Re: Enabling buttons at run time - C# Discussion Boards

13-Dec-09 21:34

When the z-order of the control is changed, its index in the Controls array will also change. AFAIK there is no particular event to track this. Although if you cab track that the item indices in that array has changed, you can set your child control as top most.

50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!

Change currently image?

dennis_max2713-Dec-09 20:44

13-Dec-09 20:44

First i had this:

private void pbEdit_OnMouseEnter(object sender, EventArgs e)
        {
            pbTextEdit.Image = Image.FromFile("C:/data/edit_color.gif");

}

Now I wanna use 1 function for different pictureboxes:
My code i was thinking of but didn't work Frown | :(

this.Image = Image.FromFile("C:/data/edit_color.gif");

Dennis,

dan!sh 13-Dec-09 21:00

13-Dec-09 21:00

If I understood your question correct, you need to have a single method to change images of multiple picture boxes. And that method should be the MouseEnter event handler. Right?

You can have single event handler for all the picture boxes. This way:

picBox1.MouseEnter += new EventHandler(EventHandlerName);
picBox2.MouseEnter += new EventHandler(EventHandlerName);

Same way you can do this fro others as well.

Now, in order to change the image, use the following:

PictureBox picBox = sender as PictureBox;
picBox.Image = Image.FromFile("Set file path here");

In case all the picture boxes need to show the different images, you can keep the image file path in the Tag property of the PictureBox and then use it like this:

picBox.Image = Image.FromFile(picBox.Tag.ToString());

50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!

dennis_max2713-Dec-09 21:18

13-Dec-09 21:18

Im having 10 picturesboxes that im using as button.

When im mouse over over now it is changed from image.
and when i click on that button its openeing in every 10 buttons a different window.

Have that now Smile | :)

But all 10 picatureboxes must have the same mousenter and mouseleave event.

SO i didnt't want to make 10 the same mouseenter and mouseleave events.

Is it possible in 1?

dan!sh 13-Dec-09 21:32

13-Dec-09 21:32

Offcourse it is. Did you saw the first code block I have written?

50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!

dennis_max2713-Dec-09 21:35

13-Dec-09 21:35

I've made this already:
picBox1.MouseEnter += new EventHandler(EventHandlerName);
picBox2.MouseEnter += new EventHandler(EventHandlerName);

But I must declare in the eventhandler that it is changed the only the image the one where the mouse is hovering then, not all images.

1 eventhandler where he only works with the image where it's mouseentering and mouse leaving then.

It's difficult to explain for me.

dan!sh 13-Dec-09 21:42

13-Dec-09 21:42

Did you read the second and the third code blocks?

The object sender will be the picturebox which fires the event. This means, that if you do a mouse enter on picturebox1, the sender will be picturebox1. If you do mouse enter on picturebox2, sender will be picturebox2. Now, if you cast sender to a picturebox, and change its image, it will change image of only the concerned picturebox.

50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!

Luc Pattyn13-Dec-09 22:54

Luc Pattyn

13-Dec-09 22:54

d@nish wrote:
Did you read ... ?

I like rhetorical questions. Laugh | :laugh:

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

dennis_max2715-Dec-09 20:37

backup database [modified]

15-Dec-09 20:37

Fixed the problem now. Thaks for the reply's!!

farokhian13-Dec-09 18:36

farokhian

13-Dec-09 18:36

Hi all
I use SQLEXPRESS and this is my connectionstring:

@"Data Source=.\SQLEXPRESS;AttachDbFilename=" + Application.StartupPath + "\\Data\\mydatabase.mdf;" + "Integrated Security=True;User Instance=True";

and i use sqlconnection to connect to my database.
and i execute my backup command like below:
string backup = string.Format("backup database mydatabase TO DISK= '{0}'", addr);
backup.ExecuteNonQuery();

but errormessage is :
Could not locate entry in sysdatabases for database 'mydatabase'. No entry found with that name. Make sure that the name is entered correctly.
BACKUP DATABASE is terminating abnormally.
Changed database context to 'master'.

please somebody help me.

modified on Monday, December 14, 2009 4:15 AM

dan!sh 13-Dec-09 18:58

13-Dec-09 18:58

To backup and restore restore sql server, I would say make use of classes under SQLDMO namespace. Take a look at SQLServerClass class and the BackupClass class in that namespace. They offer required methods and properties.

50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!

farokhian13-Dec-09 19:17

farokhian

13-Dec-09 19:17

thx.
I want to know what is the required command for backup and restore?
I want to add a utility to my application that when user need a backup from database or restore to one of his backup databases , my application enable to do it.

Vimalsoft(Pty) Ltd13-Dec-09 19:54

Vimalsoft(Pty) Ltd

13-Dec-09 19:54

There were previously a lot of Questions ask about this

http://www.codeproject.com/Messages/3119251/Re-back-up-sql-data-programmetically.aspx[^]

There are more just search the Forum for messages posted

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

farokhian13-Dec-09 22:15

farokhian

13-Dec-09 22:15

I use SQLEXPRESS and this is my connectionstring:

@"Data Source=.\SQLEXPRESS;AttachDbFilename=" + Application.StartupPath + "\\Data\\mydatabase.mdf;" + "Integrated Security=True;User Instance=True";

and i use sqlconnection to connect to my database.
and i execute my backup command like below:
string backup = string.Format("backup database mydatabase TO DISK= '{0}'", addr);
backup.ExecuteNonQuery();

but errormessage is :
Could not locate entry in sysdatabases for database 'mydatabase'. No entry found with that name. Make sure that the name is entered correctly.
BACKUP DATABASE is terminating abnormally.
Changed database context to 'master'.

please somebody help me.