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
107
108
109
|
//
// System.Web.Compilation.ConnectionStringsExpressionBuilder
//
// Authors:
// Chris Toshok (toshok@ximian.com)
//
// (C) 2006 Novell, Inc (http://www.novell.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System;
using System.CodeDom;
using System.Configuration;
using System.Web.Configuration;
using System.Web.UI;
namespace System.Web.Compilation {
[ExpressionEditor("System.Web.UI.Design.ConnectionStringsExpressionEditor, " + Consts.AssemblySystem_Design)]
[ExpressionPrefix("ConnectionStrings")]
public class ConnectionStringsExpressionBuilder : ExpressionBuilder {
public override object EvaluateExpression (object target, BoundPropertyEntry entry,
object parsedData, ExpressionBuilderContext context)
{
return GetConnectionString (entry.Expression.Trim());
}
public override CodeExpression GetCodeExpression (BoundPropertyEntry entry, object parsedData,
ExpressionBuilderContext context)
{
Pair connString = parsedData as Pair;
return new CodeMethodInvokeExpression (
new CodeTypeReferenceExpression (typeof (ConnectionStringsExpressionBuilder)),
(bool)connString.Second ? "GetConnectionStringProviderName" : "GetConnectionString",
new CodeExpression [] {new CodePrimitiveExpression (connString.First)}
);
}
public static string GetConnectionString (string connectionStringName)
{
ConnectionStringSettings conn = WebConfigurationManager.ConnectionStrings [connectionStringName];
if (conn == null)
return String.Empty;
else
return conn.ConnectionString;
}
public static string GetConnectionStringProviderName (string connectionStringName)
{
ConnectionStringSettings conn = WebConfigurationManager.ConnectionStrings [connectionStringName];
if (conn == null)
return String.Empty;
else
return conn.ProviderName;
}
public override object ParseExpression (string expression, Type propertyType, ExpressionBuilderContext context)
{
bool wantsProviderName = false;
string connStringName = String.Empty;
if (!String.IsNullOrEmpty (expression)) {
int subidx = expression.Length;
if (expression.EndsWith (".providername", StringComparison.InvariantCultureIgnoreCase)) {
wantsProviderName = true;
subidx -= 13;
} else if (expression.EndsWith (".connectionstring", StringComparison.InvariantCultureIgnoreCase))
subidx -= 17;
connStringName = expression.Substring (0, subidx);
}
return new Pair (connStringName, wantsProviderName);
}
public override bool SupportsEvaluate {
get { return true; }
}
}
}
#endif
|
