ADO.NET :: How To Convert A Linq Query To A Datatable
Feb 23, 2011how to convert a linq query to a datatable
this is my query
[Code]....
how to convert a linq query to a datatable
this is my query
[Code]....
select Groupid,GroupName,onorusername from palgroup where groupid in (select distinct Groupid
View 5 RepliesIs there option to convert from Linq.IQueryable to DataTable with some sort of CopyToDataTable() function. I am trying this.
View 2 RepliesI call a stored procedure using linq. I want to convert the ISingleResult output to datatable. what can I do?
DataClassesDataContext Dac = new DataClassesDataContext();
var ExitResult = Dac.Retrieverelations(WorkshopCode);
now I'm using below code for converting but I need a better solution.
D
dataTable dt = new DataTable();
dt.Columns.Add("Id", typeof(Int64));[code]....
I have store procedure which return result set. I have used LINQ datacontext object to get the result set from this store procedure, which returns the result set in IsingleResult format.I bind this IsingleResult to my gridview.
I want to convert this IsingleResult into DataTable format so I can sort the gridview.
how convert this sql query in linq,
SELECT COUNT(AdvisorID) AS AdvisorRegisterLast2Days FROM ob_Advisor WHERE CONVERT(varchar,CreationDate,101) BETWEEN CONVERT(varchar,DATEADD(day,-4,DATEADD(day,2,GETDATE())),101) AND CONVERT(varchar,GETDATE(),101)
I would like to send json data from a HTML table to the ASP.NET code-behind and update the data in and SQL Server database. The code and JSON for the TableProductToUpdate() is below.
function UpdateProductTable() {
$.ajax({
type: "POST",
url: "Default.aspx/UpdateProductTable",
data: "{'products':" + JSON.stringify(TableProductToUpdate()) + "}",
[code]...
how to extract DataTable or DataSet from Linq Query or List. e.g I have linq query like this
MyDBpDataContext dcSp = new MyDBpDataContext();
dcSp.myProgrammSP().ToList();
I wrote an Sp which sends a Table as result and I have code which is already using DataTable So I want to convert this result in DataTable.
I am trying to run a linq query but I need the result as a datatable as I am using that to store records from different queries in the same viewstate object.The 2 versions below compile, but return an empty set. The exact error is "Value cannot be null.Parameter name: source". (and yes I have checked there is data):
MyDatabaseDataContext db = new MyDatabaseDataContext(conn);
IEnumerable<DataRow> queryProjects =
(from DataRow p in db.STREAM_PROJECTs.AsEnumerable()
[code]...
How can I convert this sql query to LINQ ?
[code]...
IEnumerable<DataRow> query = (from obj1 in objeDC.tmpPolicyRenewals.AsEnumerable()
where obj1.AgentCode == "Admin"
select new
{
obj1.Product,
obj1.PolicyNo,
obj1.Insured,
obj1.EffDate,
obj1.ExpDate,
obj1.GrossPrem,
obj1.Status
}) as IEnumerable<DataRow>;
Getting null value. whats error ?
I'm looking to translate an SQL query into linq
INNER JOIN Usrs ON
SAQ.UserId =
Usrs.UserId AND Scan.UserId =
Users.UserId
I'm not sure how to include the "AND" in the LINQ statement.
convert the code below to LINQ, converting my project to a wseb version usimg LINQ To SQL. The project contains 10 textboxes to possibly select from, but I'm only providing the first two textboxes to simplify my question.
mySQL_Statement = "SELECT IDENTIFICATION_DATA.NSC,ITEMISCD.RNC,ITEMISCD.NSC1 FROM IDENTIFICATION_DATA LEFT OUTER JOIN ITEMISCD on IDENTIFICATION_DATA.NIIN = ITEMISCD.NIIN"
If Not ((TextBox1.Text = String.Empty) And (TextBox2.Text = String.Empty) Then
mySQL_Statement = mySQL_Statement + " where "
If Not (TextBox1.Text = String.Empty) Then
mySQL_Statement = mySQL_Statement + "IDENTIFICATION_DATA.NSC IN (" + TextBox1.Text & ")"
End If
If (TextBox1.Text = String.Empty) Then
mySQL_Statement = mySQL_Statement + "isnull(IDENTIFICATION_DATA.NIIN) = FALSE"
End If
If Not (TextBox2.Text = String.Empty) Then
If astrixState = 0 Then
If Not (TextBox1.Text = String.Empty) Then
mySQL_Statement = mySQL_Statement + " AND IDENTIFICATION_DATA.NIIN IN (" + TextBox2.Text & ")"
ElseIf (TextBox1.Text = String.Empty) Then
mySQL_Statement = mySQL_Statement + " AND IDENTIFICATION_DATA.NIIN IN (" + TextBox2.Text & ")"
MsgBox(mySQL_Statement)
End If
End If
If astrixState = 1 Then
If Not (TextBox1.Text = String.Empty) Then
mySQL_Statement = mySQL_Statement + " OR IDENTIFICATION_DATA.NIIN IN (" + TextBox2.Text & ")"
Else
mySQL_Statement = mySQL_Statement + " AND IDENTIFICATION_DATA.NIIN IN (" + TextBox2.Text & ")"
End If
End If
If astrixState = 2 Then
If Not (TextBox1.Text = String.Empty) Then
mySQL_Statement = mySQL_Statement + "AND IDENTIFICATION_DATA.NIIN NOT IN (" + TextBox2.Text & ")"
Else
mySQL_Statement = mySQL_Statement + " AND IDENTIFICATION_DATA.NIIN NOT IN (" + TextBox2.Text & ")"
End If
End If
End If
I want to use "if statement" in Linq query. How can I do this situation?
For example:
if txtAge.Text=="", I will not use that in Linq Query.
else txtAge.Text!="", I will use that in Linq Query.
I am a biggner in SQL DB . but i started a complicated and painfull work in SQL SERVER 2008. the problem convert Oracle hierarchical query to SQL query. the query
SELECT DISTINCT
LEVEL LVL,
SCH.NSCHEDULE_SL,
SCH.NSCHEDULE_SL_FM,
SCH.CSHED_CNAME
FROM FA_SCHEDULES SCH
WHERE LEVEL = 1
AND NSCHEDULE_SL_FM IS NULL
AND NBRANCH_SL = 2
CONNECT BY PRIOR SCH.NSCHEDULE_SL_FM = SCH.NSCHEDULE_SL
AND NBRANCH_SL = 2
I've build a linq query.But i want a random selection so its not always ID : 1,2,3,4,5,6 How can i randomize this var? I like to bind it to a repeater.//TagCloud:
Random rand = new Random();
var tc1 = from i in JumpTide.cms.menu.GetMenuItems(32)
select new
[code]...
I am facing a big problem with simple linq query.. I am using EF 4.0..
I am trying to take all the records from a table using a linq query:
var result = context.tablename.select(x=>x);
This results in less rows than the normal sql query which is select * from tablename;
This table has more than 5 tables as child objects (foreign key relations: one to one and one to many etc)..
This result variable after executing that linq statement returns records with all child object values without doing a include statement.. I don't know is it a default behavior of EF 4.0 . I tried this statement in linqpad also..but there is no use... But interesting thing is if I do a join on the same table with another one table is working same is sql inner join and count is same..but I don't know why is it acting differently with that table only.. Is it doing inner joins with all child tables before returning the all records of that parent table?
I am writing a linq query to select a blogpost,
[code]....
The blogpost i am testing got 3 tags attached to it. The table structure is:
(table)BlogPost -> (table)BlogPostTags <- (table)Tags
So the BlogPostTags table only contains 2 fields, BlogPostID and TagID.
When i run the query above i get 3 results back. Same blogpost 3 times but with 1 tag in each. It should return 1 post with 3 tags. The problem lies in the Tags query above.
I have the code below could to rewrite from LINq to SQL to Linq to Entity.
[code].....
I'm trying to populate the slickGrid with an ajax call.
Code:
<script type="text/javascript" >
$(document).ready(function() {
var params = {};
[code]...
my function returns a datatable. But I need to convert the datatable to JSON.
i m developing a Web Application with C# (with NHibernate)
want to bind the IList with the gridview ...for that i hav to convert IList to datatable .
IMPORTANTLY my Database table that i want to pull(through Nhibernate) contains 3 foreign keys now wat to do convert ?
Possible DuplicateNET - Convert Generic Collection to DataTable
i want to convert list datatype to datatype.
wrote the function
static DataTable ListToDataTable<T>(IEnumerable<T> list)
{
var dt = new DataTable();
foreach (var info in typeof(T).GetProperties())
{
dt.Columns.Add(new DataColumn(info.Name, info.PropertyType));
[code]...
I have AspTable which is full of data
Table TableDDl = new Table(); and I have DataTable
DataTable DataTableDDl = new DataTable();
who can I put the same data from AspTable in the same place in DataTable ?
Ex...If I have "Hello" in (third row and first cell) in AspTable....Who can I put "Hello" in (Third Row and First Colum in DataTable) >>>But for add data...
I try
DataTable1.Load(Table1);
But it didn't work because it want a reader....I want the same thing but With AspTable
Dim list As List(Of DataRow) = dt.AsEnumerable().ToList()When I compile I get the error:
'AsEnumerable' is not a member of 'System.Data.DataTable'.I added Imports system.data.datatableextensions to the file..This code works when I run it on a asp.net project But when I use the same code in Website it returns the above error..Can anyone help solve this error.
I have the following Page Method that returns a datatable:
[code]....