473,387 Members | 1,812 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,387 software developers and data experts.

ComboBox in DataGrid?

I have seen several examples on how to get a combobox control into a datagrid control via code.

I am currently writing an app that will have a lot of combo columns within datagrids, so setting this through code will be extremely long-winded. I have found it much quicker to add the columns I require through the GridColumnStyles collection in the design window. When this is used, you select whether to add a text control (DataGridTextBoxColumn) or checkbox control (DataGridBoolColumn).
Is it possible to add a combo box control to this collection so I can add them graphically as this would make life much easier?


--
Cheers,
James Goodman MCSE, MCDBA
http://www.angelfire.com/sports/f1pictures
Nov 20 '05 #1
2 1226
On a related subject, I seem to be having a problem with my combo boxes in a datagrid:

I used the two public classes from (http://www.syncfusion.com/FAQ/WinFor...44c.asp#q480q). They come packaged inside a namespace, but because I just wanted to use their classes I removed the namespace assignations (Namespace DataGridTextBoxCombo)

I have since created my datagrid & added a single combo column to test it. Nothing is noted in the task list & it compiles succesfully. However when I attempt to open the form in question (which is an MDI child) the line 'Public Class frmMain' in the MDI parent form errors, stating "Object reference not set to an instance of an object."

Can anyone shed any light on this?
Am I going about this in the right way (new to .net)

--
Cheers,
James Goodman MCSE, MCDBA
http://www.angelfire.com/sports/f1pictures
Nov 20 '05 #2
On a related subject, I seem to be having a problem with my combo boxes in a datagrid:

I used the two public classes from (http://www.syncfusion.com/FAQ/WinFor...44c.asp#q480q). They come packaged inside a namespace, but because I just wanted to use their classes I removed the namespace assignations (Namespace DataGridTextBoxCombo)

I have since created my datagrid & added a single combo column to test it. Nothing is noted in the task list & it compiles succesfully. However when I attempt to open the form in question (which is an MDI child) the line 'Public Class frmMain' in the MDI parent form errors, stating "Object reference not set to an instance of an object."

Can anyone shed any light on this?
Am I going about this in the right way (new to .net)

--
Cheers,
James Goodman MCSE, MCDBA
http://www.angelfire.com/sports/f1pictures
Nov 20 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
by: Gamze | last post by:
Hi, In my vb.net windows application ,i have combobox which is populated by sqlserver database table.When i select value from combobox ,value saved in to other table of my database and i use to...
3
by: Bill C. | last post by:
Hello, I know this has been discussed a lot already because I've been searching around for information the last few weeks. I'm trying to implement a DataGridComboBoxColumn class. I've found...
2
by: john sutor | last post by:
Does anyone know how to create a combobox in a standard datagrid? I can create check boxes , but not the combobox
3
by: PeterZ | last post by:
G'day, After doing much searching and pinching bits of ideas from here there and everywhere I came up with a fairly 'clean' solution of including a comboBox into a dataGrid column. You can...
2
by: pei_world | last post by:
I want to implement a key hit with enter to dropdown a combobox that is in the datagrid. in this case I need to override its original behaviours. I found some codes from the web. Does anyone know...
3
by: TT (Tom Tempelaere) | last post by:
Hay there, I'm writing my own DataGridComboBoxColumn because .NET 1.1 does not have one (I hope .NET 2.0 supplies one). I based it on this article:...
1
by: John Doe | last post by:
Now i know how to manually add a combobox to a datagrid, but how would i handle the recordset below? ID | FirstName | LastName | Job -------------------------------- 1 |Joe | Smith |...
0
by: dbuchanan | last post by:
ComboBox databindng Problem == How the ComboBox is setup and used: My comboBox is populated by a lookup table. The ValueMember is the lookup table's Id and the DisplayMember is the text from a...
1
by: fiaolle | last post by:
Hi The first set of source code is the class for a combobox in a grid, hopefully. In the second set of code we try to use the combobox class, but the grid is empty. I don't understand how this...
4
by: JJGarcia | last post by:
Hi Everyone, I'll try to explain the process I'm following, I'm new to this so I'm triying the easy way first, probably the lasyest too! I created a new Project, drag in to it a SQLConnection,...
0
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
0
by: aa123db | last post by:
Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...
0
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.