Using autocomplete combobox properties - C# Discussion Boards

Re: find function of List

6-Mar-08 22:09

Mate, that was the least of her problems.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Sonia Gupta6-Mar-08 22:30

Sonia Gupta

6-Mar-08 22:30

Sorry Pete.....
Thanks a Lot , Smile | :)

For sorting out my problem.and one more thing , i am the luckiest one , for having discussion with the MVP Really Smile | :)

Thanks a Lot

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

Re: find function of List

Laddie6-Mar-08 22:38

Laddie

6-Mar-08 22:38

It is not MVC it is MVP's Big Grin | :-D

Thanks
Laddie

Kindly rate if the answer was helpful

Open MSI Database

ptr2void6-Mar-08 20:25

ptr2void

6-Mar-08 20:25

Does anyone know how to open a MSI Database in Visual C#.net or Visual C++.net?

Any sample code would be greatly appreciated..

Re: Open MSI Database

Christian Graus6-Mar-08 20:39

Using autocomplete combobox properties

6-Mar-08 20:39

You mean a cab file ? You need a third party library for that.

Re: Open MSI Database

leppie6-Mar-08 23:41

leppie

6-Mar-08 23:41

You can use the Orca tool in the Windows SDK. Not sure if it has an API though.

xacc.ide - now with IronScheme support
IronScheme - 1.0 alpha 2 out now

Re: Open MSI Database

mav.northwind7-Mar-08 21:22

mav.northwind

7-Mar-08 21:22

Hi!
There's a Windows Installer Object Library (COM DLL) you can use.
There's a little twist, though - somehow no class definitions are created in the RCW, only interface definitions.
So you can't create an object from the interface directly but have to use something like this (after adding the reference to %SYSTEM32%\msi.dll):

WindowsInstaller.Installer inst = (WindowsInstaller.Installer)Activator.CreateInstance(Type.GetTypeFromProgID("WindowsInstaller.Installer"));

Regards,
mav

--
Black holes are the places where God divided by 0...

baranils6-Mar-08 20:16

baranils

6-Mar-08 20:16

Hello

Im using ComboBox having as datasource a datatable result of an sql query

I'm not specialist in combobox feature and I don't realy understand the purpose of the different AutoComplete properties

Can I use them to allow the user to add some entries in the combo box ?

In other word if the entry needed by the user is not in the datasource list, how can I get a trigger to add the user entry in the list !

Warn : I'm not asking about how to programaticaly add an entry in my datasource (datatable) I can do that.
But I want to know how to get the information from the Combobox that a new entry is needed ?
Are AutoComplete feature usefull in such case ?

Is it possible to disable Tabs in TabControl?

The Cyclone6-Mar-08 19:36

The Cyclone

6-Mar-08 19:36

Hi,

I'm building an application which has 3 forms (really large input data required, huh). I have put these 3 forms in a tab control.

Now the requirement is, before filling form 1, i cannot move to form 2 & so on. So, can i disable the tab 2 & 3? I don't want to disable all group controls. It would be nice if i can stop the user from going to those tab panes. I can enable tab 2 after clicking button 'Next' which is in tab 1. Same thing i have to repeat for tab 2.

obviously, i can use 2 forms by show & hide tactic, but for some reason, it would be nice if i can use Tab control. Smile | :)

Thanx in advance...

Christian Graus6-Mar-08 19:49

6-Mar-08 19:49

There is an enabled property, but that kind of defeats the purpose of a tab control, sounds like you want a wizard, really.

N a v a n e e t h6-Mar-08 19:53

6-Mar-08 19:53

Christian Graus wrote:
There is an enabled property

I was also thinking the same, but tabpages don't have a Enabled property. Tab control do have, but it disables the whole control.

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Christian Graus6-Mar-08 20:37

6-Mar-08 20:37

OK - I wasn't sure, I meant to say, 'I think there's an enabled property'. But, I recall I've always had to remove tabs rather than disable them

The Cyclone6-Mar-08 19:58

The Cyclone

6-Mar-08 19:58

Christian Graus wrote:
There is an enabled property

There's no Enable property for individual tabs, but it is for whole tab control.

Christian Graus wrote:
sounds like you want a wizard

I don't have any idea about this 'wizard' thing... Ss it available for win app (as it is in web app)? If you mean to say 'wizard' like something, then yes, i want to do somewhat that kind of thing...

Christian Graus6-Mar-08 20:38

6-Mar-08 20:38

The obvious way to do a wizard, in either a web or windows app, is to create controls that represent the stages of the wizard, and step through which control is visible as you hit next or previous. I believe there's a wizard control built in for web apps, but a wizard for winforms done with controls is pretty easily done.

As the controls all exist on the page, they also all hold their state for when you click 'finish'

N a v a n e e t h6-Mar-08 19:51

6-Mar-08 19:51

If you need to stop user going to the second tab before finishing first tab, set a flag variable, and update it when the process finishes in the first tab. When user clicks the second tab, handle the event and check the flag value. If the process is not completed, set the SelectedIndex value to select the current tab again.

Alternatively, you can disable all the controls in tab page, but user will be able to see that tab. For that use the following code

Control cn = tabPageName as Control;
cn.Enabled = false;

Hope it helps

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The Cyclone6-Mar-08 19:54

The Cyclone

6-Mar-08 19:54

I'm currently using this 'setting a flag' option. But i thought, there may be some another option for this... so i did asked the question.

Thanx for help...

N a v a n e e t h6-Mar-08 20:03

6-Mar-08 20:03

Have you tried my second approach ? As CG said, tab control is not the appropriate control for this scenario. CP having an article on using wizards with winforms. Do a search for that.

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setting usercontrol's datasource that is same as parent form

Laddie6-Mar-08 20:34

Laddie

6-Mar-08 20:34

My one cent to this. You can group all controls in different tab panels and in individual panel controls.

Now you can use your flag to enable or disable the panels.This is the same idea navneeth said but just to ease the number of controls you need to enable or disable.

May be you can consider setting the flag to do this in the tab change event.

Thanks
Laddie

Kindly rate if the answer was helpful

saneng6-Mar-08 19:19

saneng

6-Mar-08 19:19

hi
i m newbie on C# I have created a usercontrol that has a datagridview i use this control on my parent form, the problem is that i want to set the datasource property of my usercontrol the same as my parent form so that
gridview shows the data of the datatable of parent form's dataset'
my coding is like this is it work fine

public partial class UserControl1 : UserControl
{
public DataSet ds;
public DataTable dt;

public UserControl1()
{
InitializeComponent();
}
public dataset ds
{
set
{
this.ds = value;
this.dgvSearch.datasource = ds;
}
get
{
return ds;
}
}
public DataTable dt
{
set
{
this.dt = value;
this.dgvSearch.DataMember = dt;
}
get
{
return dt;
}
}

or m missing something any sort of help will be highly appreciated
Thanks

Re: setting usercontrol's datasource that is same as parent form

N a v a n e e t h6-Mar-08 19:41

6-Mar-08 19:41

saneng wrote:
public DataSet ds;
public DataTable dt;

Make these variables to private.

saneng wrote:
public dataset ds
{
set
{
this.ds = value;
this.dgvSearch.datasource = ds;
}
get
{
return ds;
}
}

Change the name of this property as you variable and property names are same.

public Dataset ControlDataSet
{
  set
  {
    this.ds = value;
    this.dgvSearch.datasource = ds;
  }
  get
  {
    return ds;
  }
}

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List in c# [modified]

Sonia Gupta6-Mar-08 19:10

Sonia Gupta

6-Mar-08 19:10

i implemented list class in (web project).

public class person<br />
{<br />
    string name;<br />
    <br />
}<br />
public partial class fout : System.Web.UI.Page<br />
{<br />
    protected void Page_Load(object sender, EventArgs e)<br />
    {<br />
        List<person> obj = new List<person>();<br />
}<br />
}

i am getting error
The name or namespace List cannot be found
Should i add any reference ?

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

modified on Friday, March 7, 2008 1:32 AM

Re: List in c#

N a v a n e e t h6-Mar-08 19:34

6-Mar-08 19:34

You need to use System.Collections.Generic namespace.

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Re: List in c#

Sonia Gupta6-Mar-08 20:24

Sonia Gupta

6-Mar-08 20:24

ThankQ

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

Re: List in c#

Christian Graus6-Mar-08 20:47