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| Rev | Author | Line No. | Line |
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| 2498 | - | 1 | |
| 2 | namespace GMap.NET |
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| 3 | { |
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| 4 | using System; |
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| 5 | using System.Runtime.Serialization; |
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| 6 | using System.Diagnostics; |
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| 7 | |||
| 8 | public static class Extensions |
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| 9 | { |
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| 10 | /// <summary> |
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| 11 | /// Retrieves a value from the SerializationInfo of the given type. |
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| 12 | /// </summary> |
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| 13 | /// <typeparam name="T">The Type that we are attempting to de-serialize.</typeparam> |
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| 14 | /// <param name="info">The SerializationInfo.</param> |
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| 15 | /// <param name="key">The key of the value we wish to retrieve.</param> |
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| 16 | /// <returns>The value if found, otherwise null.</returns> |
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| 17 | public static T GetValue<T>(SerializationInfo info, string key) where T : class |
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| 18 | { |
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| 19 | try |
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| 20 | { |
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| 21 | // Return the value from the SerializationInfo, casting it to type T. |
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| 22 | return info.GetValue(key, typeof(T)) as T; |
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| 23 | } |
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| 24 | catch(Exception ex) |
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| 25 | { |
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| 26 | Debug.WriteLine("Extensions.GetValue: " + ex.Message); |
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| 27 | return null; |
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| 28 | } |
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| 29 | } |
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| 30 | |||
| 31 | /// <summary> |
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| 32 | /// Retrieves a value from the SerializationInfo of the given type. |
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| 33 | /// </summary> |
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| 34 | /// <typeparam name="T">The Type that we are attempting to de-serialize.</typeparam> |
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| 35 | /// <param name="info">The SerializationInfo.</param> |
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| 36 | /// <param name="key">The key of the value we wish to retrieve.</param> |
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| 37 | /// <param name="defaultValue">The default value if the de-serialized value was null.</param> |
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| 38 | /// <returns>The value if found, otherwise the default value.</returns> |
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| 39 | public static T GetValue<T>(SerializationInfo info, string key, T defaultValue) where T : class |
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| 40 | { |
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| 41 | T deserializedValue = GetValue<T>(info, key); |
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| 42 | if(deserializedValue != null) |
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| 43 | { |
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| 44 | return deserializedValue; |
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| 45 | } |
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| 46 | |||
| 47 | return defaultValue; |
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| 48 | } |
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| 49 | |||
| 50 | /// <summary> |
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| 51 | /// Retrieves a value from the SerializationInfo of the given type for structs. |
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| 52 | /// </summary> |
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| 53 | /// <typeparam name="T">The Type that we are attempting to de-serialize.</typeparam> |
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| 54 | /// <param name="info">The SerializationInfo.</param> |
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| 55 | /// <param name="key">The key of the value we wish to retrieve.</param> |
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| 56 | /// <param name="defaultValue">The default value if the de-serialized value was null.</param> |
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| 57 | /// <returns>The value if found, otherwise the default value.</returns> |
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| 58 | public static T GetStruct<T>(SerializationInfo info, string key, T defaultValue) where T : struct |
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| 59 | { |
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| 60 | try |
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| 61 | { |
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| 62 | return (T)info.GetValue(key, typeof(T)); |
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| 63 | } |
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| 64 | catch(Exception ex) |
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| 65 | { |
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| 66 | Debug.WriteLine("Extensions.GetStruct: " + ex.Message); |
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| 67 | return defaultValue; |
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| 68 | } |
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| 69 | } |
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| 70 | |||
| 71 | /// <summary> |
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| 72 | /// Retrieves a value from the SerializationInfo of the given type for structs. |
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| 73 | /// </summary> |
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| 74 | /// <typeparam name="T">The Type that we are attempting to de-serialize.</typeparam> |
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| 75 | /// <param name="info">The SerializationInfo.</param> |
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| 76 | /// <param name="key">The key of the value we wish to retrieve.</param> |
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| 77 | /// <param name="defaultValue">The default value if the de-serialized value was null.</param> |
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| 78 | /// <returns>The value if found, otherwise the default value.</returns> |
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| 79 | public static Nullable<T> GetStruct<T>(SerializationInfo info, string key, Nullable<T> defaultValue) where T : struct |
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| 80 | { |
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| 81 | try |
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| 82 | { |
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| 83 | return (Nullable<T>)info.GetValue(key, typeof(Nullable<T>)); |
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| 84 | } |
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| 85 | catch(Exception ex) |
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| 86 | { |
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| 87 | Debug.WriteLine("Extensions.GetStruct: " + ex.Message); |
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| 88 | return defaultValue; |
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| 89 | } |
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| 90 | } |
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| 91 | } |
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| 92 | } |