Sitefinity配置属性为null,即使在设置后也是如此

时间:2017-08-24 18:00:57

标签: c# sitefinity sitefinity-10

我已经创建了一个新的配置文件Special.config

<?xml version="1.0" encoding="utf-8"?>

<SpecialConfig xmlns:config="urn:telerik:sitefinity:configuration" xmlns:type="urn:telerik:sitefinity:configuration:type" config:version="10.0.6401.0">
  <UnicornSettings HornSize="#{HornSize}" HoofColor="#{HoofColor}" />
</SpecialConfig>

然后followed the documentation设置一对类(并在Global.asax.cs中注册配置)文件:

public class SpecialConfig : ConfigSection
{
    public UnicornSettingsElement UnicornSettings
    {
        get
        {
            return (UnicornSettingsElement)this["UnicornSettings"];
        }
        set
        {
            this["UnicornSettings"] = value;
        }
    }
}

public class UnicornSettingsElement : ConfigElement
{
    public UnicornSettingsElement(ConfigElement parent) : base(parent)
    {

    }
    public String HornSize
    {
        get
        {
            return (String)this["HornSize"];
        }
        set
        {
            this["HornSize"] = value;
        }
    }
    public String HoofColor
    {
        get
        {
            return (String)this["HoofColor"];
        }
        set
        {
            this["HoofColor"] = value;
        }
    }
}

但是即使在显式实例化SpecialConfig.UnicornSettings之后,它仍然是null:

UnicornSettings config = Config.Get<UnicornSettings>();
config.UnicornSettings = new UnicornSettingsElement(config);
config.UnicornSettings.HornSize = HornSize; //<-- config.UnicornSettings is null
config.UnicornSettings.HoofColor = HoofColor;

ConfigManager manager = ConfigManager.GetManager();
manager.SaveSection(config);

我不知道如何克服此特定异常,其中引用在设置后立即为null。有人看到我错过的东西吗?

更新

经过进一步的摆弄,我认为SpecialConfig.UnicornSettings上的getter或setter有问题......我不确定那可能是什么。

声明

我理解空引用异常是什么,并且一般来说如何识别和克服空引用异常。这不是特定C#问题的副本,其答案是非常非特定的信息。这是一个特殊而精确的案例,涉及一个特定的框架,保证自己的问题。

1 个答案:

答案 0 :(得分:1)

忘记ConfigurationProperties。我猜这些对于getter / setter访问属性的方式是必要的:

public class SpecialConfig : ConfigSection
{
    [ConfigurationProperty("UnicornSettings")]
    public UnicornSettingsElement UnicornSettings
    {
        get
        {
            return (UnicornSettingsElement)this["UnicornSettings"];
        }
        set
        {
            this["UnicornSettings"] = value;
        }
    }
}

public class UnicornSettingsElement : ConfigElement
{
    public UnicornSettingsElement(ConfigElement parent) : base(parent)
    {

    }
    [ConfigurationProperty("HornSize", IsRequired = true)]
    public String HornSize
    {
        get
        {
            return (String)this["HornSize"];
        }
        set
        {
            this["HornSize"] = value;
        }
    }
    [ConfigurationProperty("HoofColor", IsRequired = true)]
    public String HoofColor
    {
        get
        {
            return (String)this["HoofColor"];
        }
        set
        {
            this["HoofColor"] = value;
        }
    }
}