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Why is an # symbol after = symbol in excel formula with EPPLUS?

This is how the formula appears in excel:
I want to use Forecast formula in Excel with EPPLUS from c#. The formula in the code is correct but in Excel appears =#FORECAST(params).
ExcelRange targetDate = sheet.Cells[listItems + 2, 2];
ExcelRange values = sheet.Cells[2, 3, listItems+1, 3];
ExcelRange timeLine = sheet.Cells[2, 2, listItems+1, 2];
sheet.Cells[8, 4].Formula = "=FORECAST.ETS(" + targetDate + "," + values + "," + timeLine + ",1,1)";
sheet.Cells[8, 4].Calculate();
I want to trim the # from the formula in the excel file, like this:
=FORECAST.ETS(B8,C2:C7,B2:B7,1,1)

In code you don't need to put the '=' character
Just use:
sheet.Cells[8, 4].Formula = "FORECAST.ETS(" + targetDate + "," + values + "," + timeLine + ",1,1)";

Similar Problem
I'm having a similar problem with a different formula:
worksheet.Cells[y, x].Formula = "SUMME(C5:C35)";
gave me =#SUMME(C5:C35) within Excel.
Instead of =SUMME(C5:C35).
Solution
It seems that EPPLUS has problems with the German formula. The problem disappears when I use:
worksheet.Cells[y, x].Formula = "SUM(C5:C35)";
My generated Excel now looks like this: =SUMME(C5:C35) (which is what I need)
I know it's not the answer to the exact problem mentioned above. But I thought it might help someone. And maybe serves as a hint to the original question.

Why does sqlite converts . To ,

I am completely confused by SQLite right now.
I use the System.Data.SQLite Version for C#
I have two Tables:
Table 1:
In it I have created two columns (more but they are the important in this case and the statement is way to long to post it). The first one is called RecStat and the second one DOXinM.
Both are a Decimal and are created like this:
...
[RectStat] Decimal,
[DOXinM] Decimal,
...
The Create Table statement looks like this:
Create Table If Not Exists "Table1"
(..Columns..);
When I insert a value in this table the decimal works perfectly fine and when I read it out it works too on the xaml GUI.
After that I created a second Table which also has a Decimal Column.
I Created the table the same way (this is a short one, So i can give the whole statement)
Create Table If Not Exists "Table2" (
[ID] Integer Not Null Primary Key,
[Material] VarChar(10],
[Thickness] Decimal);
C# Code for the creation (Note that I work with a const string for all SQL Commands):
mySQLiteCommand.CommandText = #"" + DatabasePara.CREATE_SQL + " " + DatabasePara.TABLE_SQL + " " + DatabasePara.IF_SQL + " " + DatabasePara.NOT_SQL + " " + DatabasePara.EXISTS_SQL + " " + DBTableFilter.Filter + "
mySQLiteCommand.CommandText += #"([" + DBTableFilter.ID + "] " + DatabasePara.INTEGER_SQL + " " + DatabasePara.NOT_SQL + " " + DatabasePara.NULL_SQL + " " + DatabasePara.PRIMARYKEY_SQL + ", ";
mySQLiteCommand.CommandText += #"[" + DBTableFilter.Material + "] " + DatabasePara.VARCHAR_SQL + "(360), ";
mySQLiteCommand.CommandText += #"[" + DBTableFilter.Thickness + "] " + DatabasePara.DECIMAL_SQL + ");";
mySQLiteCommand.ExecuteNonQuery();
In both case I do the same insert for the Decimal Column:
Insert into Table1 ('RectStat') values ('10.5');
Insert into Table1 ('DOXinM') values ('1.3');
Insert into Table2 ('Thickness') values ('0.25');
For the Table2 Insert:
for (int FilterIndex = 0; FilterIndex < Database.FilterTable.FilterList.Count; FilterIndex++)
{
mySQLiteCommand.CommandText = #"" + DatabasePara.INSERTINTO_SQL + " " + DBTableFilter.Filter + "(" + DBTableFilter.Material + ", " + DBTableFilter.Thickness + ") ";
mySQLiteCommand.CommandText += #"" + DatabasePara.VALUES_SQL + " ('" + Database.FilterTable.GetFilterAt(FilterIndex).Material_Property + "', " + Database.FilterTable.GetFilterAt(FilterIndex).Thickness_Property + ");";
mySQLiteCommand.ExecuteNonQuery();
}
Now the Database inserts the first two Statements as 10.5/1.3 and the last one as 0,25
When I read out the value the first two works perfectly fine but the last one is shown without the numbers after the decimal "point".
So my question is.
Why does this happens?
(Btw I have more than 20 Decimals columns in my table and the "Thickness" is the only one with this problem)
I hope you can help me.
Thanks in Advance
Richard
What I have tried:
Tried different Values (Had the hope that it was because of the 0.25)
Tried it without the ''. But than the statement thought it had three values for two columns...

First of all, you should use parameterized queries. They will get rid of conversion problems and prevent sql injection. Most likely your issues are created by the fact, that your type of query creation calls decimal.ToString() implicitly. For certain locales, this replaces the . with a , which leads to a syntax error.
var query = "INSERT INTO yourtable COLUMNS(col1, col2, col3) VALUES(#p1, #p2, #p3)";
var cmd = new SQLiteCommand(query, connection);
cmd.Parameters.AddWithValue("#p1", 1);
cmd.Parameters.AddWithValue("#p2", 2.2);
cmd.Parameters.AddWithValue("#p3", "three");
cmd.ExecuteNonQuery();
This will, among other things, send the decimals to your server in a correct format, and also take care of possible ' quotes in your string literals and prevent sql injection, thus making your code more secure.

graphing non sequential data C# and mysql

I'm trying to display in a graph (Winforms/C#) the total amount from one column vs unit of time (in this case month) - so it would be a amount vs time graph. The problem is that the user would like the freedom of lets say - choosing the totals for January and June and compare them in a single graph (so the total for the month of January would be represented as a bar next to June's total's bar). I already capture the selected months (also, I have the graph control on the for) within a list but where I am really stuck is to build the mysql statement and its something like this
selectdataforGraph = "SELECT SUM(Amount_Net) AS Total FROM testingproject.incomeinformation WHERE date";
foreach (int month in selectedMonth) {
selectdataforGraph += "between '" + selected_year+ "-" + month +
"'-1 AND '" + selected_year + "-"+month+ "-31' AND";
}
I know it has some space missing and some quotation mark problems - already ran the query and I figured as much but I don't think the in-between would work because I don't know how to AND the next part of it so if a user picks May then August would be between 2007-5-01 and 2007-5-30 AND 2007-8-01 and 2007-8-30???

EDIT: didn't seem MySQL was your DB...
Definitely use a parameterized query! However... to fit in with what you have and so you can test it quickly...
I think I would use DATEPART rather than BETWEEN....
var selectdataforGraph = "SELECT SUM(Amount_Net) AS Total FROM testingproject.incomeinformation WHERE ";
var monthList = string.Join(",", selectedMonth);
selectdataforGraph += " YEAR(date) = " + selected_year;
selectdataforGraph += " AND MONTH(date) in (" + monthList + ")";

Greater than is not working in CAML query

I want to retrieve records which the users are active n last modified date is greater than lastrun date, i wrote the following CAML but doesnt seem like working. Any help is much appreciated.
camlQuery.ViewXml
= "<View><Query><Where><And><Eq><FieldRef Name='Active'/>"
+ "<Value Type='Boolean'> " + 1 + "</Value></Eq><Gt>"
+ "<FieldRef Name='_DCDateModified'/><Value Type='DateTime'>"
+ lastUpdate + "</Value></Gt></And></Where></Query></View>";

I suppose it could be a Date formatting issue. You could attempt to:
1) explicit exclude of Time portion of DateTime
2) convert in advance your Date
like this:
...<Value IncludeTimeValue='False' Type='DateTime'>" + SPUtility.CreateISO8601DateTimeFromSystemDateTime(lastUpdate) +"</Value>

MS Access statement for selecting data within selected date

I need a statement to select data from an MS Access database table.
WITHIN selected dates
I have two textboxes in my GUI called StartDate and EndDate
I want to select data within those 2 dates.
I have tried 2 methods.
The first is
" DAY(V.RegDate) between " + Start.ToString("dd")
+ " and " + End.ToString("dd");
" and MONTH(V.RegDate) between " + Start.ToString("MM") + " and "
+ End.ToString("MM");
" and YEAR(V.RegDate) between " + Start.ToString("yyyy") + " and "
+ End.ToString("yyyy");
V.RegDate is the date column from the database.
But it returns me no data when I select 01/08/2010 and 01/09/2010 while there is some data at 25/08/2010.
I think that is because I chose the date separately and since the 2 dates are the same,
returns me nothing
I have tried another way...
" V.RegDate between #" + Start.ToString("dd/MM/yyyy") + "# and #" _
+ End.ToString("dd/MM/yyyy") + "#";
This also return me nothing
Any Ideas????

This pattern works for me:
SELECT sometable.somedate
FROM sometable
WHERE (((sometable.somedate) Between #2/1/2010# And #4/1/2010#));
(in this case it's MDY, I normally prefer ISO-ish style - YYYY/MM/DD because there is no way that Access can screw that up)
Maybe you've got your date set using the American default - MDY instead of the British(?) standard DMY.