DataSource Controls :: Iqueryable Get Most Recently Updated?
Feb 2, 2010
I have a Iqueryable problem
<%= Article.Replies.OrderBy(r => r.Created).First().Member.Username %>
I want to get the most recent Replies that is part of the Article
"Article.Replies" gets all the replies
So now I want to Order by Replies.Created by descending And then just take the first one from which i can get the members username fine. Im having a syntax problem with doing the orderby descending and by picking the first.
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Sep 2, 2010
i need to create 2 temporary tables.The records inserted into the 2nd table is the same as that from table1.
Now, i am inserting some other records into table 2.what i need is, to retrieve the count of the recently added records into table2.How to achieve this?
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May 18, 2010
How do I select multiple columns into IQueryable<Employee>?
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May 26, 2010
I am using System.Linq.Dynamic to create the following query at runtime:
[Code]....
I can then successfully display vMediaQ in a GridView.But I need to be able to access the individual fields (column headers and data) in vMediaQ, which is of type System.Linq.IQueryable.
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Aug 4, 2010
I have a query that joins two tables (in Linq) so I usethe result as an Iqueryable. I want the Query result to be displayed in a gridview, but for some reason I see nothing on the gridview.(I also tried without the join and just using the IQueryable result -and still nothing)
[Code]....
why is doesn't work, or link me to an examlple that is similar - (Also is there another way to use the result of a "join" not as IQueryable)
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Mar 19, 2010
I have dataset which is called at page load event. Also every time i clicked on refresh it will call refresh function where it store updated values from database.
Now I want only updated fields row and want to store into datatable or another dataset.
I dont want to cmp each and every iteration of the dataset. I used Getchanges() of dataset but not working.
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Apr 26, 2010
i have a vb.net application that contains and MDF file that holds 2 tables, when i execute an SQL update command it executes fine and the data are updated only in cache, so when i clean my solution the updated data disappears ( database gets back to its original state ) and does not actullay commit in the tables.
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Oct 21, 2010
have detailsview
<asp:DetailsView
ID="dtlviewRecommendation" DataSourceID="LinqDataSourceRecommendation"
DataKeyNames="PK_TT_RecommendationsSysId">
[code]...
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Mar 18, 2010
We have a SQL agent job tied to an SSIS package that process does an Update process on the dimensions and a full process on the Facts. In the morning the cube is showing that it is processed but the new data is not present. When it is manually run the SSIS package, it seems to work fine. Basically there is job having two steps, one is to update the BI Cube and next step is to update dimensions and facts. This jobs runs perfectly without any error, but first step executes as per the expectation and second fails to update with latest data. If we try to manually run the SSIS Package of the second step it perfectly updates with the latest data.
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Feb 22, 2010
A ListBox is being filled from the database, from a SQLDataSource. Im setting the parameters in its _Selecting event. Except when it is done getting its new Data, the ListBox isn't updated with this new data. Eventhough i rebind my ListBox to the DataSource.
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Feb 9, 2010
Is there a way I can automatically update a 'Date' column in my database table to the current date whenever any cell in that record is updated?I've started looking into table triggers a little bit and I'm wondering whether I can do it using this?
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Jul 10, 2010
I am having a table named Invoices.From that table I want everything the newly inserted and updated rows from that table.
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Jan 27, 2010
I'm trying (poorly I might add) to set up a select statement and due to my noobishness I simply have not found a way to do it RIGHT. Then again - I'm probably starting entirely wrong - but I've gotta' learn somewhere.I'm attempting to track product usage (think mild inventory tracking). In the system, I have independent parts and builds (combination of independent parts) - each has its own SQL table. Each time a "build" is completed, I want to update my part inventory with an updated count of that item.
Build_tbl
Build_ID (int/spec)B_nameB_desc
Part_tbl
Part_id (int/spec)P_nameP_cost
Build_asmb_tbl
[code]...
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Jul 18, 2010
how to set the gridview page index to the recently created row,
when i add data using formview the grid view does get refreshed. but the page index returns to zero.
i would like to put some code so that the grid view page index displayed is that which contains the newly added row.
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Jul 11, 2010
I am working on a Webbased project, where we have a Master page with some child page. In the child page there is GridView control, Footer of this Gridview control have some TextBox control to get the input value from user and insert into database. Once the data is inserted into database. We are reloading the inserted data into the same Gridview control, But Gridview control is hot Binding/showing up the recently added record.
I debugged the code and seen the Dataset which is getting the data fron database have the updated row but after binding to Gridview control. The Gridview control not refreshing the data. This is happening while we have Master page and child page.
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Nov 21, 2010
Here is my code. I just wanted to update one column. Why is everything getting NULL put into it?
[Code]....
[Code]....
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Oct 23, 2010
I'm running VWD 2009 version 9.0.30729.1 SP. I tried to remove a coupldof the items in the Recent Projects list that comes up on the Start Page by deleting them from
HKEY_CURRENT_USERSoftwareMicrosoftVWDExpress9.0ProjectMRUList in the Registry. But now nothing shows up in the Recent Projects list of the Start Page except for the text below:
Open: Web Site... | Project
Create: Web Site....| Project
I've used RegEdit many times and am sure I didn't do anything stupid. I just selected a couple of values under the key and deleted them. Does anyone know what might be going on?
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Jan 28, 2011
I would like to display the list of recently accessed/visited web pages just as google chrome shows. I want to achieve this using C# and asp.net.
I am working on a site where the user can see the list of pages that they have visited, I tried using iframe but that does not work as per expectation. I am looking for a clean and intuitive interface something like google chrome.
I would like to provide a thumbnail view of the recently visited pages.
To keep my question simple, I want to display a list of urls as thumbnails, just as chrome does
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Mar 27, 2011
I am implementing paging in my GridView. From this article, I need two methods:
public IQueryable BindEmployees(int startRowIndex, int maximumRows)
{
EmployeeInfoDataContext dbEmp = new EmployeeInfoDataContext();
var query = from emp in dbEmp.Employees
join dept in dbEmp.Departments
on emp.DeptID equals dept.DeptID
select new
{
EmpID = emp.EmpID,
EmpName = emp.EmpName,
Age = emp.Age,
Address = emp.Address,
DeptName = dept.DepartmentName
};
return query.Skip(startRowIndex).Take(maximumRows);
}
And
public int GetEmployeeCount()
{
// How can I not repeat the logic above to get the count?
}
How can I get the value of the second method GetEmployeeCount from the first method BindEmployees ? I mean without repeating the logic (the query)?
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Oct 7, 2010
I'm trying to write a custom filter for Dynamic data that will allow me to run like type queries on entity columns. For example searching for john on name field to returen johnson, johns etc.
I'm trying to override the IQueryable GetQueryable(IQueryable source) method on the QueryableFilterUserControl class. To filter my results. Does anyone know the best way of achieving this?
If this were and IQueryable<T> it would be easy as I could return the results of a .Where() clause.
There is an ApplyEqualityFilter(IQueryable source, string Column.Name, object value) method on the QueryableFilterUserControl class but this performs a direct comparison.
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Aug 23, 2010
Is there option to convert from Linq.IQueryable to DataTable with some sort of CopyToDataTable() function. I am trying this.
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Feb 11, 2011
I have a series of parameters stored in rows in the database, and I'd like to return rows that satisfy both input parameters. The parameters come through in the URL, like "&msg_type=20560&status=101"
I have code that works fine, but only if there's one parameter. If there are two, it empties out the results. Here's my code:
[code]....
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Jul 4, 2010
I'm creating a repository and service layer in my app, and my repo has a very simple function
Public Function GetRegions() As IQueryable(Of Region) Implements IRegionRepository.GetRegions
Dim region = (From r In dc.Regions
Select r)
Return region.AsQueryable
End Function
Now in my Service layer I've got a function like this
Public Function GetRegionById(ByVal id As Integer) As Region Implements IRegionService.GetRegionById
Return _RegionRepository.GetRegions().Where(Function(r) r.ID = id).FirstOrDefault
End Function
But i can't figure out how to add And r.isActive = True
how to have multiple operators in this query?
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Dec 23, 2010
the problem i am having is passing in multple parameters are part of my Function(p) call... i'll explain further..
This is my interface: it might have errors further though through this is still in development..
IRepository:
[Code]....
This is my repository, inheriting the interface above
[Code]....
And finally in my code-behind i am calling the SingleEntity - this is where i must be going wrong....?
If i call it with a single parameter then it's fine.. multiple and it goes awry..
I have put comments in the section i can't seem to figure...
[Code]....
When i run the code i get the following error:
[Code]....
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Mar 3, 2011
I currently have a number of lists in my solution, here is an example
[Code]....
and then in the repository
[Code]....
how would i do the same thing with an interface and an Iqueryable rather than a class and a list?
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