136 lines
6.2 KiB
Plaintext
136 lines
6.2 KiB
Plaintext
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<#@ Template Language="VB" HostSpecific="True" Inherits="DynamicTransform" #>
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<#@ Output extension="ascx" #>
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<#@ assembly name="System.ComponentModel.DataAnnotations" #>
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<#@ assembly name="System.Core" #>
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<#@ assembly name="System.Data.Entity" #>
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<#@ assembly name="System.Data.Linq" #>
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<#@ import namespace="System" #>
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<#@ import namespace="System.Collections" #>
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<#@ import namespace="System.Collections.Generic" #>
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<#@ import namespace="System.ComponentModel.DataAnnotations" #>
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<#@ import namespace="System.Data.Linq.Mapping" #>
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<#@ import namespace="System.Data.Objects.DataClasses" #>
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<#@ import namespace="System.Linq" #>
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<#@ import namespace="System.Reflection" #>
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<#@ import namespace="EnvDTE" #>
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<#
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Dim viewDataType = CType(Model.ViewDataType, CodeType)
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Dim mvcViewDataTypeGenericString As String = If(viewDataType IsNot Nothing, "(Of " & viewDataType.FullName & ")", String.Empty)
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#>
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<%@ Control Language="VB" Inherits="System.Web.Mvc.ViewUserControl<#= mvcViewDataTypeGenericString #>" %>
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<#
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For Each modelProp As ModelProperty In GetModelProperties(Model.ViewDataType, False)
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If (Not modelProp.IsPrimaryKey) AndAlso (Not modelProp.IsForeignKey) AndAlso (Not modelProp.IsReadOnly) Then
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#>
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<div class="editor-label">
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<%: Html.LabelFor(Function(model) model.<#= modelProp.Name #>) %>
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</div>
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<div class="editor-field">
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<%: Html.EditorFor(Function(model) model.<#= modelProp.Name #>) %>
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<%: Html.ValidationMessageFor(Function(model) model.<#= modelProp.Name #>) %>
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</div>
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<#
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End If
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Next
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#>
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<# For Each relation As RelatedEntityInfo In ParentRelations #>
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<div class="editor-label">
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<#= relation.RelationName #>
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</div>
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<div class="editor-field">
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<%: Html.DropDownListFor(Function(model) model.<#= relation.RelationProperty.Name #>, CType(ViewBag.Possible<#= relation.RelationNamePlural #>, IEnumerable(Of <#= relation.RelatedEntityType.FullName #>)).Select(Function(optionValue) New SelectListItem() With { _
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.Text = <#= GetValueExpression("optionValue", relation.RelatedEntityType) #>, _
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.Value = optionValue.<#= relation.RelatedEntityPrimaryKeyName #>.ToString(), _
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.Selected = (Model IsNot Nothing) AndAlso (optionValue.<#= relation.RelatedEntityPrimaryKeyName #>.Equals(Model.<#= relation.RelationProperty.Name #>)) _
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}), "Choose...") %>
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<%: Html.ValidationMessageFor(Function(model) model.<#= relation.RelationProperty.Name #>) %>
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</div>
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<# Next #><#+
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' Describes the information about a property on the model
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Private Class ModelProperty
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Public Name As String
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Public ValueExpression As String
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Public Type As CodeTypeRef
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Public IsReadOnly As Boolean
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Public IsPrimaryKey As Boolean
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Public IsForeignKey As Boolean
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End Class
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' Change this list to include any non-primitive types you think should be eligible to be edited using a textbox
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Private Shared bindableNonPrimitiveTypes As Type() = New Type() {
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GetType(String),
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GetType(Decimal),
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GetType(Guid),
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GetType(DateTime),
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GetType(DateTimeOffset),
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GetType(TimeSpan)
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}
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' Call this to get the list of properties in the model. Change this to modify or add your
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' own default formatting for display values.
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Private Function GetModelProperties(ByVal type As CodeType, ByVal includeUnbindableProperties As Boolean) As List(Of ModelProperty)
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Dim results As List(Of ModelProperty) = GetEligibleProperties(type, includeUnbindableProperties)
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For Each modelProp As ModelProperty In results
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If ((modelProp.Type.UnderlyingTypeIs(GetType(Double))) OrElse (modelProp.Type.UnderlyingTypeIs(GetType(Decimal)))) Then
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modelProp.ValueExpression = ("String.Format(""{0:F}"", " & modelProp.ValueExpression & ")")
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ElseIf (modelProp.Type.UnderlyingTypeIs(GetType(DateTime))) Then
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modelProp.ValueExpression = ("String.Format(""{0:g}"", " & modelProp.ValueExpression & ")")
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ElseIf (Not IsBindableType(modelProp.Type))
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modelProp.ValueExpression = GetValueExpression("Model." & modelProp.Name, CType(modelProp.Type.CodeType, CodeType))
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End If
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Next
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Return results
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End Function
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' Change this list to include the names of properties that should be selected to represent an entity as a single string
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Private Shared displayPropertyNames As String() = New String() { "Name", "Title", "LastName", "Surname", "Subject", "Count" }
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Private Function GetValueExpression(ByVal propertyExpression As String, ByVal propertyType As CodeType) As String
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If propertyType IsNot Nothing Then
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Dim chosenSubproperty = If(propertyType.DisplayColumnProperty(), propertyType.FindProperty(displayPropertyNames))
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If chosenSubproperty IsNot Nothing Then
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Dim toStringSuffix = If(chosenSubproperty.Type.AsFullName = "System.String", "", ".ToString()")
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Return String.Format("(If({0} Is Nothing, ""None"", {0}.{1}{2}))", propertyExpression, chosenSubproperty.Name, toStringSuffix)
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End If
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End If
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Return "Html.DisplayTextFor(Function(model) " & propertyExpression & ").ToString()"
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End Function
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' Helper
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Private Function GetEligibleProperties(ByVal type As CodeType, ByVal includeUnbindableProperties As Boolean) As List(Of ModelProperty)
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Dim results As New List(Of ModelProperty)
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If type IsNot Nothing Then
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For Each prop As CodeProperty In type.VisibleMembers().OfType(Of CodeProperty)()
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Dim propValue = prop
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If (prop.IsReadable() AndAlso (Not prop.HasIndexParameters()) AndAlso (includeUnbindableProperties OrElse IsBindableType(prop.Type))) Then
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results.Add(New ModelProperty() With { _
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.Name = prop.Name, _
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.ValueExpression = ("Model." & prop.Name), _
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.Type = prop.Type, _
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.IsPrimaryKey = Model.PrimaryKeyName = prop.Name, _
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.IsReadOnly = Not prop.IsWriteable(), _
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.IsForeignKey = ParentRelations.Any(Function(x) propValue.Name = x.RelationProperty.Name) _
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})
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End If
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Next
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End If
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Return results
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End Function
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Private ReadOnly Property ParentRelations As IEnumerable(Of RelatedEntityInfo)
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Get
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Return CType(Model.RelatedEntities, IEnumerable).OfType(Of RelatedEntityInfo)().Where(Function(x) x.RelationType = RelationType.Parent)
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End Get
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End Property
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' Helper
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Private Function IsBindableType(ByVal type As CodeTypeRef) As Boolean
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Return type.UnderlyingIsPrimitive() OrElse bindableNonPrimitiveTypes.Any(Function(x) type.UnderlyingTypeIs(x))
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End Function
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#>
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