隔离存储配额增加和异常处理

问题描述

大家好，

我是Silverlight开发的新手。我对此几乎没有疑问。

1）如何在页面加载时增加隔离存储（IS）配额大小。根据我的理解，需要用户启动的事件来弹出标准配额增加对话框。但我想在页面加载时弹出该对话框，而不是按下单击按钮
。换句话说，当应用程序加载时，我想检查IS大小。如果它小于50 MB我想向用户显示对话框以批准IS的50 MB大小。我该怎么办？

 

2）当我要使用以下代码行在IS中保存一些数据时/ p>

 IsolatedStorageSettings.ApplicationSettings.Remove（" MyCache"）; 
 IsolatedStorageSettings.ApplicationSettings.Add（" MyCache"，Data）; 
 IsolatedStorageSettings.ApplicationSettings.Save（）; 

如果IS中剩余的空间较少且数据大小很大，则抛出异常。我不希望这种情况发生。什么时候抛出异常，我想从IS中清除旧数据，或者我想将IS的大小增加50MB。请告诉
我该怎么办？

如果您有任何其他问题，请不要犹豫。等待你的回复。

 

问候，

Sulaman

 

解决方案

Hi All,

I am new to silverlight development. I have few question regarding this.

1) How can I increase the isolated storage (IS) quota size on page load. According to my understanding, a user initiated event is required to pop up the standard quota increase dialogue box. But i want to pop up that dialogue box on page load rather then on a button click. In other words, when application loads, i want to check the IS size. If its less then 50 MB i want to show dialogue box to user to approve the 50 MB size for IS. How can i do it?

2) When i am going to save some data in IS by using the following lines of code

IsolatedStorageSettings.ApplicationSettings.Remove("MyCache");
IsolatedStorageSettings.ApplicationSettings.Add("MyCache", Data);
IsolatedStorageSettings.ApplicationSettings.Save();

if there is less space left in IS and size of data is large, then an exception is thrown. I don't want this to happen. When ever exception is going to be thrown, i want to clear the old data from IS or i want to increase the size of IS by 50MB. Kindly tell me how can i do it?

If you have any other question, plz don't hesitate to ask. Waiting for your reply.

Regards,

Sulaman

解决方案

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