I'm using Linq to return data from an XML file to a DataTable and that works. But now I'm trying to modify the code to loop through the DataTable. I created a custom class to model the data and have a List in my model. When I loop through the DataTable to display records it displays System.Collections.Generic.List`1[System.String] instead of the actual data. I'm not sure what to search to find the answer.
Snippet:
foreach (DataRow row in tbl.Rows)
{
myList = row["myList"] + ", " + myList;
}
The myList column is the List. I hope this makes sense.
Edited:
public static DataTable LINQToDataTable<T>(IEnumerable<T> varlist)
{
DataTable dtReturn = new DataTable();
// column names
PropertyInfo[] oProps = null;
if (varlist == null) return dtReturn;
foreach (T rec in varlist)
{
// Use reflection to get property names, to create table, Only first time, others开发者_如何转开发 will follow
if (oProps == null)
{
oProps = ((Type)rec.GetType()).GetProperties();
foreach (PropertyInfo pi in oProps)
{
Type colType = pi.PropertyType;
if ((colType.IsGenericType) && (colType.GetGenericTypeDefinition() == typeof(Nullable<>)))
{
colType = colType.GetGenericArguments()[0];
}
dtReturn.Columns.Add(new DataColumn(pi.Name, colType));
}
}
DataRow dr = dtReturn.NewRow();
foreach (PropertyInfo pi in oProps)
{
dr[pi.Name] = pi.GetValue(rec, null) == null ?DBNull.Value :pi.GetValue
(rec,null);
}
dtReturn.Rows.Add(dr);
}
return dtReturn;
}
hobbiesList = (List<string>)row["hobbies"];
foreach (var item in hobbiesList)
{
hobbies.Add(item.ToString());
}
hobby = string.Join(", ", hobbies.ToArray());
hobbies.Clear();
I had to do the above to get it to work. I then add hobby to my output array.
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