Windows Forms

RangeSlider, RangeTrackBar, RangeBar, ...

2-Aug-08 7:51

The forums can help with specific questions, but we cannot think out the rest of a program or what you should do next for you.

Regards,
Thomas Stockwell

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.

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gongchengshi31-Jul-08 7:52

gongchengshi

31-Jul-08 7:52

I am looking for a good control that gives me the same functionality that can be seen at the bottom of the graph in the Google Financial website but can be used in a .Net Windows Application without running a Flash layer. I need a trackbar control that allows you to set the position of two different handles in order to create a value range.

http://finance.google.com/finance?q=INDEXDJX:.DJI%20INDEXNASDAQ:.IXIC%20INDEXSP:.INX[^]

These are the only three I have been able to find after hours of searching. The DevExpress one comes in a huge suite of controls and all I want is the RangeTrackBar control.

http://www.devexpress.com/Products/NET/Controls/WinForms/Editors/editors/rangeTrackBarControl.xml[^]

The C# RangeBar looks a little too Win95. I could work on updating the GUI elements but I would rather not.

http://www.codeproject.com/KB/selection/zzzzrangebar.aspx[^]

A good looking free possibility is the Avalon RangeSlider. I would want to change the appearance which means I would need to learn some XAML.

http://www.codeplex.com/AvalonControlsLib/Release/ProjectReleases.aspx?ReleaseId=10250[^]

Does anyone know of any other commercial or free to use controls like these? I would like a few more options before I make a decision.

Thanks!

Re: RangeSlider, RangeTrackBar, RangeBar, ...

Thomas Stockwell31-Jul-08 8:15

Re: Delete particular row.

31-Jul-08 8:15

I have not seen any controls that are as sophisticated as the google range bar. Your best solution would be to write your own code or wait for another response to this question. It is a very neat control concept though (and cool article idea).

Delete particular row.

venkat86_ece31-Jul-08 0:50

venkat86_ece

31-Jul-08 0:50

Hi,

I am using data grid in that i want to delete particular row that means selected row.
How can i done this?

Thanks in advance
Venkatesan.C

Thomas Stockwell31-Jul-08 7:23

How to lay out a form with multiple views

31-Jul-08 7:23

The following is C# code taken code for code from one of my projects.

if(this.dataGrid1.CurrentRowIndex!=-1)
{
((DataTable)this.dataGrid1.DataSource).DefaultView.Delete(this.dataGrid1.CurrentRowIndex);
((DataTable)this.dataGrid1.DataSource).AcceptChanges();
}

shultas30-Jul-08 8:51

shultas

30-Jul-08 8:51

Hello!

I am rather new to Windows Forms programming. I have made simple applications that have only one view (you launch the application, what you see on the screen is what is always there).

I am trying to get into some more advanced programming. I currently have a tab control with several tabs. On one of the tabs, the left hand side has a TreeView that is docked to the left. As the user clicks on items in the treeview, I want to display some information on the right hand portion of the screen about the item that they have selected.

What I am trying to do is figure out how to use the Windows Designer in order to design multiple views, and swap them in and out at runtime. (ie, if the user clicks on a Customer in the tree view, the right hand side would display information about that customer. If they click an office location under that customer in the treeview, I want to display a completely different set of group boxes, buttons, etc on the right hand side) (Kind of exactly what a tab control does, but without the tab control!)

I can place all of the controls on the right hand side, or on a panel, and make them visible and invisible at runtime, or I could always programatically create the controls on the fly --- but it is very hard for me to visualize it and make it look proper.

I am wondering what ways you all use in order to design a more complex application like this. I have been reading and cannot seem to find the proper "keywords" to point me in the right direction. Any help would be incredibly appreciated!!

Thanks in advance!

led mike30-Jul-08 9:17

30-Jul-08 9:17

I normally create each "View" as UserControl. That makes it simple to create more complex views but set only a single controls Visible state. You can also see it in designer mode without all the clutter of a panel embedded in a splitter on a main form.

Not sure that's what you were asking about.

led mike

shultas30-Jul-08 9:40

shultas

30-Jul-08 9:40

I just spent some time reading about the UserControls class, this does look like it would work for what I am trying to do. My question is, how would I go about designing it in Designer Mode? It'd be great if you could design multiple panels "off canvas" or off the application, put all your controls on them, make them look good, and then drag the panel onto the application on top of the other panels with the other controls (that's what I'm trying to do).

Thanks!!

led mike30-Jul-08 9:58

30-Jul-08 9:58

Not sure what all that means but maybe, yes, that's how it works. Each UserControl get's it's own designer window. Then you can drop a UserControl onto any Designer Surface.

led mike

Thomas Stockwell31-Jul-08 7:26

31-Jul-08 7:26

Why don't you just embed the 'layouts' in panels. When the layout changes hide one panel and show another. When the selection changes but layout does not then just change the information for that particular layout panel.

darkelv31-Jul-08 23:50

darkelv

31-Jul-08 23:50

I will usually create all the "views" as Windows Forms.
In that I can change to SDI, MDI easily.

For your case, place a panel as your right container, when user click on item in the treeview, create the appropriate form and do these:

form.ControlBox = false;
form.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
form.Dock = DockStyle.Fill;
form.MaximizeBox = false;
form.MinimizeBox = false;
form.TopLevel = false;
pnlContainer.Controls.Add(form);
form.Show();
form.BringToFront();

The "form" will be shown within the panel.

I don't usually use UserControl for this kind of purpose, as I feel it's more restrictive for my liking.

C#.net service for printers

nelsonpaixao3-Aug-08 15:34

nelsonpaixao

3-Aug-08 15:34

Use usercontrols to design the different pages of your application, next find intel on "triggering a userform/form control from other form/userform".
Use delegates. Place a new post if you need this D'Oh! | :doh:

balu1234530-Jul-08 7:31

balu12345

30-Jul-08 7:31

Hi,

Iam developing an application/service for printers.The scenario is as follows

1. When a user selects a document and then he says the print command(no through my application...he selects normal print in file menu)then i have to catch some details like printername,no.of pages,document name..and so on...This action should be done before it get out from spooler.

2. As all of you that after printing data from spooler will be deleted..but in general for example for HP printer 3 files like lpr1234.tmp,shockwaveobject file ,.shd are generated. In this I have take take required files and keep them in my own spooler.

On my extensive search I came to know that by using WMI and WindowsAPI functions I can get to this goal...

But Iam unable to get into the right way....
If I have to use APIs then kindly tell what are the method I have to implement(if possible give me documentation link)

If through WMI....kindly guide me for the same

ALL these should be act as a service.....

thanks in Advance

how to validate Gridview cell's text .

squattyarun29-Jul-08 22:35

squattyarun

29-Jul-08 22:35

HI,
I have a grid control which has three columns viz.quantity, unit price, and total Amount column.
Quantity column can have only integer value.
I want to validate quantity column in a way so that as soon as user insert value other than integer, a message box should display showing error and return the focus to the cell.
OR
System should not allow any value other than integer into the cell.

Is there any keypress/keydown/keyup event for datagrid's cell also? If yes than please provide me code or any hint...

Please help.

Arun Singh
Noida.

Re: how to validate Gridview cell's text . [modified]

ElSpinos30-Jul-08 5:27

ElSpinos

30-Jul-08 5:27

You could try the following:

1 - Handle the DataGridView.EditingControlShowing event

private void DataGridView_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
 // Make sure we're getting the key press event for a text type editor...
 if (e.Control.GetType() == typeof(DataGridViewTextBoxEditingControl))
  // Handle the editing control's keypress event...
  (e.Control).KeyPress += DataGridViewTextBoxEditingControlTextBoxControl_KeyPress;
}

2 - Inside the keypress event, check for the keys you need and process them

private void DataGridViewTextBoxEditingControlTextBoxControl_KeyPress(object sender, KeyPressEventArgs e)
{
 // Standard editing keys can be processed...
 if (e.KeyChar == (char)Keys.Back)
 {
  e.Handled = false;
  // No need for further validation...
  return;
 }

 // Just evaluate the contents of the cell if the value type is int
 // NOTE: _dataGridView here is a reference to the grid in context...
 if (_dataGridView.CurrentCell.ValueType != typeof (int))
  return;

 // Validate the key char...
 // NOTE: By specifying e.Handled = true, we are indicating that
 // we absorbed the character and this key is not sent to the cell.
 e.Handled = char.IsNumber(e.KeyChar);
}

Hope this helps...

/F - .NET Developer

modified on Wednesday, July 30, 2008 11:55 AM

Re: how to validate Gridview cell's text .

squattyarun2-Aug-08 1:27

squattyarun

2-Aug-08 1:27

Thanx

Arun Singh
INDIA-Noida.
My limit is sky and sky is too high.

Report Scheduler c# GUI and SQL schema help

m3ntat_29-Jul-08 5:53

m3ntat_

29-Jul-08 5:53

Hi there we have an in-house reporting system that I have been tasked to create a report scheduler for, I am thinking of mimicking the interface used in Windows for Scheduled Tasks so will build a GUI in c# where you choose from radio buttons

Daily
Weekly
Monthly
One time only

then configure the options depending on which first option you chose, configure your report parameters and save. This info will all be saved in the Database in my own schema (yet to define) and will be run via a scheduled sql job that processes all the data and emails out the reports. The report scheduler GUI will be a client side process users will do in our organisation and the sending of reports server side.

I already have all the code for creating the reports with the defined params and emailing out reports via a sql job.

My question is what schema to use for saving the schedule/period data? I have made a start but can be quite complicated and I'm sure someone has done this before or knows how Windows Scheduled Tasks does it. Also is there a code project example of the GUI for this already somewhere? I couldn't find anything.

Something that looks kind of like http://www.recrystallize.com/merchant/crystaldesk/reportscheduler.htm

Thanks, m.

Text on Skinbutton

viciouskinid29-Jul-08 5:11

viciouskinid

29-Jul-08 5:11

Is it possible to add text to skinbutton

http://www.codeproject.com/KB/cs/TransparentControls.aspx[^]

It is possible to change the font but I cant add text.

I have tried to just overlay it with a label but I cant get the transparency to work.

Any help would be great.

Re: Text on Skinbutton

led mike29-Jul-08 5:25

29-Jul-08 5:25

viciouskinid wrote:
Is it possible to add text to skinbutton

The articles like the one you are using have their own forum/blog at the bottom of the Article. That would be the place to ask questions about any code from the article you want to use.

led mike

Re: Text on Skinbutton

viciouskinid29-Jul-08 12:24

viciouskinid

29-Jul-08 12:24

I tried that and havent got a response. Thanks anyway.

Re: Text on Skinbutton

led mike29-Jul-08 16:54