Grid in Smart Device Please Helpe me - C# Discussion Boards

manoj_ce19-Jul-07 2:51

19-Jul-07 2:51

i have one gridview with 4 diff colums.
1. EmpID
2. Empname
3. DeprtName
4. Gender

It show normally grid when load.

But when we select EDIT then 1,2 colums are textbox and 3rd is combobox with dept name and 4th is radio button MALE & Female.

This problem I cant solve .....

Please replay .....

Thanks in Advance...

Manoj

Re: gridview with combo

kubben19-Jul-07 4:22

kubben

19-Jul-07 4:22

Use template columns. Then in the ItemTemplate you have labels and in the edit template you have text boxes combobox etc. I would guess right now you are doing simple binding which doesn't give you any option to what controls you see when you edit the row.

Ben

Re: gridview with combo

Blubbo19-Jul-07 4:39

Blubbo

19-Jul-07 4:39

Do you mean datagridview or just gridview? If gridview, then how do I get that started on my GUI? I'm trying to find documentation on this.

help me pleas

Thaer Hamael19-Jul-07 2:26

Thaer Hamael

19-Jul-07 2:26

hi all
I Wount to add DataGrid To my Mobil Application With this propertis
1- columns type combobox
2- columns type CheckBox
3- Columns type Buttun To delete the row selected by click to this button in grid this button is in evry row

thanks All
Thaer (T.h)

Thaer Rose | [Rose]

Thaer

Re: help me pleas

Eduard Keilholz19-Jul-07 2:33

Eduard Keilholz

19-Jul-07 2:33

Thanks for sharing...

.: I love it when a plan comes together :.
http://www.zonderpunt.nl

Re: help me pleas

Not Active19-Jul-07 2:35

Not Active

19-Jul-07 2:35

Help me pleas

Not until you read "How to get an answer to your question" and post the question to the appropriate forum

only two letters away from being an asset

Re: help me pleas

Eduard Keilholz19-Jul-07 2:38

Eduard Keilholz

19-Jul-07 2:38

Plus... posting your question multiple times doesn't make us more willing to help you!

.: I love it when a plan comes together :.
http://www.zonderpunt.nl

Grid in Smart Device Please Helpe me

Thaer Hamael19-Jul-07 2:26

Thaer Hamael

19-Jul-07 2:26

Thaer

C# Date functions

Branislav Vidovic19-Jul-07 2:19

Branislav Vidovic

19-Jul-07 2:19

Hi, I am hving troubles with inserting Date in my database. I have a field in my table in the databse whicih is Date/Time format. For example if I want to insert s specific date (let's say it is 19th july 2007) i need to insert 19.7.2007. Now that is not the problem. I have a string which is formated correctly. It goes as "19.7.2007". But when I insert it to database it reports error, because the dataset for that table needs a varaiable that is Date format and not a string. In visual Basic.NET i used Cdate function for converting strings in dates. What functions should I use in C#?

Re: C# Date functions

Luc Pattyn19-Jul-07 2:24

Luc Pattyn

19-Jul-07 2:24

Hi, .NET has a DateTime struct that holds both date and time information.
And that is what everyone seems to be using to insert date information into a database
(unless the field is defined as a string that is).

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Re: C# Date functions

Mike Dimmick19-Jul-07 2:38

Mike Dimmick

19-Jul-07 2:38

DateTime.Parse, DateTime.ParseExact, DateTime.TryParse, DateTime.TryParseExact.

If you know the format, prefer (Try)ParseExact. Use the Try version if you would prefer to test whether the format matches rather than getting a FormatException exception.

Stability. What an interesting concept. -- Chris Maunder

Good Looking UI Components

Sukhjinder_K19-Jul-07 2:17

Sukhjinder_K

19-Jul-07 2:17

Any Links to Beautiful Looking Controls Like Buttons, Scrollbars, Labels, etc. I've come across Aqua Buttons, Arrow Buttons, Round Buttons. I'd like a Good Looking Scrollbar and ListBox.

http://javootoo.l2fprod.com/[^]

An Excellet Site for Java's Look And Feel Classes. There has to be some for C# as well.

Thanks...

Re: Good Looking UI Components

Martin#19-Jul-07 2:36

Martin#

19-Jul-07 2:36

Hello,

Just search in the articles[^] here on CP!

All the best,

Martin

Re: Good Looking UI Components

Eduard Keilholz19-Jul-07 2:37

Eduard Keilholz

19-Jul-07 2:37

I use Infragistics[^] controls. They have very good looking GUI controls.

.: I love it when a plan comes together :.
http://www.zonderpunt.nl

ListBox with LARGE Rows

Sukhjinder_K19-Jul-07 2:15

Sukhjinder_K

19-Jul-07 2:15

Hi, I want to create a ListBox in which I can Display Data which can be easily viewed from a 10 feet distance. So I need to make my ListBox's Data Appear Large. Any Ideas. Thanks...

PS: I'm Writing a Media Center Application...

Re: ListBox with LARGE Rows

Luc Pattyn19-Jul-07 2:26

Luc Pattyn

19-Jul-07 2:26

Hi,

if your ListBox is showing text only, you can choose any font you like.

anyway, you can decide to draw the items yourself. See DrawMode property, and
MeasureItem/DrawItem events.

There also is a property making it show only an integral number of items at once.

MSDN will tell you all the details.

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Re: ListBox with LARGE Rows

Sukhjinder_K19-Jul-07 2:28

Sukhjinder_K

19-Jul-07 2:28

Thanks Luc Pattyn. Works Like a Dream...

HttpWebResponse

nasambur19-Jul-07 2:12

nasambur

19-Jul-07 2:12

Hi all,

We are developing a Load testing tool like WebLoad.
We use HttpWebRequest/Response objects to make request/response.

I want to know how much time taken to download first chunk of data after i make request.

As HttpWebRequest.GetReponse() method doesn't allow to get data in chunks..

Please help..

Thanks & Regards,
nas

Control updating is slow

Geert van Horrik19-Jul-07 2:05

Geert van Horrik

19-Jul-07 2:05

Hi all,

I have written a custom control (derived from ComboBox) which lists a lot of users (userid's). I have a splashscreen where I create an instance of my form (I have made it a singleton class) so the loading of the items from the database occurs when I first create the instance (which I can do in my splashscreen).

This all works fine, and the combox items are filled during the splashscreen. However, the real drawing (or updating) occurs when I show the form, so the users still have to wait about 10 seconds before they can actually use the form.

Is there any way I can fill the combobox so it will be usable immediately when I show the form?

Thanks!

Best regards,

-----
Geert

Need an advanced auto-update feature for your software? Try Updater!
Visit my website: http://www.catenalogic.com

Re: Control updating is slow

Martin#19-Jul-07 2:14

Martin#

19-Jul-07 2:14

Hello,

If you set the Splash as TopMost, you could Show() the Forms you want to initialize before the customer first jumps to the page.
This will have the effect, that the startup will take longer, but the first jump to the form is faster.
Hope it helps!

All the best,

Martin

Re: Control updating is slow

Geert van Horrik19-Jul-07 2:26

Geert van Horrik

19-Jul-07 2:26

Thank you for your answer. However, I don't want to show any form.

In my startup, I want to use this code:

<br />
                // Show splash screen<br />
                EASplashScreen splash = new EASplashScreen();<br />
                splash.ShowDialog();<br />
<br />
                // Run application<br />
                Application.Run(MainForm.GetInstance());<br />

The splash screen does the complete initialization such as listing plugins, getting the first instance of the mainform etc. Then, it automatically closes when it is ready.

I then want the application to be completely read (at least the mainform).

Best regards,

-----
Geert

Need an advanced auto-update feature for your software? Try Updater!
Visit my website: http://www.catenalogic.com

Re: Control updating is slow

Luc Pattyn19-Jul-07 2:31

Luc Pattyn

19-Jul-07 2:31

Hi,

when adding a lot of items to a ListBox, ListView, ... Control performance gets
improved by:
either adding several items at once (AddRange)
or (much better) to temporarily disable the visual update (with Control.SuspendLayout and Control.ResumeLayout).

A good splash screen lets the initialization proceed in the background, and disappears
when initialization is done (possibly with a minimum delay enforced, so the user can
read and enjoy the splash).

BTW obviously you must obey the "no cross-thread" rule: controls should be
manipulated only by the thread that created them.

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
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Re: Control updating is slow

Geert van Horrik19-Jul-07 2:48

Geert van Horrik

19-Jul-07 2:48

Indeed, that's why the splash screen is show first and uses a thread in the background to initialize all information.

It seems the control doesn't know any SuspendLayout function, but I already use the BeginUpdate and EndUpdate functions:

<br />
        public void ListData()<br />
        {<br />
            // Check if we have a valid connection string<br />
            if ((_connectionString == "") || DesignMode)<br />
            {<br />
                // Exit<br />
                return;<br />
            }<br />
<br />
            // Begin update<br />
            BeginUpdate();<br />
<br />
            // Clear current list<br />
            Items.Clear();<br />
<br />
            // Declare variables<br />
            MySqlConnection connection = null;<br />
            MySqlDataReader reader = null;<br />
<br />
            // Search for all patients<br />
            try<br />
            {<br />
                ... some code to get the reader ...<br />
<br />
                // Fill dataset with adapter<br />
                reader = command.ExecuteReader();<br />
            }<br />
            catch (Exception)<br />
            {<br />
            }<br />
<br />
            // Check if we have a valid reader<br />
            if (reader != null)<br />
            {<br />
                // Check if we found at least one patient<br />
                if (reader.HasRows)<br />
                {<br />
                    // Add all records<br />
                    while (reader.Read())<br />
                    {<br />
                        Items.Add(reader["primaryKey"].ToString());<br />
                    }<br />
                }<br />
<br />
                // Close reader<br />
                reader.Close();<br />
            }<br />
<br />
            // Check if we have a connection<br />
            if (connection != null)<br />
            {<br />
                // Close connection<br />
                connection.Close();<br />
            }<br />
<br />
            // End update<br />
            EndUpdate();<br />
        }<br />

Still, the code is way to slow (why doesn't the thing already draw itself when I ask it to).

-----
Geert

Need an advanced auto-update feature for your software? Try Updater!
Visit my website: http://www.catenalogic.com

Re: Control updating is slow

Martin#19-Jul-07 3:04

Martin#

19-Jul-07 3:04

Geert van Horrik wrote:
Still, the code is way to slow (why doesn't the thing already draw itself when I ask it to).

Because it's not handled if you only instanciated.
You will have to Show it (behinde the splash in your case), to create the handles!
You could Close it as soon as OnPaint is called.
So I would override Onpaint and set an init flag for the first time!

All the best,

Martin

Re: Control updating is slow

Luc Pattyn19-Jul-07 3:20

Luc Pattyn

19-Jul-07 3:20

Hi Martin,

I am not sure when and how Geert organized the initialization.
It may be OK, it may be sequential, depends on the code.
I cant tell when LoadData() gets called, I hope inside the form's
constructor.

As a consequence I am unsure what the handles got to do with it;
also you can enforce the handles to be generated by doing something
that needs them, not necessarily painting the form. So I dont feel
like fiddling with OnPaint.

My advise is to add logging with timestamps, so Geert has the
facts on which he can then proceed.

Smile | :)

Luc Pattyn

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