My Datatable looks like below.
Years Category msr
2010 cake 872
2010 Soap 514
2011 Soap 5666
2011 cake 4391
When I convert to JSON I got not Problem.
[{"Years":"2010","Category":"cake","msr":872},
{"Years":"2010","Category":"Soap","msr":514},
{"Years":"2011","Category":"cake","msr":566},
{"Years":"2011","Category":"Soap","msr":615}]
but I want to convert the above datatable as below JSON.
[{"Years":"2010","cake":872}, {"Years":"2010","Soap":514}, {"Years":"2011","cake":566}, {"Years":"2011","Soap":615}]
My JSON Conversion Code:
JavaScriptSerializer serializer = new JavaScriptSerializer();
List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();
Dictionary<string, object> row;
foreach (DataRow dr in dt.Rows)
{
row = new Dictionary<string, object>();
foreach (DataColumn col in dt.Columns)
{
row.Add(col.ColumnName, dr[col]);
}
rows.Add(row);
}
return serializer.Serialize(rows);
Can some one help me with some code.
You can do it easily. One thing to note that you don't need a loop inside a coloumn and secondly i have to initialize dictionary inside a loop so that i don't get Dictionary contains already the same key
exception
DataTable dt = new DataTable();
dt.Columns.Add("Years");
dt.Columns.Add("Category");
dt.Columns.Add("msr");
DataRow dtrow = dt.NewRow();
dtrow["Years"] = "2010";
dtrow["Category"] = "cake";
dtrow["msr"] = "872";
dt.Rows.Add(dtrow);
DataRow dtrow2 = dt.NewRow();
dtrow2["Years"] = "2010";
dtrow2["Category"] = "Soap";
dtrow2["msr"] = "514";
dt.Rows.Add(dtrow2);
List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();
Dictionary<string, object> row;
foreach (DataRow dr in dt.Rows)
{
row = new Dictionary<string, object>();
row.Add("Years", dr["Years"]);
row.Add(dr["Category"].ToString(), dr["msr"]);
rows.Add(row);
}
i debugged this code and it gives the desire results. let me know for any updates
You can do something like this:
var result = dt.Rows.Cast<DataRow>()
.Select(row =>
{
var dict = new Dictionary<string, object>();
dict.Add("Years", row[0]);
dict.Add(row[1].ToString(), row[2]);
return dict;
});
Where dt
is your original data table.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.