datasource

What Statistics Framework / Tools use with data from different sources

I got many datasources (postgres database, logfiles) containing statistic data or containing data from which you can calculate statistic data. Im searching for a application where you can design new reports / outputs (graphs, tables etc) without using a programing language but using a gui. You should be able to save these queries and r...

Gridview Column width changing.

I have a gridview whose datasource is an oracle database. I want to know how to be able to change column width (in the gridview) when it is being displayed in the web browser. Thank you ...

Iphone: TabView + TableView

I think I'm missing something simple, but I can't figure out exactly what it is. I'm trying to set up an App with a UITabViewController, and one of the Tabs will have a UITableView and UISearchBar (but no Navigation Controller). I set up the UITabViewController with all the tabs in interface builder, and the views are in their own xib ...

Inserting rows into a database in ASP.NET

I am new to .NET, and I'm can't seem to figure out something that should be simple. I want to insert a row into a table, and initialize it with values that aren't bound to data controls. Specifically, I have a CreateUserWizard control on a page. In the CreatedUser method, I want to insert a row into a databse I created called "users" tha...

Is there an existing DataSource that takes its data from DataTable in ASP.NET?

I'm making an ASP.NET Web Forms application. I would like to get a DataSource which takes its data from a DataTable, and this table is persisted among requests (preferably in session, not ViewState). The idea is that there is a need for some fairly complex forms where there are several gridviews in each of them. All the gridviews have t...

Sql Compact Edition - Default connection strign

When using the AJAX login services in a winform application; if it is set to cache the credentials, where are they stored? The connection string is: Data Source = |SQL/CE| ...

BI with Django?

Is there a way to develop Bi (Business Intelligence) solutions with Django? Therefore it should be possible to define models with more than one Datasource. Is anybody out there who has experienced BI with Django? How could it work ? ...

How do I smoothly update a GridView by updating the bound DataTable in C#?

Hi, I have a GridView who's DataSource is set to a DataTable. The DataTable is updated by some backend logic every few seconds, at which point a delegate is called to refresh GridView. Currently I am simply resetting the DataSource, but that causes a problem - it interrupts any ongoing edits in the grid view and makes the selection 'ju...

DisplayMember getting reset on DataSource=null

I have a ComboBox whose items are set using the DataSource property. The DataSource is a collection of a custom object (that has a string property 'Value' and int property 'Id'). In the initialise controls, I set the DisplayMember as Value and ValueMember as Id. Now I tried to clear the DataSource by calling, myComboBox.DataSource = nu...

Odd problem with ListBox.DataSource

I'm writing a Windows application and using a Listbox control. I'm developing with Visual Studio C# 2008 Express Edition. I've got a data object that looks something like this public class RootObject { public List<SubObject> MySubObjects{ get; set;} } I've got a ListBox on my form, and also a property "MyRootObject" which, obvious...

Why DataBinding doesn't work on second time around?

The error I got when I change the datasource of BindingSource "databinding cannot find a row that is suitable for all bindings row that is suitable for all bindings" this.RemoveAllBindings(); // My work-around for the meantime bdsOrder.DataSource = _ds.Tables["orders"]; // errors here on second time around(first time i...

Make gridview datasource stay in interface not cast down to object

Hi all, I have a C# web app where I have a gridview that takes a List<> that takes an interface. There are three object types that implement the interface that are within the list. I set the gridviews datasource to the list and call databind. When I run the app I get the following error: {"Property accessor 'Name' on object 'Bailey.O...

Linq2SQL inherited types and OfType query

Hi I have a setup where I used Linq2SQL inheritance. To make queries easier, I expose the derived types in the DataContext as well, like the following: public IQueryable<Derived> Derivations { get { return Bases.OfType<Derived>(); } // filter list on type } Calling this works perfectly, and I can see the SQL being correctly genera...

Data Connection Wizard/Dialog

I'm looking to add a feature to one of my apps that allows the user to select a data source similar to how Microsoft Word mail merge does. I'm wondering if there is something out there which I could use in a commercial application. If not, any suggestions on how to roll my own (i.e., how to look at the machines data source list)? Also...

Oracle Datasource returning null connection

The oracle data source is returning null connection when the no of connection request is more. I have the implict cache enabled.The oracle specs says null is returned only is ConnectionWaitTimeout is set. I do not have a value set for ConnectionWaitTimeout in the cache properties. This is what the spec says about ConnectionWaitTimeout...

Cocoa Touch table datasource problem

I'm having some trouble with displaying results from a datasource. This code will show a different (and correct) result in the console, but results in all kinds of random crap in the simulator. ("results" is an NSMutableArray property for the class.) -(void) handleSearchForKeywords: (NSString *) keywords { [results removeAllObjects...

Use a My.Setting as Datasource for multiple ComboBoxes

Hi, I want to maintain a list of potential ComboBox values over multiple executions of my program, and to use that list as the DataSource on multiple ComboBoxes. I also want changes made to the DataSource to propagate over all of the ComboBoxes already existing in the application. Can someone recommend what type of object I should use a...

Set DataSource on controls within asp.net UserControl?

I have created my first asp.net UserControl that I will use in several places throughout my app. It contains a FormView to display fields of the record in a DataTable. It all seems fine, except, I can't figure out how to set the DataSource on the FormView that is within the UserControl. I want to set the DataSource in a method in code-b...

Bind a My.Settings StringCollection to multiple ComboBoxes

Hi, I have a set of ComboBoxes. I want to use them mostly like short data-entry TextBoxes, so I have them set to AutoCompleteMode = SuggestAppend AutoCompleteSource = ListItems DropDownStyle = DropDown What I want to do is to have each ComboBox have a common DataSource (the My.Settings StringCollection) whereby any String ad...

Creating anonymous types based on lambda expression

Hi, I'm trying to create a Fluent Interface to the Winforms Datagrid. This should allow me to use a typed datasource and easy use of properties of properties (Order.Custom.FullName) I'm adding the columns on initialization and trying to set the property to use there: dgv.With<Order>().Column("Client Name").On(x => x.Client.FullName); ...