I would like to select some data from multiple tables and calculate a new column IN the query.In SQL it would look like: (select A, B, ((C * D) + (C * E)) as 'calc' from tab1 join tab2 on.join tab3 on.join tab4 on ...);I've tried this in linq, but it didn't work as I believe.
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How to find sum of a particular column in crystal Report?
I have a column "Price" in Crystal Report. I want to calculate the sum of all the Prices and Show in Footer of Crystal Report.
I am trying to calculate the total amount of shopping cart by multiplying the quantity with the product price and then sum up the sub results.I am doing this but it does not make the multiplication.
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decimal? TotalAmount = (from shopCart in dc.KP_ShoppingCarts
I have the following SQL:
SELECT SRFILE_1.SRCONMAE, COUNT(LBWF_1.Incidentx) AS SLAFailed,
(SELECT COUNT(Incidentx) AS Expr3
FROM LBWF AS LBWF_2) AS TotalCalls
FROM SRFILE AS SRFILE_1 INNER JOIN
LBWFAS LBWF_1 ON LBWF_1.Incidentx = SRFILE_1.SRONUMBER
WHERE (LBWF_1.KPIFailx = '1') OR
(LBWF_1.Chargex > '0.00') OR
(LBWF_1.LChargex > '0.00')
GROUP BY SRFILE_1.SRCONMAE
What I'm trying to do is divide TotalCalls by SlaFailed and * by 100 into a new variable such as Percentage. However, everytime I try to select SLAFailed or TotalCalls I receive a 'Column Names do not exist' message.
Is there any way I can reference said values?
I just want to calculate the Grand Total of the quantity. So basically i want to sum up all the quantity for each row and show the total at the bottom of the page. I don't want to use the total and the price column in this example. How can i modify this code and just sum up only the total quantity without referencing the price and the total? here is the javascript
<script type="text/javascript">
$(function () {
$("[id*=txtQuantity]").val("0");
});
$("[id*=txtQuantity]").live("change", function () {
if (isNaN(parseInt($(this).val()))) {
$(this).val('0');
} else {
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I AM STUCK IN DISPLAYING SUM OF COLUMN ITEM TEMPLATE IN THE FOOTER OF GRIDVIEW
this is how i am getting the data
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I am using below query to count a particular column data based on single condition.
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But I have to calculate for 3 more conditions. Is it possible to count based on 3 conditions(i.e. 2001 - 3000,3001 - 4000, 4001 - 5000,>5000) and I want result set for all the conditions?
I'm trying to calculate the qty x cost and put it into the itemtotal textbox of my gridview
I'm trying to do it using the textchanged event of the txtqtygv textbox. All three columns are item templates with textboxes in them.
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How to calculate Sub Total of the extended Price Column
View 3 RepliesHow to calculate sum of textbox in every column in gridview?
let say i have 3 column and 20 rows in my gridview , so how to have it total for each column..?
The above is my gridview item template, I have used this javascript for row total
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gridview row databound code behind
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The above code is getting row calaculated on key up. With the same code in need column total also. I need total of column quantity and total in their respective footer textbox.
How to calculate sum of item template rows
<asp:GridView ID="GRDMonthly" runat="server" AutoGenerateColumns="False"
CellPadding="3" Font-Names="Georgia" ForeColor="#333333"
GridLines="None" Width="400px" CellSpacing="2"
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I have 5 gridviews, all of of them have a Checkbox template field. I already did SUM of a specific column in the gridviews and displayed the Total in the gridview footers.
There is a submit button on the page as well.(this is not in a template column in the gridview)
what i do is select some rows in the gridviews by ticking the checkbox. Then I click on the submit button and the values change in the database and page refreshes with the new Total in the gridview footers. Any row that was ticked. the checkbox for that row in the gridview gets disabled. so cannot change the value again.
Now i want a way to show a popup with a SUM of those rows that are ticked recently and the SUM of already ticked and disabled rows before the values change for the ticked rows in the gridview when the submit button is clicked.
my code is calculate to current rowafter update quantity but other rows don't affect and not calculate i need to calculate all rows i think i need to use for loops but i dont know how to do it
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my gridview data is as follows
id name salary
1 raju 100
2 ramesh 150
3 mahesh 200
4 shyla 120
i need to calculate total amount = (100+150+200+120)
in my gridview i bound Duecode,DueType,DueAmount and Due Fine and also a checkbox.
Requirement
when i check one checkbox then Dues Amount is display in dueamount textbox(from database) and Duesfine is calculate and display in Duefine textbox and along with there is a Due Name "Late Fees" and DueType is "FINE" and i save "F" in database.so sum of all Dues Fine amount is calculated and show in Late fee column.it should be change if any fine amount is change.
problem
Problem is ,how can i calculate the Dues fine amount and display it in where due type is "F" column.
in which event i calculate and display it?
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In my application i want to compare data of two users from database table using linq.
lets say i have ten columns in UserMaster table.
Now based on the comparision i want to display result.
Like is 10 out of 10 columns matches for those two users result will be 100,if 9 columns matches then result will be 90 and if 0 matches thn result will be 0.
i dont want to write if else for somany time.
I am new to linq.
I am using this C# with linq to sql:
string currentLabel = from s2f in stream2FieldTypesTable
where s2f.s2fID == item.s2fID
&& (s2f.s2fLabel != item.s2fLabel || s2f.s2fIsRequired != item.s2fIsRequired)
select s2f.s2fLabel;
I am getting a compiler error saying i can't assign type System.Linq.IQueryable<string> to string.
I tried this code:
string currentLabel = from s2f in stream2FieldTypesTable
where s2f.s2fID == item.s2fID
&& (s2f.s2fLabel != item.s2fLabel || s2f.s2fIsRequired != item.s2fIsRequired)
select s2f.s2fLabel.ToString();
And that returns the same error. I'm sure this is a simple thing. what am I missing? I just want the first s2fLabel that matches the where clause.
I am trying to translate this:
SELECT IDNum, Max(Convert(varchar(20), (TimeOut - TimeIn), 108))
FROM IO_Times Group by IDNum
order by Max(Convert(varchar(20), (TimeOut - TimeIn), 108)) desc";
Into LINQ in C#. The above returns a list of the maximum value of (TimeOut-TimeIn) that corresponds to each unique IDNum (There are multiple TimeOut-TimeIn values for every IDNum).Here is what I am trying now:
from IO_Time in db.IO_Times
orderby SqlMethods.DateDiffMinute(IO_Time.TimeIn, IO_Time.TimeOut) descending
group IO_Time by IO_Time.IDNum into list
select new
{
ID = list.Key,
Time = list
});
This returns the correct IDs in the correct order, but the "list" contains everything in the database entry (which makes sense). I have also tried group by IDNum and Time, but then I get unique time entries and multiple IDs returned.I could do a foreach loop and manually sort it all out, but I would really rather not do that.
how to get column names from linq datasource?
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I got a sql table and is trying to sort the data by the column that contains the data entered in a search form.
My code is below:
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I am using Linq to read data from the database, the database has 5 coloumns.Here is the code that I am using to read from the database.
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Now, I call this method as : var retrieved_Data = objDataMgrClass.ReadData();Now comes the problem that I am facing how to read each coloumn from this var retrived_Data??? I have tried using foreach loop but i keep getting an error : foreach statement cannot operate on variables of type 'object' because 'object' does not contain a public definition for 'GetEnumerator'.The foreach loop i have used as:
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All I am trying to do is query the database, then get the returned values, so that I can do some calculations. But, I don't understand how to get the values from the database row that is returned, so that I can assign it for usage.
I would like to do something where the logic goes: for the index of [1] (which is just column 1), multiply it by 2. For the index of [2] (which is just column 2), multiply it by 3.
Example below:
This does NOT work:
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I was wondering if there is easy solution to this or I'm stuck with following:When updating DB:
dti.Pass = Crypter.Encrypt(dti.Pass);
_db.SubmitChanges();
When selecting from DB:
Data.DbTableItem dti = _db.Single(a=>a.Id == id);
dti.Pass = Crypter.Decrypt(dti.Pass);
Meaning - I am not really into writing repetitive code and this seems like logical thing to be supported by LINQ; so I'm wondering if it is.
I'm using Linq to Sql to call some stored procedures for more complex work; is there any way Linq to Sql can tell me when the output columns from the stored procedure do not match the properties of my entity object? It seems that Linq to Sql tries its best to match the columns and ignores any mismatches.
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