C# Discussion Boards - CodeProject

Septimus Hedgehog6-Dec-12 11:22

6-Dec-12 11:22

The standard color dialog lets you select from a pallette of fixed colours or, if you click the define custom colors button, you can select your own variations. Now, compare this to say the BackColor of a button. that lets you select from three tabs, Custom, Web and system. If you click the Web tab you can select colours by name such Fuschia, Goldenrod, and what have you.

I'm creating a property editor for a custom control and I'd like to implement something similar. I know I could have a form in my property and have a ColorDialog on it but I like the idea of selecting colours by name which ColorDialog can't do. Does anyone know of some easier way to do this at the custom level or perhaps knows of a freeware component I could use that does.

Another way I could approach it is to run through the KnownColor enumeration and then get the colou's ARGB values and then somehow perhaps have a listbox and paint small rectangles in it with the colour and its name. I guess it's do-able but hardly convenient.

Anyone have any ideas I can investigate and research further?

"I do not have to forgive my enemies, I have had them all shot." — Ramón Maria Narváez (1800-68).
"I don't need to shoot my enemies, I don't have any." - Me (2012).

Re: ColorDialog.

Brisingr Aerowing7-Dec-12 17:12

Brisingr Aerowing

7-Dec-12 17:12

A Color Picker[^]

Hosting UITypeEditors in WinForms dropdowns[^]

And there are many more on this site, just use the search and pray to the hamsters that it works!

2.0.82.7292 SP6a

Re: ColorDialog.

Septimus Hedgehog8-Dec-12 0:05

Septimus Hedgehog

8-Dec-12 0:05

Thanks Zac. I'll download it and see if I can pull out the ColorPicker as that's what I want.

"I do not have to forgive my enemies, I have had them all shot." — Ramón Maria Narváez (1800-68).
"I don't need to shoot my enemies, I don't have any." - Me (2012).

Re: ColorDialog.

Brisingr Aerowing8-Dec-12 7:35

Brisingr Aerowing

8-Dec-12 7:35

I can upload the source to a color picker dialog I made with the control if you want me to.

2.0.82.7292 SP6a

Re: ColorDialog.

Septimus Hedgehog8-Dec-12 9:27

Septimus Hedgehog

8-Dec-12 9:27

Yes please, buddy. I'd appreciate that. Smile | :)

"I do not have to forgive my enemies, I have had them all shot." — Ramón Maria Narváez (1800-68).
"I don't need to shoot my enemies, I don't have any." - Me (2012).

Re: ColorDialog.

Brisingr Aerowing8-Dec-12 12:46

Brisingr Aerowing

8-Dec-12 12:46

Here you go![^]

The file is the ColorDialogEx.zip one.

2.0.82.7292 SP6a

Re: ColorDialog.

Septimus Hedgehog8-Dec-12 22:09

Septimus Hedgehog

8-Dec-12 22:09

Many thanks, Zac. I've downloaded it and I'll look at implementing it into the control I've been working on.

"I do not have to forgive my enemies, I have had them all shot." — Ramón Maria Narváez (1800-68).
"I don't need to shoot my enemies, I don't have any." - Me (2012).

Re: ColorDialog.

Brisingr Aerowing9-Dec-12 5:52

Brisingr Aerowing

9-Dec-12 5:52

No problem.

2.0.82.7292 SP6a

Re: ColorDialog.

Septimus Hedgehog9-Dec-12 21:35

Septimus Hedgehog

9-Dec-12 21:35

Zac, I ran into a problem which I'll explain. I downloaded the ColorDialogEx, unzipped it and loaded the solution in VS2012, compiled it, successful. There were a couple of minor warnings telling me == and != were implemented but no override for Object.Equals and Object.GetHashCode have been defined, but nothing serious.

I then created a new winform app in 2012 and I added the ColorDialogExe.dll to the General toolbox category. It added a few components. I selected the ColorPickerCombobox component and dropped it on the form. It shows correctly. I didn't change any of the properties, etc.

When I run the app it throws an exception in ImagesUtil's GetToolbarImageList. Here's an extract of the exception:

System.ArgumentException was unhandled
HResult=-2147024809
Message=Resource 'ColorPicker.Resources.popupcontainerbuttons.bmp' cannot be found in class 'resfinder'.
Source=System.Drawing
StackTrace:
at System.Drawing.Bitmap..ctor(Type type, String resource)
at ColorPicker.ImagesUtil.GetToolbarImageList(Type type, String resourceName, Size imageSize, Color transparentColor) in c:\Temp\ColorDialogEx\ColorDialogEx\Resources\Images.cs:line 13
at ColorPicker.PopupContainerImages.ImageList() in c:\Temp\ColorDialogEx\ColorDialogEx\Resources\Images.cs:line 63
at ColorPicker.PopupContainerImages.Image(eIndexes index) in c:\Temp\ColorDialogEx\ColorDialogEx\Resources\Images.cs:line 68
at ColorPicker.DropdownContainer`1.OnPaint(PaintEventArgs e) in c:\Temp\ColorDialogEx\ColorDialogEx\DropdownContainerControl.cs:line 335
at System.Windows.Forms.Control.PaintTransparentBackground(PaintEventArgs e, Rectangle rectangle, Region transparentRegion)
at System.Windows.Forms.Control.PaintBackground(PaintEventArgs e, Rectangle rectangle, Color backColor, Point scrollOffset)
at System.Windows.Forms.Control.PaintBackground(PaintEventArgs e, Rectangle rectangle)

Do you think I need to do something else before I can use it?

"I do not have to forgive my enemies, I have had them all shot." — Ramón Maria Narváez (1800-68).
"I don't need to shoot my enemies, I don't have any." - Me (2012).

Re: ColorDialog.

Brisingr Aerowing10-Dec-12 6:10

Brisingr Aerowing

10-Dec-12 6:10

Let me look at it again. I thought I fixed that.

2.0.82.7292 SP6a

Re: ColorDialog.

Brisingr Aerowing10-Dec-12 6:15

Brisingr Aerowing

10-Dec-12 6:15

Fixed it. Try downloading it again. Same link as before.

I forgot to modify one of the resource finder things.

Why the original author did not use the built in resource management and basically (and incorrectly) rebuilt it is beyond me.

2.0.82.7292 SP6a

Re: ColorDialog.

Septimus Hedgehog10-Dec-12 6:21

Septimus Hedgehog

10-Dec-12 6:21

Thank you, Mr. Speedy Zac. I will download it and try again.

"I do not have to forgive my enemies, I have had them all shot." — Ramón Maria Narváez (1800-68).
"I don't need to shoot my enemies, I don't have any." - Me (2012).

Re: ColorDialog.

Brisingr Aerowing10-Dec-12 9:16

Brisingr Aerowing

10-Dec-12 9:16

That's a first. I usually am called 'Slow' by people because I like to think things through before trying them. It usually works out better that way.

2.0.82.7292 SP6a

DbConnectionBuilder and class question

Darkmatter56-Dec-12 8:21

Darkmatter5

6-Dec-12 8:21

Here is my code:

class dbLocalDB : DataManager
{
  private System.Data.Common.DbConnectionStringBuilder BldrLocalDB = new System.Data.Common.DbConnectionStringBuilder();
 
  public System.Data.Common.DbConnectionStringBuilder ConnectionString
  {
    get { return BldrLocalDB; }
    set
    {
      BldrLocalDB.ConnectionString = XenoManager.Properties.Settings.Default.csLocalDB;
    }
  }
}

public partial class Form1 : Form
{
  dbLocalDB LocalDB = new dbLocalDB();
  
  public Form1()
  {
    InitializeComponent();
    
    //Populate textboxes
    try
    {
      tb_LocalDBServerURL.Text = LocalDB.ConnectionString["Data Source"].ToString();
      tb_LocalDBDatabase.Text = LocalDB.ConnectionString["Initial Catalog"].ToString();
      tb_LocalDBUsername.Text = LocalDB.ConnectionString["User ID"].ToString();
      tb_LocalDBPassword.Text = LocalDB.ConnectionString["Password"].ToString();
    }
    catch (Exception ex)
    {
      textBox1.Text = ex.ToString();
    }
  }
}

I get the following error "System.ArgumentException: Keyword not supported: 'Data Source'. at System.Data.Common.DbConnectionStringBuilder.get_Item(String keyword)"

I think what's happening is BldrLocalDB.ConnectionString isn't being populated. If I had:

System.Data.Common.DbConnectionStringBuilder bldrLocalDB = new System.Data.Common.DbConnectionStringBuilder();
bldrLocalDB.ConnectionString = Properties.Settings.Default.csLocalDB;

in "public partial class Form1 : Form", it'll populate, but how do I populate it in the dbLocalDB class?

Thanks!

Re: DbConnectionBuilder and class question

Eddy Vluggen6-Dec-12 14:30

Eddy Vluggen

6-Dec-12 14:30

Not every connectionstring provides a datasource[^]; what does the actual string look like?

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]
They hate us for our freedom![^]

No scrollbars when executing program on another PC [Solved]

Member 96474616-Dec-12 7:43

Member 9647461

6-Dec-12 7:43

Hi,
Ive got a Treeview with scrollable enabled. On my developing PC everything works fine. When i resize my window, the scrollbar appears.
But when I run the .exe on another PC (even when its installed by an setup installer), there are no scrollbars! I've tried on 3 different PCs. All PCs are using Windows 7 and the required .Net4 is installed. I dont know whats the problem. Everything else works Smile | :)

. Please help.

Edit: Okay, the Problem appears when i use the treeview in a SplitContainer. Is this a know issue and is there a workaround? i really need those splitcontainers.

Edit: Got it! Each Element within a splitcontainer panel has to have the dock property set to "Fill". Now it works Smile | :)

.

Any ideas?

Thanks

Re: No scrollbars when executing program on another PC

Alan N6-Dec-12 13:32

Alan N

6-Dec-12 13:32

I've done that, although it took me about 6 months to notice than anything was wrong!

Compare rows of a datagridview and remove repeated rows

GREG_DORIANcod6-Dec-12 6:12

GREG_DORIANcod

6-Dec-12 6:12

Hi there!

I am trying to compare the rows of a Datagridview and that it removes the rows that are repeated.
I think that I´m doing something wrong, need some of help!!
my mind is not clear today! (maybe x-mas holyday! Wink | ;)

)
here´s the code:

public void Compare(DataGridView grv)
{
 grv.Sort(grv.Columns[0],ListSortDirection.Ascending);
 for ( int row = 0; row < grv.Rows.Count; row++)
 {
 for ( int col = 0; col < grv.Columns.Count; col++)
 {
     int rowx=1;
     if (grv.Rows[row].Cells[col].Value != null && grv.Rows[row].Cells[col].Value.Equals(grv.Rows[rowx].Cells[col].Value))
     {
         if (col == grv.Columns.Count - 1)
         {
             grv.Rows.RemoveAt(row);
             grv.Sort(grv.Columns[0], ListSortDirection.Descending);
         }
     }
     else
     {
         grv.FirstDisplayedScrollingRowIndex = grv.RowCount - 1;
         grv.Rows[grv.RowCount - 1].Selected = true;
     }
    }
 }
}

Re: Compare rows of a datagridview and remove repeated rows

Member 96474616-Dec-12 8:30

Member 9647461

6-Dec-12 8:30

hi,

you forgot the a counter if all cols in a row are equal to the ones in rowx? in this case you would delete the row always if the last col is equal. Maybe thats it?

cu

[OptionalField] prevents deserialization [SOLVED]

Alan Balkany6-Dec-12 5:20

Alan Balkany

6-Dec-12 5:20

Hi all,

Adding an optional field to my class instantly prevents older versions from being deserialized:

[OptionalField]
public Aurigma.GraphicsMill.Bitmap origStaticImage = null;

This is baffling; optional fields are supposed to PREVENT this! The [NonSerialized] attribute produces the same behavior. I have many other optional fields in this class that have been added over the years, and they work perfectly. If I remove the field, I can again deserialize older versions.

Any suggestions how to get around this? Thanks!

====================

Solved it; an exception was being thrown in my RunAfterDeserialization method, making it appear that deserialization had failed. Doh!

"Microsoft -- Adding unnecessary complexity to your work since 1987!"

modified 6-Dec-12 11:50am.

Share datalayer in memory

RICARDOR2708746-Dec-12 5:14

RICARDOR270874

6-Dec-12 5:14

Hi thanks in advance,

I really need to know is how to expose a layer of memory data on data tables that can be updated from time to time and who are available for consultation in memory for faster access and query the database to each time.

Re: Share datalayer in memory

Eddy Vluggen6-Dec-12 5:32

Eddy Vluggen

6-Dec-12 5:32

Memory is a volatile space; loose power to the PC, you loose data.

If your database "feels" slow, I suggest you first look at the structure, rethink the indexes, partitioning. Reading data from a harddisk (not even talking SSD) is very fast, and unlikely to be the bottleneck.

If you "want" an in-memory-database, take a look at TimesTen[^].

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]
They hate us for our freedom![^]

Localize ColorDialog

David Knechtges6-Dec-12 4:28

David Knechtges

6-Dec-12 4:28

I have the need to localize the ColorDialog at runtime. I know it grabs its culture from the version of Windows running on the machine.

I have an app that I allow switching the language through its configuration and it works fine to set the strings using ResourceManager class. I would like to do something similar with the ColorDialog also.

Is there any way to do it easily? I am using C# for my app.

Re: Localize ColorDialog

Brisingr Aerowing7-Dec-12 17:23

Brisingr Aerowing

7-Dec-12 17:23

I don't think there is an easy way for doing that. What I am doing is hosting this control[^] in a custom dialog and localizing that dialog.

I am sure searching this site will bring up some more information, but I am too tired to do anything else right now.

Hope this helps!

2.0.82.7292 SP6a

How to get enum as parameter thru interface

MichCl6-Dec-12 4:00

MichCl

6-Dec-12 4:00

I have an enum definition that I wanted to put in my interface, but I'm getting a compilation error:
Mode: interfaces cannot declare types

public enum Mode
        {
            Off = 0,
            On1 = 1,
            On2 = 2
        }

and the interface has a method in it that classes implementing it must define, where I want to pass the mode as a param:

int ProcessTWrit(ref Byte[] wDat, ref Byte[] sDat, ref Byte[] dataCk, int theMode);

So, I had to put separate definitions of the enum in both my El.cs and the class that it's calling through the interface.

I have my El.cs that I have also defined the enum above and want to call the above method:

result = cr.ProcessTWrit(ref wDat, ref sDat, ref dataCk, (int)Mode.On1);

My question is, is there a way that I can put my Mode enum in the interface so that the calling class and the receiving class can pass/use the enum values, so I don't have to have multiple definitions of the enum? There doesn't seem to be any other class that it would make sense for me to put the Mode definition in. This is a factory implementation. It looks like this:

El.cs =======> iCR.cs ==========================> CR5.cs
..........calls................ ProcessTWrit()................................................................ ProcessTWrit(){}

with multiple definitions of Mode in El.cs and CR5.cs. The three classes discussed above are in separate Visual Studio projects, if it makes a difference.

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