Re: Converting a string value to int - C# Discussion Boards

Ankur^\m/26-Apr-10 23:28

26-Apr-10 23:28

Okay, I think I got your question now.
Try this: Allow the User to Resize Controls at Runtime[^]. The code is in VB. But once you understand the concept you can write your own code to do that or you may convert it using the conversion tools available online.
Let me know if this is what you wanted.

And ya, I found the link using Google. Smile | :)

..Go Green..

Types of brushes in graphics

NarVish26-Apr-10 21:00

NarVish

26-Apr-10 21:00

Hi,

I draw a rectangle over some text using solid brush. The content is invisible after drawing that rectangle. Is there any other brush which gives the transparency.

Re: Types of brushes in graphics

Richard MacCutchan26-Apr-10 21:27

Richard MacCutchan

26-Apr-10 21:27

See here[^] for some samples on using the Opacity property.

It's time for a new signature.

Converting a string value to int

dashingsidds26-Apr-10 20:18

dashingsidds

26-Apr-10 20:18

Hi Experts,

I am trying to convert a VB application to C# .net. I came across an enum which contained values as

stsAvailabilityBits = &HF,<br />
stsFormAccessAllowed = &H1,<br />
stsValidUser = &H2,<br />
stsSystemAvailable = &H4,<br />
stsPermissionGranted = &H8,<br />
stsInquiryOnlyBits = &HF0,<br />
stsFormInquiryOnly = &H10,<br />
stsUserInquiryOnly = &H20,<br />
stsSystemInquiryOnly = &H40,<br />
stsRecordLocked = &H80,<br />
stsShutdownMinutesBase = &H100,<br />
stsShutdownMinutes = &HF00,<br />
stsErrorReturned = &H1000,<br />
stsFatalError = &H2000,<br />
stsTableEmpty = &H4000,<br />
stsResultsReturned = &H8000,<br />
stsParentControl = &H10000,<br />
stsLoadResultset = &H20000,<br />
stsSpecialPrivBitsReturned = &H40000,<br />
stsRecordAccessReturned = &H80000,<br />
stsTableLockRequested = &H100000,<br />
stsTableLockConflict = &H200000,<br />
stsMultipleLockConflict = &H400000,<br />
stsAvailBit23 = &H800000,<br />
stsUserCanExport = &H1000000,<br />
stsUserCanRename = &H2000000,<br />
stsUserCanReport = &H4000000,<br />
stsUserCanDelete = &H8000000,<br />
stsGetForInquiry = &H10000000,<br />
stsWebUser = &H20000000,<br />
stsAvailBit30 = &H40000000,<br />
stsAvailBit31 = &H80000000<br />

I am not able to understand what are these. I think they are hexadecimal values. If they are then how can i convert them into decimal/integer values in C#.net?

Please help!
Thanks!

Regards,

Samar

Re: Converting a string value to int

Ice_Freez0526-Apr-10 20:36

Ice_Freez05

26-Apr-10 20:36

try this code...

private string getDecodedKey(string strKey)
{
    string strTemp = string.Empty;
    string[] strSplitKey = strKey.Split(' ');

    foreach (string strHex in strSplitKey)
    {
        try
        {
                int intVal = Convert.ToInt32(strHex, 16);

                strTemp = strTemp + Char.ConvertFromUtf32(intVal);

        }
        catch
        {
            strTemp = strTemp + strHex + "GET DECODED KEY";
        }

    }
    return strTemp;
}

Re: Converting a string value to int

dashingsidds26-Apr-10 22:28

dashingsidds

26-Apr-10 22:28

Hi Ice,

I tried running your code with the value of strKey as "&HF" and it showed me the error

"Could not find any recognizable digits."

on this line of code

int intVal = Convert.ToInt32(strHex, 16);.

Am i doing anything wrong here?

Regards,

Samar

Re: Converting a string value to int

dashingsidds27-Apr-10 2:31

dashingsidds

27-Apr-10 2:31

Hi Ice,

Your code was good except that i need to pass 0xF instead of &HF i.e. replacing &H with 0x.

Also i am not getting the proper value when i use the following code but when i comment the same then it was working fine.

strTemp = strTemp + Char.ConvertFromUtf32(intVal);

Can you please let me know why were you using the above lines of code??

Regards,

Samar

Re: Converting a string value to int

Estys26-Apr-10 20:59

Estys

26-Apr-10 20:59

Hexadecimal, Decimal, Binary etc are representations, they're always good values.
Replace "&H" by "0x".

Cheers

^I _don't like ^my _signature at ^all

Re: Converting a string value to int

dashingsidds26-Apr-10 22:33

dashingsidds

26-Apr-10 22:33

Hi Estys,

Estys wrote:
Replace "&H" by "0x".

What am i suppose to do after replacing? Because even after replacing it wont be an integer or float or decimal, right?? Am i suppose to try and convert into an int or something after that??

Regards,

Samar

Re: Converting a string value to int [modified]

Estys26-Apr-10 23:07

Estys

26-Apr-10 23:07

(vb) &HFF = (c#) 0xFF = 255

The values are the same, it's just another way of representation.
The only thing that matters is the type of the variable.
So int myint = 0xFF; is perfectly legal.

The following lines are equivalent integer declaration / assigments:

int sixteen = 16;
int sixteen = 0x10;

This is a float :

float onetwethreefourfive = 123.45f;

So you don't need to convert the value, just replace the hex-prefix from &H to 0x.
In your case, some of the values cannot be assigned to int but must be assigned to uint or long, for instance 0x80000000.

^I _don't like ^my _signature at ^all

modified on Tuesday, April 27, 2010 5:28 AM

Re: Converting a string value to int

dashingsidds27-Apr-10 0:15

dashingsidds

27-Apr-10 0:15

Hey Estys,

I got it! Thanks a lot! Just one more question.

I have a textbox in which I am entering the data like "0xF". On click of a button i want to display its integer value. When i try the following code

Convert.ToInt32(txtHex.Text);

It is showing me "string not in correct format.".

What am i missing here?

Regards,

Samar

Re: Converting a string value to int

Estys27-Apr-10 0:25

Estys

27-Apr-10 0:25

There :

(Convert.ToInt32(txtHex.Text, 16)).ToString();

^I _don't like ^my _signature at ^all

Re: Converting a string value to int

dashingsidds27-Apr-10 2:27

dashingsidds

27-Apr-10 2:27

That is good Estys. Thanks a million.

Regards,

Samar

Re: Converting a string value to int

Luc Pattyn27-Apr-10 2:32

Luc Pattyn

27-Apr-10 2:32

No it is not so good; it may preserve the value, however the readability is gone. These numbers look like special bit patterns, so they should remain in hex. All you need is a syntax change, from VB syntax (&H12) to C# syntax (0x12).

enum MyEnumType {
    stsAvailabilityBits = 0xF,
    stsFormAccessAllowed = 0x1,
    ...
}

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

Prolific encyclopedia fixture proof-reader browser patron addict?
We all depend on the beast below.

Re: Converting a string value to int

Rajesh Anuhya26-Apr-10 22:07

Rajesh Anuhya

26-Apr-10 22:07

either u can use escape sequence

like
char ch='\xFF';

Cheers

Rajesh B --> A Poor Workman Blames His Tools <--

Merge two Header Column

kaasir_226-Apr-10 20:02

kaasir_2

26-Apr-10 20:02

Hi,
I am beginner to c#.net.
I am engaged in a project (part of HR Management), and i am stucked in a small problem.

The problem is, Leave is provided to employee. I have to display the leave statics of the employee in a manner show below
-------------------
| LEAVE | => this is dataGridView Header
-------------------
| USED | REMAINING | => this and remaining are dataGridVeiw cells.
-------------------
| | |
-------------------
| | |
-------------------
| | |
-------------------
| | |
-------------------

Thank you.

Re: Merge two Header Column

Ankur^\m/26-Apr-10 21:02

Ankur^\m/

26-Apr-10 21:02

Check this out: Merge Header - Gridview/DataGrid[^].
I hope this is what you want. Thumbs Up | :thumbsup:

..Go Green..

Re: Merge two Header Column

Dave Kreskowiak27-Apr-10 2:35

Dave Kreskowiak

27-Apr-10 2:35

The DataGridView doesn't support cell merging natively. You have to custom draw the headers of the DGV yourself. Since you're a beginner, I don't know if this is going to help or even make sense to you, but there's a code example here[^].

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Re: Merge two Header Column

Henry Minute27-Apr-10 4:34

Henry Minute

27-Apr-10 4:34

By trying to use a grid with effectively 2 header rows I feel that you are overcomplicating things.

IMHO you would be better off by creating a custom control. Place a label on the control set its dock property to Top and Text to 'Leave'. Place a grid on the control set its dock property to fill. You can then use the grid as it was intended to be used and also have the added advantage that you can set the Font for 'Leave' independently from the font of the grid and even make the background for 'Leave' to be a pretty blue or green or whatever.

Just my 2 cents. Smile | :)

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Connecting a Report (.rdlc) and (.mdf) file programmetically

csetopper_bhanu26-Apr-10 16:35

csetopper_bhanu

26-Apr-10 16:35

Hello all,
I want to add values from my database (.mdf) file to my report file (.rdlc) file. As far as I knw, it can be done by making a dataset and then by drag-n-drop we can add values to report at run time.

All I want to do is to add values to (.rdlc) file at run time through absolute code, no drag-n-drop.

Plz suggest me the ways do do it...

Thanks in advance !!!

csetopper_bhanu

Re: Connecting a Report (.rdlc) and (.mdf) file programmetically

Mycroft Holmes26-Apr-10 17:27

Mycroft Holmes

26-Apr-10 17:27

The following code is from our reportviewer initialisation. You must have created the report of course.

Datatable(s) are loaded by the form that allows the user to select the report and fill in the paramters.

	public partial class frmReportViewer : Form
{
	public frmReportViewer(string sReportFile, DataTable dtReportData)
	{
		InitializeComponent();
		ReportFile = sReportFile;
		ReportData = dtReportData;
	}
	private string ReportFile { get; set; }
	private string NameSpace { get; set; }
	private DataTable ReportData { get; set; }

	private void frmReportViewer_Load(object sender, EventArgs e)
	{
		try
		{
			string sPath = Path.GetDirectoryName(Application.ExecutablePath) + "\\Reports";
			ReportData.TableName = "dtReport";
			DataSet oDS = ReportData.DataSet;
			oDS.DataSetName = "ReportData";
			string RepResource = "FinBranch.Reports." + ReportFile + ".rdlc";
			//string sFile = Path.Combine(sPath, ReportFile);
			
			repViewer.Reset();
			//repViewer.LocalReport.ReportPath = sFile;
			//note the report has to be in the resource
			repViewer.LocalReport.ReportEmbeddedResource = RepResource;
			repViewer.LocalReport.DataSources.Add(new ReportDataSource("ReportData", oDS.Tables[0]));
			
			this.repViewer.RefreshReport();
		}
		catch (Exception)
		{ 
			throw; 
		}
		}