Windows Forms

11-Mar-08 3:07

Why not use Easy Query[^] by Korzh?

Deja View - the feeling that you've seen this post before.

printer setup dialog box,using windows form gives error on server

underline column caption

AndrusM9-Mar-08 0:57

AndrusM

9-Mar-08 0:57

I want to underline DataGridView column caption text when user click in it.

I tried

foreach (DataGridViewColumn dataGridViewColumn in grid.Columns) {
DataGridViewCellStyle dgvcellStyle = new DataGridViewCellStyle();
System.Drawing.Font font = new System.Drawing.Font(
dataGridViewColumn.HeaderCell.Style.Font,
System.Drawing.FontStyle.Underline );
dgvcellStyle.Font = font;
dataGridViewColumn.HeaderCell.Style = dgvcellStyle;
}

But got exception probably since debugger shows that

dataGridViewColumn.HeaderCell.Style.Font

is null.

dataGridViewColumn.HeaderCell.Style is not null.

How to fix ?

Exception details which occurs:

System.NullReferenceException was unhandled
Message="Object reference not set to an instance of an object."
Source="System.Drawing"
StackTrace:
at System.Drawing.Font..ctor(Font prototype, FontStyle newStyle)
at myapp.BrowseForm`1.QueryData(Kontekst ko)
...

Andrus

vishal parekh8-Mar-08 3:49

vishal parekh

8-Mar-08 3:49

now i am using rdlc local report.thats why i use print function for printing report.

to display printer setup dialogbox i m using windows forms.

now in local it works perfectly,but when i publish the site,and run it,
it gives error.even when i publish in same local pc,also.

error and code below.
// --------------------------error---------------------------------
Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[InvalidOperationException: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.]
System.Windows.Forms.CommonDialog.ShowDialog(IWin32Window owner) +3103234
System.Windows.Forms.CommonDialog.ShowDialog() +6
TMSPrintReport.Run() +116
TMSPrintReport.Page_Load(Object sender, EventArgs e) +1871
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
-----------------------------------error-------------------------------

----------------------------------code---------------------------------
followin is the function run()
private void Run()

{

Export(rep);

printDoc.PrinterSettings.PrinterName = PrnName;
if (!printDoc.PrinterSettings.IsValid)

{

// MessageBox.Show("Printer Not Found", PrnName);
pd=new PrintDialog();if (pd.ShowDialog() == DialogResult.OK)

{

PrnName = pd.PrinterSettings.PrinterName;

printDoc.PrinterSettings.PrinterName = PrnName;

}

}

psd.Document = printDoc;

if (!pd.PrinterSettings.IsValid)

{
if (psd.ShowDialog() == DialogResult.OK)

{

PrnName = psd.PrinterSettings.PrinterName;

printDoc.PrinterSettings.PrinterName = PrnName;

printDoc.DefaultPageSettings.PaperSize = psd.PageSettings.PaperSize;

printDoc.DefaultPageSettings.Margins.Left = psd.PageSettings.Margins.Left;

printDoc.DefaultPageSettings.Margins.Right = psd.PageSettings.Margins.Right;

printDoc.DefaultPageSettings.Margins.Top = psd.PageSettings.Margins.Top;

printDoc.DefaultPageSettings.Margins.Bottom = psd.PageSettings.Margins.Bottom;

// printDoc.DefaultPageSettings.Landscape = psd.PageSettings.Landscape;

}

}

m_currentPageIndex = 0;

Print();

}

data pasing between two forms in c#.net

PRACTICE7-Mar-08 18:46

PRACTICE

7-Mar-08 18:46

HI I have two forms called form1 & form2. Form1 contains one textbox & one button and Form2 contains one text box & one button. When I press button of form2 i want to get form2 textbox value into form1 textbox and form2 to be closed but form1 remains displayed with form2 textbox value.

Re: data pasing between two forms in c#.net

Giorgi Dalakishvili7-Mar-08 22:44

Giorgi Dalakishvili

7-Mar-08 22:44

Have a look at this article: Passing Values between Forms in .NET 1.x with C# and VB.NET examples[^]

#region signature
my articles
#endregion

Preview a Form

Bala Thirumalai7-Mar-08 16:50

Bala Thirumalai

7-Mar-08 16:50

Hello!

Is there any way to preview how my form and the controls on it would look like, before actually running it? I tried to visualize it in the designer itself by docking the other windows, but was just curious if VS 2005 had some 'Preview option' to view the form on the Full screen.

Re: Preview a Form

Christian Graus7-Mar-08 23:24

Christian Graus

7-Mar-08 23:24

VS probably has a full screen mode, otherwise, that's precisely what the designer is for.

C# calling forms

Gregory Bryant7-Mar-08 6:52

7-Mar-08 6:52

in c# i created the first form as a login the second displays a buddy list once you login the first form is hiden using Form1.hide(); now on the second one i have a log out button that i want to close the second form and open the original first form not a new object i have everything done but reopening the first form. thank you if you can help

led mike7-Mar-08 7:29

7-Mar-08 7:29

Gregory Bryant wrote:
the first form is hiden using Form1.hide();

Gregory Bryant wrote:
open the original first form not a new object

Form1.Show();

led mike

Gregory Bryant7-Mar-08 7:58

7-Mar-08 7:58

i am trying to open the first form from the second that does not work i get an error
An object reference is required but i dont want to creat a new object and i do not know how to get the orginal object from my second form

led mike7-Mar-08 8:58

7-Mar-08 8:58

Gregory Bryant wrote:
and i do not know how to get the orginal object from my second form

that's an Object Oriented Programming beginners issue. You need a C# book for beginners. Trying to learn programming fundamentals over the internet forums is not an efficient means of doing that.

led mike

Gregory Bryant7-Mar-08 9:22

7-Mar-08 9:22

so in other words you dont know thanks lol

led mike7-Mar-08 9:32

7-Mar-08 9:32

Gregory Bryant wrote:
so in other words you dont know thanks lol

Well if I were to decide to insult you in this context it would be because I do know how to do that and have known since about 1992. So what's your reason?

led mike

Pete O'Hanlon7-Mar-08 9:32

7-Mar-08 9:32

Do you see that funky shaped icon beside his name? That means he does know - he's just not sure you're capable of this yourself.

Deja View - the feeling that you've seen this post before.

Gregory Bryant7-Mar-08 9:41

7-Mar-08 9:41

well the fuction he is trying to tell me to use is Visual basic function try it your self works fine in VB but not C++ or C# which i was asking about

Pete O'Hanlon7-Mar-08 9:49

7-Mar-08 9:49

I hate to tell you this, but it's a method on the Form class, and does work in C#. I've used it often enough to recognise it.

Deja View - the feeling that you've seen this post before.

led mike7-Mar-08 9:49

7-Mar-08 9:49

Wrong. I have a C# Windows Forms application that I executed that code in before I posted it to you.

I am trying hard not to insult you ( no comments needed from you Pete Big Grin | :-D

), I really mean it sincerely when I suggest you need to use a beginners book. There is nothing wrong with that, I still have shelves of them at home from when I started and I still have to look things up in them almost 20 years later! Laugh | :laugh:

It's a never ending experience learning about development but we really need a foundation to work from.

led mike

Pete O'Hanlon7-Mar-08 9:59

7-Mar-08 9:59

led mike wrote:
I am trying hard not to insult you ( no comments needed from you Pete ),

Moi? Little ole moi? Would I...?

Deja View - the feeling that you've seen this post before.

Paul Conrad7-Mar-08 10:40

Paul Conrad

7-Mar-08 10:40

The Show method works just fine in both C++.NET and C#. I use it every day Roll eyes | :rolleyes:

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon