Re: help with array of buttons - C# Discussion Boards

fjdiewornncalwe24-Jan-12 9:11

fjdiewornncalwe

24-Jan-12 9:11

C# Custom Control Featuring a Collapsible Panel[^]. A good example.
User Control articles on CP[^]
Custom Control articles on CP[^]
Walkthrough: Authoring a Composite Control with Visual C#[^]. If you want a different dotNet version, just pick it from the "Other Versions" link just under the title in the article.
C# Tutorial: A gauge control with all source code, .net 2.0[^] This is a good tutorial, but is only for dotNet 2.0.

I wasn't, now I am, then I won't be anymore.

Dean Oliver24-Jan-12 19:00

Dean Oliver

24-Jan-12 19:00

http://msdn.microsoft.com/en-us/library/6hws6h2t.aspx[^]

hope you find this link useful.

BillWoodruff25-Jan-12 3:49

BillWoodruff

25-Jan-12 3:49

If by "custom controls" you mean UserControls in WinForms, I have benefited greatly from Matthew MacDonald's excellent book "Pro .NET 2.0 Windows Forms and Custom Controls in C#"[^].

Yes, that's quite an old book now (2004), but the author goes into many details, such as defining custom design-time adornments, and complex Property Browser selection mechanisms for custom controls, in a way that I have found clearer than any material I have read since.

"Science is facts; just as houses are made of stones: so, is science made of facts. But, a pile of stones is not a house, and a collection of facts is not, necessarily, science." Henri Poincare

help with array of buttons

thechazm25-Jan-12 9:04

thechazm

25-Jan-12 9:04

Thank you all! This has been a huge help and I have the guidance I need. Thank you for taking the time helping a stranger Smile | :)

goldsoft24-Jan-12 2:51

goldsoft

24-Jan-12 2:51

hi
i need to place on my form buttons as N number

and i need that the buttons will be an array.

for example: N=5

i need to see on screen: [button1] [button2] [button3]

[button4] [button5]

how to do it on C# WinForm FW3.5

thanks in advance

modified 24-Jan-12 9:00am.

Pete O'Hanlon24-Jan-12 3:04

24-Jan-12 3:04

Assuming that you have detailed your requirements correctly, and that you can't use a list (for example), you could do it like this (in pseudocode):

declare array of size n

for count = 0, count less than n
  create a new instance of button
  set the text of the button
  add it to the parent control collection (where parent could be a form, a panel, or the like)
end for

Forgive your enemies - it messes with their heads

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

PIEBALDconsult24-Jan-12 3:57

PIEBALDconsult

24-Jan-12 3:57

Don't forget to set the Location of the Button.

I also tend to put have a Panel or GroupBox to hold such dynamic Controls to separate them from the non-dynamic items.

Dean Oliver24-Jan-12 18:47

Dean Oliver

24-Jan-12 18:47

The solution would be:

public Form1()
       {
           InitializeComponent();

           var buttons = new Button[5];
           for (int i = 1; i < buttons.Length; i++)
           {
               buttons[i] = new Button();
               buttons[i].Text = "[button" + i + "]";
               buttons[i].Location = new Point(0, 25 * i);
           }

           Controls.AddRange(buttons);
       }

obviously you would have to adjust on your formatting. but thats the general idea. hope this helped.

BillWoodruff25-Jan-12 3:54

BillWoodruff

25-Jan-12 3:54

Please note the above code would produce #4 buttons, not #5. The array element at position #0 will be undefined.

If the button's width, which you don't specify, is exactly #25, then they will be equally spaced, and not overlap; but that makes an assumption about a button's default width, which can be affected by whether 'AutoSize is 'true, and the width of the 'Text property content.

And, no, I did not down-vote your post.

best, Bill

"Science is facts; just as houses are made of stones: so, is science made of facts. But, a pile of stones is not a house, and a collection of facts is not, necessarily, science." Henri Poincare

Create an application which send forms through google docs and download results

Dean Oliver25-Jan-12 18:49

Dean Oliver

25-Jan-12 18:49

I agree with your statement. This was a rough general idea so he could get started. Not a final solution. Please bare that in mind. Thanks though.

pinifg24-Jan-12 1:37

pinifg

24-Jan-12 1:37

Hi,

simple Q,
I need to create a basic Form in google docs and send the
Form to 5000 users every month
I was wondering if it possible to send the forms through my application
and later save the results through my application as excel ?

Tanks,

Re: Create an application which send forms through google docs and download results

Pete O'Hanlon24-Jan-12 1:42

Re: Create an application which send forms through google docs and download results

24-Jan-12 1:42

It is possible. You're going to need the Google Docs Client[^] to help you though.

Forgive your enemies - it messes with their heads

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

pinifg24-Jan-12 1:52

pinifg

24-Jan-12 1:52

can i use winform application or NT (service) to retrive the Data?

Re: Create an application which send forms through google docs and download results

Pete O'Hanlon24-Jan-12 2:13

Re: Create an application which send forms through google docs and download results

24-Jan-12 2:13

Well, as the link includes a .NET client version, I'd say there was a very good chance that it would.

Forgive your enemies - it messes with their heads

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

pinifg24-Jan-12 2:14

pinifg

24-Jan-12 2:14

tanks

Re: Create an application which send forms through google docs and download results

Pete O'Hanlon24-Jan-12 2:20

How to fix the position of a scroll bar....after selecting a row in grid view in an asp.net page

24-Jan-12 2:20

No problem.

Forgive your enemies - it messes with their heads

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

rake6224-Jan-12 0:40

rake62

24-Jan-12 0:40

how to fix the position of a scroll bar....after selecting a row in grid view....suppose if i select a last row in a grid view and trying to perform an operation....the selected row should be freezed...it should not go back to the first row in that grid view...similarly how to do in a table contents...instead of gridview.. .

Re: How to fix the position of a scroll bar....after selecting a row in grid view in an asp.net page

V.24-Jan-12 3:59

24-Jan-12 3:59

This is what I did and it works:

You have a hidden control calls vertscrollpossition and a panel called panel_contents.

This is the code behind:

private void SetScrollPosition(){
	string script;
	ClientScriptManager CSManager = Page.ClientScript;
	if(!CSManager.IsOnSubmitStatementRegistered(this.GetType(),"SaveScrollPosition")){
		script = "var HiddenField = document.getElementById('" + vertscrollposition.ClientID + "');\n\r";
		script += "var ScrollElement = document.getElementById('" +	panel_contents.ClientID + "');\n\r";
		script += "HiddenField.value = ScrollElement.scrollTop;\n\r";
		CSManager.RegisterOnSubmitStatement(this.GetType(), "SaveScrollPosition",script);
	}									//end if
	if(!CSManager.IsStartupScriptRegistered(this.GetType(),"RetrieveScrollPosition")){
		script = "var HiddenField = document.getElementById('" + vertscrollposition.ClientID + "');\n\r";
		script += "var ScrollElement = document.getElementById('" + panel_contents.ClientID + "');\n\r";
		script += "if(HiddenField.value != '')\n\r";
		script += "{\n\r";
		script += "ScrollElement.scrollTop = HiddenField.value;\n\r";
		script += "}\n\r";
		CSManager.RegisterStartupScript(this.GetType(), "RetrieveScrollPosition",script, true);
	}									//end if
}

This is the aspx code:

<asp:Panel ID="panel_contents" Height="175" Width="800" runat="server" ScrollBars="Vertical" ViewStateMode="Enabled" EnableViewState="True">
</asp:Panel>
<asp:HiddenField ID="vertscrollposition" runat="server" />

Re: How to fix the position of a scroll bar....after selecting a row in grid view in an asp.net page

ZurdoDev24-Jan-12 10:56

ZurdoDev

24-Jan-12 10:56

Have you tried setting MaintainScrollPositionOnPostback="true" on your page? If that works, that would be the easiest to do.

Problem connecting to MySQL

Jassim Rahma24-Jan-12 0:03

24-Jan-12 0:03

Hi,

I am trying to connect to mySql using C# but getting this error:

Quote:
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

I have added the port thinking it could solve the issue! but still the same.. here is my connection string:

<add name="SQLdb" connectionString="server=192.168.0.1;port=3306;User Id=root;password=Mxjxaxax0x1;Persist Security Info=True;database=cure"
      providerName="MySql.Data.MySqlClient" />

please help...

Luc Pattyn24-Jan-12 0:35

Luc Pattyn

24-Jan-12 0:35

The answer is bound to be here

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Jassim Rahma24-Jan-12 5:03

24-Jan-12 5:03

Thanks BUT

now this is my connection in the App.config:

<add name="SQLdb"connectionString="server=192.168.0.1;port=3306;Uid=root;Pwd=xxxxxxxxx;database=cure;" providerName="MySql.Data.MySqlClient" />

but I am still getting:

A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

just one notes:

The same code is working if I run the application on the server itself (using IP not localhost)

Matt Meyer24-Jan-12 5:18

Matt Meyer

24-Jan-12 5:18

What happens if you try to connect to the database using a standard MySQL client? It almost looks like a firewall may be blocking your connection.

Jassim Rahma24-Jan-12 5:22

SqlConnection in encrypted file

24-Jan-12 5:22

it works when I connect using mySQL client

but the good news..

I figured out the problem...

I just address connection timeout=120

it seems like it's taking time to connect!

anyhow..

thanks...

Jassim Rahma23-Jan-12 21:44