[英]No mapping for the Unicode character Exception
在C#和Windows Phone SDK中,我遇到以下異常:“ WinRT信息:目標多字節代碼頁中不存在Unicode字符的映射 。”。
我在Windows Phone 8的某些Pivot應用程序上執行操作,並且我需要帶有信息的json文件,其中包含諸如'á'或'ý'之類的字符。 如何無例外地添加這些字符?
這是方法,例外是:
private async void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
// TODO: Create an appropriate data model for your problem domain to replace the sample data
var sampleDataGroup = await SampleDataSource.GetGroupAsync("Group-1");
this.DefaultViewModel[FirstGroupName] = sampleDataGroup;
}
和json文件看起來像這樣:
{"Groups":[
{
"UniqueId": "Group-1",
"Title": "Group Title: 1",
"Subtitle": "Group subtitle: 1",
"ImagePath": "Assets/DarkGray.png",
"Description" : "Group Description: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus tempor scelerisque lorem in vehicula. Aliquam tincidunt, lacus ut sagittis tristique, turpis massa volutpat augue, eu rutrum ligula ante a ante",
"Items":
[
{
"UniqueId": "Group-1-Item-1",
"Title": "ý" /* !!!!this is the problem!!!! */,
"Subtitle": "Item Subtitle: 1",
"ImagePath": "Assets/LightGray.png",
"Description" : "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
"Content" : "Curabitur class aliquam vestibulum nam curae maecenas sed integer cras phasellus."
},
感謝\\ u00fd的作品! 順便說一下,序列化程序是Windows Phone SDK中的dafault:
private async Task GetSampleDataAsync()
{
if (this._groups.Count != 0)
return;
Uri dataUri = new Uri("ms-appx:///DataModel/SampleData.json");
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(dataUri);
string jsonText = await FileIO.ReadTextAsync(file);
JsonObject jsonObject = JsonObject.Parse(jsonText);
JsonArray jsonArray = jsonObject["Groups"].GetArray();
foreach (JsonValue groupValue in jsonArray)
{
JsonObject groupObject = groupValue.GetObject();
SampleDataGroup group = new SampleDataGroup(groupObject["UniqueId"].GetString(),
groupObject["Title"].GetString(),
groupObject["Subtitle"].GetString(),
groupObject["ImagePath"].GetString(),
groupObject["Description"].GetString());
foreach (JsonValue itemValue in groupObject["Items"].GetArray())
{
JsonObject itemObject = itemValue.GetObject();
group.Items.Add(new SampleDataItem(itemObject["UniqueId"].GetString(),
itemObject["Title"].GetString(),
itemObject["Subtitle"].GetString(),
itemObject["ImagePath"].GetString(),
itemObject["Description"].GetString(),
itemObject["Content"].GetString()));
}
this.Groups.Add(group);
}
}
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