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Re: GDI: Move Rect. using KeyDown/Up and Timer

Luc Pattyn6-Jul-07 4:09

Luc Pattyn

6-Jul-07 4:09

Hi,

I dont really see the problem; when you press a key (say 'a') it generates one
KeyDown, one KeyUp and one KeyPressed. When you keep it down for a while it
autorepeats, i.e. it generates a number of KeyPressed events (same as in a
text editor such as MS Word; I am not sure it may also repeat the KeyDown,
but not the KeyUp). That could be sufficient.

If you want a faster repeat rate, I think you must provide it yourself; this
is how I would do it:
- create method doOneKey(Keys key) that does what that key should do
(including the Invalidate !)
- create a class member: private Keys lastKeyPressed
- in KeyDown do lastKeyPressed=e.KeyCode and call doOneKey(lastKeyPressed)
- create a Forms.Timer and let it tick continuously (say 100 msec)
- in timer tick handler call doOneKey(lastKeyPressed)
- in KeyUp do lastKeyPressed=Keys.None
- dont use KeyPress

You might want to also handle LostFocus event (so the move
stops when your Form loses focus)

BTW I have choosen the Forms.Timer because that one ticks on the GUI thread,
so it can not create concurrency problems (its tick does not get handled in
the middle of a key event).

Hope this helps

Smile | :)

Luc Pattyn

[My Articles] [Forum Guidelines]

Re: GDI: Move Rect. using KeyDown/Up and Timer

oliiix6-Jul-07 4:20

oliiix

6-Jul-07 4:20

I think I just needed your last answer at least.. I'm just new to C# so I'm sometimes get confused although I should know the solution;) Thank you very very mutch!!

How to set The Break point Condition in vs.NET

Hum Dum6-Jul-07 2:20

Hum Dum

6-Jul-07 2:20

I try to set the condition for break point, but showing the error that condition is not correct.

I writr like Messageno == "ABC-001"
in condition textbox,

What is the correct way to set the condition?

Plz Guide me.

Re: How to set The Break point Condition in vs.NET

kubben6-Jul-07 2:51

kubben

6-Jul-07 2:51

There are a couple of ways you can do it. First you can set the break point in the code behind. Then if you go to your break point window you can add a condition to the break point so it will only break when your condition is met. You can also use System.Dianostics.Debugger.Break to cause your code to break point. This only works if you have compiled in a debug mode.

Hope that helps.
Ben

Dialog event

Maddie from Dartford6-Jul-07 1:59

Maddie from Dartford

6-Jul-07 1:59

Hello,
I am showing a form (MyForm) on some click event. I am having some buttons(Send, Get) on MyForm which are not mentioned as predefined event like OK or Cancel etc.

Still i want to know about the click event of the MyForm button.

I want
If(MyForm.ShowDialog() == DialogResult.Get)
{
}
How it can be implemented?????
Thanks..

Gajesh

Re: Dialog event

Pete O'Hanlon6-Jul-07 2:02

Pete O'Hanlon

6-Jul-07 2:02

Well, I would map the Get button to the OK result. Set the DialogResult for this button to OK. Then, you just need to check for DialogResult.OK.

Please visit http://www.readytogiveup.com/ and do something special today.
Deja View - the feeling that you've seen this post before.

Re: Dialog event

Martin#6-Jul-07 2:04

Martin#

6-Jul-07 2:04

You have to set the DialogResult property ycurselfe, before you close the form.

Re: Dialog event

Chintan.Desai6-Jul-07 2:13

Chintan.Desai

6-Jul-07 2:13

1st fire Send and Get button events with following code snippets:
btnSend.Click+=System.Windows.Forms.EventsArgs(...)

do same things for Get button.This will allow this event to occur.Now assign Get to Ok event of Dialog box.this will fire Get event when ok is clicked.

happy coding. Rose | [Rose]

Regards
Chintan
www.visharadsoft.com
(Nothing is so purify as KNOWLEDGE)

Need Suggestion for best Component Library for C#

logikos6-Jul-07 1:43

logikos

6-Jul-07 1:43

Hi,

Very new to C#, and to .Net for that matter (been doing mainly legacy stuff for 20 years). Well, .Net is incredible, but one thing that bums me out is that I pretty much have to trash all the 3rd party component libraries that I have invested my money in over the years and essentially start over.

I've been perusing ComponentSource.com and ran across ComponentOne Studio Enterprise (http://www.componentsource.com/products/componentone-studio-enterprise/index.html). This is coming out of my personal funds, and $899 is *ouch*, but it seems to have just about everything to get a good start.

What do you all think? Any other suggestions to get some good components without making me broke?

Thanks to you all,

J Miller

Re: Need Suggestion for best Component Library for C#

Pete O'Hanlon6-Jul-07 2:01

Pete O'Hanlon

6-Jul-07 2:01

What do you actually need the components for? While ComponentOne are good components, they cover both ASP.NET and WinForms. They also deal with reporting, grids and so on and so on.

I've tended to lean more towards DevExpress, and just picking the parts that I need rather than paying for everything. (You can also buy the components individually from ComponentOne).

For UI's, I'm currently using DevComponents. It's a very good product and Denis is continually updating it. Plus, with DevExpress and DevComponents, you can get the source code fairly inexpensively as well.

Please visit http://www.readytogiveup.com/ and do something special today.
Deja View - the feeling that you've seen this post before.

Re: Need Suggestion for best Component Library for C#

logikos6-Jul-07 2:24

logikos

6-Jul-07 2:24

Pete, thanks for the great recommendations. What they offer is fastastic!

Re: Need Suggestion for best Component Library for C#

Joseph Guadagno6-Jul-07 4:34

Joseph Guadagno

6-Jul-07 4:34

I would suggest since they are coming out of your personal funds you go with the DevExpress components. I know every once in a while they offer some of the components free, like their editor controls. DevExpress

Here are some of my articles.
Hope this helps!
Joseph Guadagno
http://www.josephguadagno.net

mouse position + map lon/lat C#

mercenary016-Jul-07 1:41

mercenary01

6-Jul-07 1:41

does C# have any function or method that I can call to get the lon and lat from some reference I have with regards to the pic and a mouse position. Hope the questions is clear...

Thanks

Samuel

Re: mouse position + map lon/lat C#

Martin#6-Jul-07 1:47

Martin#

6-Jul-07 1:47

mercenary01 wrote:
lon and lat

Re: mouse position + map lon/lat C#

mercenary016-Jul-07 1:48

mercenary01

6-Jul-07 1:48

longitude and latitude

Re: mouse position + map lon/lat C#

Christian Graus6-Jul-07 1:57

Christian Graus

6-Jul-07 1:57

No, how could it ? It would need to know the starting position and the scale of the image. Even then, not all map images will have steady change of lat/lng.

You need to write your own code, based on what you know about the image you're displaying.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: mouse position + map lon/lat C#

mercenary016-Jul-07 2:00

mercenary01

6-Jul-07 2:00

man...that is what I thought, its tough

Re: mouse position + map lon/lat C#

Christian Graus6-Jul-07 2:07

Christian Graus

6-Jul-07 2:07

Yeah, it's always nicer to find stuff is supported for you, but in this case, I don't see any way it could take a bitmap and give lat/lng, and it should be pretty easy to work out, just find out the co-ords for the corners of your bitmap and do the math to track the rate of change to the mouse.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

How to sort images in column of datagridview

goldenchance6-Jul-07 0:49

goldenchance

6-Jul-07 0:49

Dear all,

I am making a window form and using 1 datagridview control on it. The datagridview itself supports auto sort, but it is only valid with all column type except image column.
Please give me your all solutions on this issue.
Thanks.

Banana

Re: How to sort images in column of datagridview

Chintan.Desai6-Jul-07 2:20

Chintan.Desai

6-Jul-07 2:20

from where you are retriving image name.Regardless of any source(s).Just do one thing might it work.Take all the image name(hope all r unique) and store them in array list.Now sort the list and store all column base on image name.

Regards
Chintan
www.visharadsoft.com
(Nothing is so purify as KNOWLEDGE)

Re: How to sort images in column of datagridview

goldenchance6-Jul-07 3:14

goldenchance

6-Jul-07 3:14

Thanks Chintan.Desai for your reply.

My problem is really that when my datagridview load all data completely, click on each column, except image column, and every things are ok. But when i click on image column, it is not active.
If I put all my data in array list and each column use 1 array list, we will have many array lists. This is quite difficult for managing code.

Please send me your all other suggestions

Thanks for all help.

Banana

Re: How to sort images in column of datagridview

Chintan.Desai8-Jul-07 20:43

Chintan.Desai

8-Jul-07 20:43

No buddy,Arraylist is one type of container,so store every image name in that arraylist and then use Sort function from array list class and sort them.

Regards
Chintan
www.visharadsoft.com
(Nothing is so purify as KNOWLEDGE)

Re: How to sort images in column of datagridview

goldenchance8-Jul-07 21:12

goldenchance

8-Jul-07 21:12

Thanks Chintan for your warm and kind help.

I solved my problem by using IComparer interface. I have a object and image is one of its many properties, I wrote a lass for compare to object, and property used for compare is the image type (each product have 1 image type).And the last, I create an array list and sort all this array follows my new class which implements from IComparer.

<br />
public enum SortDirection<br />
    {<br />
        Ascending,<br />
        Descending<br />
    }<br />
    class ElementSorting : IComparer<br />
    {<br />
<br />
        private SortDirection m_direction = SortDirection.Ascending;<br />
<br />
        public ElementSorting() : base() { }<br />
<br />
        public ElementSorting(SortDirection direction)<br />
        {<br />
            this.m_direction = direction;<br />
        }<br />
<br />
        int IComparer.Compare(object x, object y)<br />
        {<br />
<br />
            ABCElement elementX = (ABCElement)x;<br />
            ABCElement elementY = (ABCElement)y;<br />
<br />
            if (elementX == null && elementY == null)<br />
            {<br />
                return 0;<br />
            }<br />
            else if (elementX == null && elementY != null)<br />
            {<br />
                return (this.m_direction == SortDirection.Ascending) ? -1 : 1;<br />
            }<br />
            else if (elementX != null && elementY == null)<br />
            {<br />
                return (this.m_direction == SortDirection.Ascending) ? 1 : -1;<br />
            }<br />
            else<br />
            {<br />
                return (this.m_direction == SortDirection.Ascending) ?<br />
                 elementX.Type.CompareTo(elementY.Type) :<br />
                 elementY.Type.CompareTo(elementX.Type);<br />
            }<br />
        }<br />
    }<br />

Thanks

Banana

DataGridViewControl

sangramkp6-Jul-07 0:40

sangramkp

6-Jul-07 0:40

I generated columns and rows in a datagrid. when I click a button while the radiobutton is checked i was able to convert the cell backcolor.

My requirement is when i clicked the cell its rowindex, columnindex will get added to a listbox. which later will stored. My code snippet looks like this

private void dgv1_CellClick(object sender, DataGridViewCellEventArgs e)
{
foreach (DataGridViewRow row in dgv1.Rows)
{
if (radioButton1.Checked == true)
{
row.DataGridView.CurrentCell.Style.BackColor = Color.Black;
//Try to add the cell index to listbox collection item
//listBox1.Items.Add(row.DataGridView.CurrentCell.RowIndex);//it stores the index total row no. times
//listBox1.Items.Add(row.DataGridView.CurrentCellAddress);//need to reduce it to only one
}

help me.

Rose | [Rose]

How to make data from one form available to another

I.explore.code6-Jul-07 0:38

I.explore.code

6-Jul-07 0:38

hi,
I have two forms Form1 and Form2. On Form1 i have a data grid that has a data in 3 columns, now on button click i want to send data of first row to Form2 that has 3 textboxes, so that the text boxes have the corresponding values (for eg Name,City,Country). I tried to make 3 public properties and assign the values of the grid cells to them and then tried to call these properties on FOrm2 to populate the text boxes, but they show up empty, because to be able to access Form1's property, i need to declare and initialise Form1's instance, so each time a new instance is created, the property would contain null values.Please help

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