1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
namespace System.Workflow.Activities
{
using System;
using System.Text;
using System.Reflection;
using System.Collections;
using System.CodeDom;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Workflow.ComponentModel;
using System.Workflow.ComponentModel.Design;
using System.Workflow.ComponentModel.Compiler;
using System.Workflow.Activities.Common;
#region Class CallExternalMethodActivityDesigner
[ActivityDesignerTheme(typeof(InvokeMethodDesignerTheme))]
internal class CallExternalMethodActivityDesigner : ActivityDesigner
{
protected override void PreFilterProperties(IDictionary properties)
{
base.PreFilterProperties(properties);
CallExternalMethodActivity invokeMethod = Activity as CallExternalMethodActivity;
object corrRefProperty = properties["CorrelationToken"];
AddRemoveCorrelationToken(invokeMethod.InterfaceType, properties, corrRefProperty);
Type type = invokeMethod.InterfaceType;
if (type == null)
return;
AddRemoveCorrelationToken(type, properties, corrRefProperty);
invokeMethod.GetParameterPropertyDescriptors(properties);
}
private void AddRemoveCorrelationToken(Type interfaceType, IDictionary properties, object corrRefProperty)
{
if (interfaceType != null)
{
object[] corrProvAttribs = interfaceType.GetCustomAttributes(typeof(CorrelationProviderAttribute), false);
object[] corrParamAttribs = interfaceType.GetCustomAttributes(typeof(CorrelationParameterAttribute), false);
if (corrProvAttribs.Length != 0 || corrParamAttribs.Length != 0)
{
if (!properties.Contains("CorrelationToken"))
properties.Add("CorrelationToken", corrRefProperty);
return;
}
}
if (properties.Contains("CorrelationToken"))
properties.Remove("CorrelationToken");
}
protected override void OnActivityChanged(ActivityChangedEventArgs e)
{
base.OnActivityChanged(e);
if (e.Member != null)
{
if (e.Member.Name == "InterfaceType")
{
if (Activity.Site != null)
{
Type interfaceType = e.NewValue as Type;
if (interfaceType != null)
new ExternalDataExchangeInterfaceTypeFilterProvider(Activity.Site).CanFilterType(interfaceType, true);
CallExternalMethodActivity invokeActivity = e.Activity as CallExternalMethodActivity;
PropertyDescriptorUtils.SetPropertyValue(Activity.Site, TypeDescriptor.GetProperties(Activity)["MethodName"], Activity, String.Empty);
IExtendedUIService extUIService = (IExtendedUIService)Activity.Site.GetService(typeof(IExtendedUIService));
if (extUIService == null)
throw new Exception(SR.GetString(SR.General_MissingService, typeof(IExtendedUIService).FullName));
}
}
if ((e.Member.Name == "MethodName")
&& e.Activity is CallExternalMethodActivity)
(e.Activity as CallExternalMethodActivity).ParameterBindings.Clear();
if (e.Member.Name == "InterfaceType" || e.Member.Name == "MethodName" || e.Member.Name == "CorrelationToken")
TypeDescriptor.Refresh(e.Activity);
}
}
}
#endregion
#region InvokeMethodDesignerTheme
internal sealed class InvokeMethodDesignerTheme : ActivityDesignerTheme
{
public InvokeMethodDesignerTheme(WorkflowTheme theme)
: base(theme)
{
this.ForeColor = Color.FromArgb(0xFF, 0x00, 0x00, 0x00);
this.BorderColor = Color.FromArgb(0xFF, 0x73, 0x79, 0xA5);
this.BorderStyle = DashStyle.Solid;
this.BackColorStart = Color.FromArgb(0xFF, 0xDF, 0xE8, 0xFF);
this.BackColorEnd = Color.FromArgb(0xFF, 0x95, 0xB3, 0xFF);
this.BackgroundStyle = LinearGradientMode.Horizontal;
}
}
#endregion
}
|
