C＃如何将DataSet.GetXml（）十进制分隔符更改为“，”

Question

My default decimal separator is "," when calling method myDataSet.GetXml() all decimal values from myDataSet are saving to XML with dot "." separator. The problem is, when I want to parse this XML back to myDataSet, and VS throws me Exception that decimal field accepts only decimal values, because of this separator.

Example how i get XML:

var xml = myDataSet.GetXml(); //Gives me XML with dots in decimals

Example how i try parse to DataTable:

var recordsDeleted = new DataTable(); //In my code I clone table from existing
recordsDeleted.Columns.Add("decimalFirst", typeof(decimal));
recordsDeleted.Columns.Add("decimalSecond", typeof(decimal));
recordsDeleted.Columns.Add("text", typeof(string));

var paramsToDataTable = new List<string> {"12.34","22.22","Foo"}; //This comes from XML
recordsDeleted.Rows.Add(paramsToDataTable.ToArray());

Please help me, how to change separator when saving to XML, or other solution to solve problem when parsing. Thanks!

Answer 1

您需要在应用程序开始时将CulutreInfo的数字分隔符设置为，

Answer 2

DataSet.GetXml() exports decimal columns with a period separator as you've noted. You can't change this: XML schema numeric data types always use a period separator.

However, this code:

recordsDeleted.Rows.Add(paramsToDataTable.ToArray());

will attempt to convert each value in paramsToDataTable.ToArray() to the appropriate data type using the culture of the DataTable .

This culture defaults to CultureInfo.CurrentCulture , but you can override it as follows:

var recordsDeleted = new DataTable();
recordsDeleted.Locale = CultureInfo.InvariantCulture;

You should note that it would be more usual to read XML into a DataTable using DataTable.ReadXml() . If you do this, you won't need to be concerned about cultures / locales.