I'm working on an MVC 2 website, with LINQ. I have the following section to handle updating my Photo object.
[Code]....
In this case, only the field Title changes. But I'm wondering why the WHERE clause isnot simply WHERE PhotoId = @p0... because PhotoId is the primary key. Is there anything I need to do when mapping or something to get the WHERE clause that I expect?
I've a common function as shown below:
[Code]....
[Code]....
When I want to update records in a table, I usually invoke as shwon below:
[Code]....
This code works fine. But when I'm trying to update multiple records using IN clause, it does not work. Can any one tell me how to do it using IN clause?
I need to update all vendors available in lstVendorId to status 4. I tried below but it does not work.
[Code]....
The above code does not throw any error but it does not update any records either.
I've already spent hours in searching through the forum to be able to do the following:I have a SQL datasource defined with a checkbox in it. Purpose is to update one column (userid) behind the table for only that row when the checkbox is selected.This is the code I'm currently having:
[Code]....
I am using Linq to SQL. Tables have timestamp columns and I am using regular Linq methodology in ASP.NET MVC.I do use detached entities and always try to do updates without first querying the database for the original entity. To update an entity I use context.Attach(entity, true) followed by context.SubmitChanges() and all is fine. The sql statement that gets executed looks like:
[Code]...
I have the following code:
CustomerService service;
public CustomerService Service
{
get
{
if (this.service == null)
{
this.service = new CustomerService();
}
return this.service;
}
}
public DataTable GetCustomers()
{
return this.Service.GetCustomers();
}
Now the question is: if I wrote the above method as follow (without "this"), it's giving me an error : instance is not reference to an object.
public DataTable GetCustomers()
{
return Service.GetCustomers(); // this will spell the error "instance is not reference to an object"
}
Does anyone know? also it only happens while running via IIS and not from casini web server (VS 2010).
is it possible to use OFTYPE in where clause of an entitydatasource? I mean something like this:
srcUsers.Where = "OFTYPE(Doctor)";
I have a query with group-by clause. I want to use it in recusionCTE.How is it possible?I want to know the totalamount for each fname done through this query:select top 10 fname,SUM(totamt) as 'Total Amount' from tables_list group by fname order by 'Total Amount' descBut when any person logins he must be able to see this list for his own hierarchy down the line including himself.
View 2 Replieswhy use where condition before select statement in LINQ
View 2 Replieshow do you convert the WHERE clause of this statement to Linq ?
View 1 Replieshow to use dynamically SQL Where Clause
[Code]....
I'm working on asp.net web application & for this use MS access for back end, My Query is given below which is successfully executed on MS Access but error on front end ("Syntax Error in FROM Clause")
select USER.EMPID as EMPID,USER.FULLNAME as FULLNAME,
USER.USERNAME as USERNAME,Employee.ROLEID,ROLE.ROLENAME AS ROLE
FROM USER
inner join employee on user.userid=employee.userid
inner join role on employee.roleid=role.roleid
WHERE USER.EMAIL='admin@itiersolutions.com'
AND USER.PASSWORD='cZdqAEeDV2EVzA1JNFJ6hQ=='
AND USER.STATUS='Enable'
I am using EF 4 and EntityDataSource in a Page (WebForms).
This page contains a DropDownList that display UserName.
Data from this DropDownList it is from "aspnet_Users".
At the moment I am using a single EntityDataSource code belove:
<asp:EntityDataSource ID="EntityDataSourceListUsers" runat="server" ConnectionString="name=CmsConnectionStringEntityDataModel"
DefaultContainerName="CmsConnectionStringEntityDataModel" EnableFlattening="False"
EntitySetName="aspnet_Users" Select="it.[UserId], it.[UserName]">
</asp:EntityDataSource>
I need to FILTER the UserName associated to a specific ROLE and displaying it in the DropDownList therefore using others tables"aspnet_UsersInRoles" and "aspnet_Roles".
How to do it?
Would be great have a simple solution since I am a beginner.
I have a textbox and a button on a form.
I wish to run a query (in Vb.Net) that will produce a query with the IN Values.
Below is an example of my code
myConnection = New SqlConnection("Data Source=sqldb;Initial Catalog=Rec;Integrated Security=True")
myConnection.Open()
myCommand = New SqlCommand("UPDATE dbo.Recordings SET Status = 0 where RecID in ('" & txtRecID.Text & "') ", myConnection)
ra = myCommand.ExecuteNonQuery()
myConnection.Close()
MsgBox("Done!", _
MsgBoxStyle.Information, "Done")
When i enter a single value it works but when i enter values with commas it throws an error
"Conversion failed when converting the varchar value '1234,4567' to data type int."
I'm trying to pass the value string.empty to a parameter for a repeater but it does not work, here is code:
Code:
protected void Page_Load(object sender, EventArgs e)
{
EnableViewState = false;
string fromdate = (string)Session["thefromdate"];
string todate = (string)Session["thetodate"];
if ((string)Session["selectedserver"] == "All Servers")
[Code] ....
Thats the gyst of the onload code that deals with my session parameters, as you can see if the session parameter is passed "all servers" it sets the lable value to string.empty (have also tried seting it to "")
Code:
asp:Repeater ID="Repeater1" runat="server" DataSourceID="reoeaterappresuts">
<itemtemplate>
<b><u>Servername:</u> <%# DataBinder.Eval(Container.DataItem, "Servername") %>
<u>Date of check:</u> <%# DataBinder.Eval(Container.DataItem, "Checkdate") %>
<a href="/appdrilldown.aspx?entryid=<%# DataBinder.Eval(Container.DataItem, "EntryID") %>">
[Code] ....
And the front end repeater stuff, Why can i not pass across "where x like '%%'
It picks up the parameters from the labels on the page set onload....
I get a message - "Function without an 'As' clause" for HMAC_MD5 and "Variable declaration without an 'As' clause" for Key and Value. But the code works. But the messages still exists. Is there a way to fix this to avoid the messages?
[Code]....
I have a select statement:
cmd = new SqlCommand("select lab_key from tblorderwhere", connection);
I would like to add a where statement that pass variable to the select statement. How I can do this?
Where lab_key =ChargeFine( that is my variable)
Linq add wildcard in the where clause dynamically I have a query, i.e.
var query = from r in context.company .....
then have some business logic and based on the validation I want to add dynamically a where clause
if(a == "1")
query = query.Where(r=> r.Name = Fullname); //works!!
else if(a == "2)
query = query.Where SqlMethods.Like(r=> r.Name,"%"+Fullname+"%"); //fails to compile , the r.Name is not found..
I have created the folowing stored procedure and it is working fine... I have used OVER clause in the query written in the WITH block. Can some body provide description about working of OVER clause and why I need to use it with the ROW_NUMBER() function.
CREATE PROCEDURE SelectOrder
@PageIndex INT,
@PageSize INT
AS
BEGIN
WITH Order AS
(
SELECT ROW_NUMBER() OVER (ORDER BY OrderId DESC)
AS Row, *
FROM Orders
)
SELECT *
FROM Order
WHERE Row between (@PageIndex - 1) * @PageSize + 1 and @PageIndex*@PageSize
END
i trying following query Select
View 4 RepliesI am having difficulties using a variable in the "where" clause:
declare @shift_started as datetime
set @shift_started = (SELECT *
FROM OPENQUERY(ADS_RGWP_SERVER, 'SELECT MAX(shift_started) as shift
FROM salestkt AS STK
WHERE NOT EXISTS(SELECT *
FROM SHFTDATE AS SD
WHERE SD.shift_started = STK.shift_started)'))
SELECT *
FROM OPENQUERY(ADS_RGWP_SERVER, ' sum(case when customer_type = ''Inter-Company'' then qty_shipped_today else 0 end) as intercompany_qty,
sum(case when customer_type = ''Charge'' then qty_shipped_today else 0 end) as outside_qty
FROM salestkt
WHERE shift_started ='" & @shift_started & "' ''')
Getting error:
Incorrect syntax near ' & @shift_started & '.
In the code bdehind && syntax does not work, any ideas?
Entities ctx3 = new Entities();
var uniqueQuote = from quot in ctx3.Quotes.Include("aspnet_Users").Include("Enquiries")
where quot.Enquiries.EnquiryId == selectedEnquiryId && [code]...
Error 2 Delegate 'System.Func' does not take '1' arguments C:LocalGarageFinderLocalGarageFinderEnquiryDetail.aspx.cs 56 33 LocalGarageFinder
i am developing an application using asp.net and backend server is SQL SERVER 2005.
in my application i have 12 regions. from that 12 regions user will select any of them.
if user select 1,2,3 then i have to pass this string to IN clause
for that i have storedproc like
create procedure sp_updateDistributorContractforAllRegions (
@unitprice float,
@region varchar(50)
)
update employee set UnitPrice=@unitprice where regionid in (@region)
end
GO
here regionid datatype in employee table is INT.
from code behind i am adding the parameter as 1,2,3.when i run the query it gives the error as
Conversion failed when converting the varchar value '1,2,3' to data type int.
I'm using EntityDataSource to retrieve my items, and i want to get the items for a particular region. (items and regions has a many to many relationship, thus item has a regions navigation property). and I'm using "IN" to filter the items. tried several combinations and it kept on throwing various errors. how can i get this sorted out:
Below is My DataSource:
[code]....
can i use aggregate function in group by clause like below mentioned query (which marked in red color)
[code]....
I am trying to do an insert statement to a table from classic ASP.I tried the below:
[Code]....
But, I am getting the error as: Incorrect syntax near the keyword 'where'.How to insert data, using a where clause in the above scenario?