C#/DataSet: Create and bind a custom column/property in a DataSet`s DataTable in the XXXDataSet.cs

Posted by msfanboy on Stack Overflow See other posts from Stack Overflow or by msfanboy
Published on 2010-05-30T18:11:49Z Indexed on 2010/05/30 18:22 UTC
Read the original article Hit count: 175

Filed under:

c#

|

datatable

|

dataset

Hello,

I have a DataSet with a DataTable having the columns Number and Description.

I do not want to bind both properties to a BindingSource bound again to 2 controls.

What I want is a 3rd column in the DataTable called NumberDescription which is a composition

of Number and Description. This property is bound only to 1 control/BindingSource`s property

not 2.

There is the partial XXXDataSet.Designer.cs file and the partial XXXDataSet.cs file. Of course I have defined the public string NumberDescription {get (doing some checks here;set (doing also some checks here} in the XXXDataSet.cs file.

But all this does not bind my new property/Column to the BindingSource the DataTable is bound to because the DataSet does not know the new column/property.

To make this new property/column known I could add a new column to the DataTAble in the DataSet designer view naming it NumberDescription. At least I see know the new property in the listing of the BindingSource so I can choose it. But all that did not help??

So how do I do that stuff properly? Should I call the NumberDescription Property in the Number AND Description Property ?

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about datatable

DataView.RowFilter Vs DataTable.Select() vs DataTable.Rows.Find()

as seen on Stack Overflow - Search for 'Stack Overflow'
Considering the code below: Dataview someView = new DataView(sometable) someView.RowFilter = someFilter; if(someView.count > 0) { …. } Quite a number of articles which say Datatable.Select() is better than using DataViews, but these are prior to VS2008. Solved: The Mystery of DataView's Poor… >>> More
How to correctly filter a datatable (datatable.select)

as seen on Stack Overflow - Search for 'Stack Overflow'
Dim dt As New DataTable Dim da As New SqlDataAdapter(s, c) c.Open() If Not IsNothing(da) Then da.Fill(dt) dt.Select("GroupingID = 0") End If GridView1.DataSource = dt GridView1.DataBind() c.Close() When I call da.fill I am… >>> More
How to obtain a random sub-datatable from another data table

as seen on Developer IT - Search for 'Developer IT'
Introduction In this article, I’ll show how to get a random subset of data from a DataTable. This is useful when you already have queries that are filtered correctly but returns all the rows. Analysis I came across this situation when I wanted to display a random tag cloud. I already had the… >>> More
How can we copy the column data of one datatable to another,even if there is different column names

as seen on Stack Overflow - Search for 'Stack Overflow'
I have two datatables. First is DataTable NameAdressPhones = new DataTable(); with Three columns Name,Adress and PhoneNo.But I want only two columns Name and Adress data so I am copy those columns (with data) to the new datatable DataTable NameAdress = new DataTable(); For that I do … >>> More
Difference between DataTable.Load() and DataTable = dataSet.Tables[];

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All , I have a doubt i use the following piece of code get data from a SQLlite data base and Load it into a data table "SQLiteConnection cnn = new SQLiteConnection("Data Source=" + path); cnn.Open(); SQLiteCommand mycommand = new SQLiteCommand(cnn); string… >>> More