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Re: ListView.SelectedIndexChanged fired too much

Luc Pattyn5-Apr-08 4:47

Luc Pattyn

5-Apr-08 4:47

Unfortunately a lot of methods in System.DWIM throw a NotImplementedException. Big Grin | :-D

Luc Pattyn [Forum Guidelines] [My Articles]

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Re: ListView.SelectedIndexChanged fired too much

C-Scharbe6-Apr-08 22:26

C-Scharbe

6-Apr-08 22:26

So there is minimum a
throw new Exception("The method or operation is not implemented.");
implemented Smile | :)

Re: ListView.SelectedIndexChanged fired too much

C-Scharbe6-Apr-08 22:24

C-Scharbe

6-Apr-08 22:24

What is DWIM?
Tell me more Smile | :)

Or send me a link....

Re: ListView.SelectedIndexChanged fired too much

mav.northwind7-Apr-08 7:52

mav.northwind

7-Apr-08 7:52

Here's[^] the documentation for the namespace...

Regards,
mav

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

Re: ListView.SelectedIndexChanged fired too much

C-Scharbe16-Apr-08 4:20

C-Scharbe

16-Apr-08 4:20

Does anyone have an idea, to solve this problem??

How to bind a list to a combobox

baranils4-Apr-08 5:21

baranils

4-Apr-08 5:21

Hello

I'm trying to bind a list to a combobow but without effective result

    class Rue<br />
    {<br />
      public int Id;<br />
      public string Nom;<br />
    };<br />
<br />
    List<Rue> Rues = new List<Rue>();

Then I'm trying to fill and bind that list to a Combo

<br />
      Rues.Clear();<br />
      readRues("1000",Rues);<br />
      cmb_rues.DataSource = Rues;<br />
      cmb_rues.DisplayMember = Rues[0].Nom;

The Combo displays things but not what I expect
It shows

App.Form+Rue
App.Form+Rue
App.Form+Rue
etc..

Thanks for any help !

Re: How to bind a list to a combobox

C-Scharbe4-Apr-08 5:39

C-Scharbe

4-Apr-08 5:39

I think you need to write:

cmb_rues.DataSource = Rues;<br />
cmb_rues.DisplayMember = "Nom";<br />
cmb_rues.ValueMember = "Id";

Re: How to bind a list to a combobox

baranils4-Apr-08 5:59

baranils

4-Apr-08 5:59

Hello

I've try it too !!
Same result BUT
If I declare the ValueMember I got a message cannot bind to the new displaymember

Re: How to bind a list to a combobox

C-Scharbe4-Apr-08 6:04

C-Scharbe

4-Apr-08 6:04

Try this:

class Rue<br />
{<br />
        public int Id;<br />
        public string Nom;<br />
<br />
        public override string ToString()<br />
        {<br />
            return Nom;<br />
        }<br />
};

Re: How to bind a list to a combobox

baranils4-Apr-08 6:20

baranils

4-Apr-08 6:20

Thank you

It works indeed !

But I really do not understand why and how ?
I'm old to C but new to csharp and oop

Re: How to bind a list to a combobox

C-Scharbe4-Apr-08 6:37

C-Scharbe

4-Apr-08 6:37

The combobox run ToString() for each item.
If you have a class, that does not override the ToString() method, it returns the name of the class- type.

I guess you don't need to run cmb_rues.DisplayMember = ... ??

Re: How to bind a list to a combobox

baranils4-Apr-08 6:54

baranils

4-Apr-08 6:54

I understand better now

Thank you !

Re: How to bind a list to a combobox

CodingYoshi5-Apr-08 7:25

CodingYoshi

5-Apr-08 7:25

Create properties for your members and let the display member be a property. It should work.

Let me know if it doesn't.

Re: How to bind a list to a combobox

baranils5-Apr-08 7:56

baranils

5-Apr-08 7:56

Thank you

It works !

How to programmatically change text to underlined style in RichTextBox?

SeeBees4-Apr-08 4:32

SeeBees

4-Apr-08 4:32

Can anybody help me in this? thank you in advance.

Re: How to programmatically change text to underlined style in RichTextBox?

Luc Pattyn4-Apr-08 6:00

Luc Pattyn

4-Apr-08 6:00

Hi,

this is a two-step process:
1. select the text that needs special handling; you can do that interactively, or programmatically; while it already is in place, or while adding.
2. choose a new font for the selected text (RichTextBox.SelectionFont Property) and use
FontStyle.Underline for it.

For all the details, read up on the RichTextBox and Font classes.
Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: How to programmatically change text to underlined style in RichTextBox?

SeeBees4-Apr-08 16:03

SeeBees

4-Apr-08 16:03

Thanks.
Well there's a problem. What if my selection includes multiple fonts? RichTextBox.SelectionFont Property returns null in that case. How can I underline my selection without changing the original fonts?

Re: How to programmatically change text to underlined style in RichTextBox?

Luc Pattyn4-Apr-08 16:34

Luc Pattyn

4-Apr-08 16:34

Hi,

if multiple styles are selected, the selection has to be split up into homogeneous
parts; select and underline each part in turn; then restore the original selection.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: How to programmatically change text to underlined style in RichTextBox?

SeeBees5-Apr-08 0:21

SeeBees

5-Apr-08 0:21

Thank you. Big Grin | :-D

Your suggestion worked. I splitted my multi-font-selection into several homogeneous parts, selected each part and underlined them one after another. Finally I restored the original selection.

However, as I try out the program, it flickers.

Re: How to programmatically change text to underlined style in RichTextBox?

Luc Pattyn5-Apr-08 2:23

Luc Pattyn

5-Apr-08 2:23

SeeBees wrote:
it flickers

sure, all Controls basically have that problem, and the more data they hold and the more
operations you perform on them, the more it shows.

Here are some suggestions to reduce the flickering, you pick and choose:
- optimize your code; tha faster it runs the less you will notice it;
- try using SuspendLayout() and ResumeLayout(); I'm not sure how well it helps with an RTB;
- difficult: get the Rtf property, operate on it (that's string operations now, not very
elegant), and when done, store it again
- alternative: have a second RTB, not visible, copy the Rtf from the first to the second,
operate on the second RTB, then copy back the Rtf. This should work nicely.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: How to programmatically change text to underlined style in RichTextBox?

SeeBees8-Apr-08 22:31

SeeBees

8-Apr-08 22:31

Thanks for all the suggestions you give!!!

Re: How to programmatically change text to underlined style in RichTextBox?

mav.northwind5-Apr-08 4:21

mav.northwind

5-Apr-08 4:21

Hi!
I guess this article[^] could help...

Regards,
mav

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

Re: How to programmatically change text to underlined style in RichTextBox?

SeeBees8-Apr-08 22:27

SeeBees

8-Apr-08 22:27

This one is really helpful, thank you!

Datagrid parameter

Gego Levente4-Apr-08 4:05

Gego Levente

4-Apr-08 4:05

Im using Visual Studio 2008 language C#.
I have a form with a dataGrid populated from an SQL Stored Procedure, one of the columns on the datagrid it's ButtonColumn and exactly this Buttons HeaderText I would like to use as a parameter for another Stored Procedure.
So if the button is clicked will open a New form with a Datagrid but this time the Datagrid will be populated with a new Stored Procedure which has a parameter and for Parameter value I want to use from the 1st form the ButtonColum Header text.
Is this Possibile?

Thank you

Re: Datagrid parameter

Rick van Woudenberg4-Apr-08 4:40

Rick van Woudenberg

4-Apr-08 4:40

Yes, this is possible, however somewhat tricky.
You have to use the CellContentClick Event on the DataGridViewButtonColumn.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.