": return "net.Asp.EntityDataSource.SelectExpression";
case "Where": return "net.Asp.EntityDataSource.WhereExpression";
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return String.Empty;
}
}
// Gets the property name for the parameters property associated with the specified property name
private static string GetOperationParameterProperty(string propertyName)
{
switch (propertyName)
{
case "CommandText":
return "CommandParameters";
case "OrderBy":
return "OrderByParameters";
case "Select":
return "SelectParameters";
case "Where":
return "WhereParameters";
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return null;
}
}
// Gets a clone of the parameters collection associated with the specified property name
private static ParameterCollection GetParameters(string propertyName, EntityDataSourceDesigner designer)
{
switch (propertyName)
{
case "CommandText":
return designer.CloneCommandParameters();
case "OrderBy":
return designer.CloneOrderByParameters();
case "Select":
return designer.CloneSelectParameters();
case "Where":
return designer.CloneWhereParameters();
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
return null;
}
}
// Updates the parameters collection associated with the specified property name
private static void SetParameters(string propertyName, EntityDataSourceDesigner designer, ParameterCollection parameters)
{
switch (propertyName)
{
case "CommandText":
designer.SetCommandParameterContents(parameters);
break;
case "OrderBy":
designer.SetOrderByParameterContents(parameters);
break;
case "Select":
designer.SetSelectParameterContents(parameters);
break;
case "Where":
designer.SetWhereParameterContents(parameters);
break;
default:
Debug.Fail("Unknown property name in EntityDataSourceStatementEditor: " + propertyName);
break;
}
}
// Configures and displays the editor dialog based on the specified property name
private bool Initialize(EntityDataSourceDesigner designer, EntityDataSource entityDataSource, string propertyName, IServiceProvider serviceProvider, string statement)
{
string propertyParameters = GetOperationParameterProperty(propertyName);
string autoGenProperty = GetOperationAutoGenerateProperty(propertyName);
bool hasAutoGen = (autoGenProperty != null);
bool autoGen = GetAutoGen(propertyName, designer);
ParameterCollection parameters = GetParameters(propertyName, designer);
string label = GetStatementLabel(propertyName, false);
string accessibleName = GetStatementLabel(propertyName, true);
string helpTopic = GetHelpTopic(propertyName);
EntityDataSourceStatementEditorForm form = new EntityDataSourceStatementEditorForm(entityDataSource, serviceProvider,
hasAutoGen, autoGen, propertyName, label, accessibleName, helpTopic, statement, parameters);
DialogResult result = UIHelper.ShowDialog(serviceProvider, form);
if (result == DialogResult.OK)
{
// We use the property descriptors to reset the values to
// make sure we clear out any databindings or expressions that
// may be set.
PropertyDescriptor propDesc = null;
if (autoGenProperty != null)
{
propDesc = TypeDescriptor.GetProperties(entityDataSource)[autoGenProperty];
propDesc.ResetValue(entityDataSource);
propDesc.SetValue(entityDataSource, form.AutoGen);
}
if (propertyName != null)
{
propDesc = TypeDescriptor.GetProperties(entityDataSource)[propertyName];
propDesc.ResetValue(entityDataSource);
propDesc.SetValue(entityDataSource, form.Statement);
}
if (propertyParameters != null)
{
SetParameters(propertyName, designer, form.Parameters);
}
return true;
}
else
{
return false;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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