Re: Error because of Empty Strings in Method - C# Discussion Boards

prog_omer_esmail26-Sep-07 5:12

26-Sep-07 5:12

Sorry that my question was not understood

????

do any one know about the MCSE Questions

there are practise questions called Simulation questions????
in this type of question the student sees some thing like the actual windows interface and he can interact with it as if it is a real operating system

??????????

i want to do some thing like this

???????????

Sorry for second time

i hope it is clear now

thanks!!!!!!!!!!!!!!!

omer

size of memorystream.toarray()

JABIR E26-Sep-07 1:12

JABIR E

26-Sep-07 1:12

Bitmap BMP = new Bitmap(60, 32);
Graphics g;
g = Graphics.FromImage(BMP);
g.DrawString("abcdef", font, Brushes.Red, new PointF());
MemoryStream mem = new MemoryStream();

BMP.Save(mem,ImageFormat.Bmp);
Byte[] B = mem.ToArray();
size of B should be 60*32/8
but i got the size is 7734
can i get exact size pls

Re: size of memorystream.toarray()

Guffa26-Sep-07 1:22

Guffa

26-Sep-07 1:22

JABIR E wrote:
size of B should be 60*32/8

No, it shouldn't. It should be 54+60*4*32, which it is.

Each pixel uses four bytes, not a single bit.

The bmp file format is not a raw data file, it is an image file format that has a header (in this case 54 bytes), followed by the image data.

---
single minded; short sighted; long gone;

Error because of Empty Strings in Method

daniel_v26-Sep-07 1:06

daniel_v

26-Sep-07 1:06

So i have this method, that accepts data inputs of various types from a web form...now some of them (if not all) can be left empty...and thus insert nothing. now my coding is not allowing it to accept these empty strings, any ideas?

This is the coding i am using at the moment;

        protected void Submit_OnClick(object sender, EventArgs e)<br />
        {<br />
            try<br />
            {<br />
                //Insert records in InsertVslLic1() Method<br />
                vesselLicense.InsertVslLic1(Convert.ToDateTime(txtRegistrationDate.Text), Convert.ToInt32(txtMartimeRegistrationNumber.Text), txtVesselName.Text, <br />
                    Convert.ToInt32(ddlVesselCategory.SelectedValue),rblOperativeStatus.SelectedValue, Convert.ToInt32(ddlBasePort.SelectedValue), <br />
                    txtRemarks.Text, txtPreviousAuthorisation.Text, Convert.ToDouble(txtOverallLenght.Text),Convert.ToDouble(txtWidth.Text), <br />
                    Convert.ToDouble(txtHeight.Text), txtConstructionPlace.Text, txtCountry.Text, Convert.ToInt32(txtContructionYear.Text), txtShipyard.Text, <br />
                    txtHullMaterial.Text,txtStructuralRemarks.Text);<br />
<br />
                //Display Success Message<br />
                lblMessage.Text = "Data Input Successful";<br />
<br />
                //Redirect to Page Two [VesselLicense_Page2.aspx]<br />
                Response.Redirect("VesselLicense_Page2.aspx", false);<br />
              }<br />
            catch (Exception ex)<br />
            {<br />
                lblMessage.Text = ex.Message;<br />
                //throw ex;<br />
            }

This is the InsertVslLic1() Method used to input the data in the database (SQL Server 200)

        public void InsertVslLic1(DateTime regDate, int martimeRegNo, string vesselName, int vesselCategory, string operativeStatus, int basePort, string vesselRemarks,<br />
            string previousAuthorisation, double lenght, double width, double height, string constructionPlace, string country, int constructionYear, string shipyard, string hullMaterial,<br />
            string structuralRemarks)<br />
        {<br />
            try<br />
            {<br />
                //Open Connection<br />
                DBConnection db = new DBConnection();<br />
                db.OpenConnection();<br />
<br />
                //Create SQL string<br />
                string _sqlString = ("EXECUTE spA_FSH_InsertVslLic1 @RegistrationDate = '" + regDate<br />
                                                              + "', @MartimeRegNum ='" + martimeRegNo<br />
                                                              + "', @FishingVesselName ='" + vesselName<br />
                                                              + "', @FishingVesselType ='" + vesselCategory<br />
                                                              + "', @OperationalStatus ='" + operativeStatus<br />
                                                              + "', @FishingVesselBasePort ='" + basePort<br />
                                                              + "', @FishingVesselRemarks ='" + vesselRemarks<br />
                                                              + "', @PreviousAuthorisation ='" + previousAuthorisation<br />
                                                              + "', @FishingVesselLenght ='" + lenght<br />
                                                              + "', @FishingVesselWidth ='" + width<br />
                                                              + "', @FishingVesselHeight ='" + height<br />
                                                              + "', @ConstructionPlace ='" + constructionPlace<br />
                                                              + "', @ConstructionCountry ='" + country<br />
                                                              + "', @ConstructionYear ='" + constructionYear<br />
                                                              + "', @ConstructionShipyard ='" + shipyard<br />
                                                              + "', @ConstructionHullMaterial ='" + hullMaterial<br />
                                                              + "', @ConstructionRemarks ='" + structuralRemarks<br />
                                                              + "', @HomePortID ='" + basePort+ "'");<br />
                //Execute SQL String<br />
                db.RunSQLQuery(_sqlString);<br />
            }<br />
            catch (Exception ex)<br />
            {<br />
                throw ex;<br />
            }

Any ideas on how i can fix this? thank you

Re: Error because of Empty Strings in Method

originSH26-Sep-07 1:13

originSH

26-Sep-07 1:13

Most value types in .net 2.0 now have a method called TryParse, this allows you to attempt to parse the string into the value and returns a bool indicating it's sucess.

Here's an example of int.TryParse

http://msdn2.microsoft.com/en-us/library/f02979c7.aspx[^]

Re: Error because of Empty Strings in Method

daniel_v26-Sep-07 1:20

daniel_v

26-Sep-07 1:20

thanks

Re: Error because of Empty Strings in Method

daniel_v26-Sep-07 1:56

daniel_v

26-Sep-07 1:56

still it does not help...i cannot parse all my fields Sigh | :sigh:

Re: Error because of Empty Strings in Method

Scott Dorman26-Sep-07 3:49

Scott Dorman

26-Sep-07 3:49

First, please use the <pre> tags instead of the <code> tags. It will help the readability of your code sample.

The comment about using the TryParse (or even Parse) is valid, but it doesn't apply to all data types. The DateTime and numeric (Int32, Double, etc.) data types should all have both of these methods.

What is the error you get when you try to insert the data? Have you verified that the SQL statement is correct and that the fields are not set to be non-null in the database?

Scott.

—In just two days, tomorrow will be yesterday.

[Forum Guidelines] [Articles] [Blog]

Regarding datetime picker

Praveen02926-Sep-07 1:00

Praveen029

26-Sep-07 1:00

hi how get month name from datetime picker like if the date is 20/04/2006 I need month as April.....................

Re: Regarding datetime picker

originSH26-Sep-07 1:09

originSH

26-Sep-07 1:09

The DTP exposes it's value as a datetime.

how get month name from datetime[^]

Re: Regarding datetime picker

PIEBALDconsult26-Sep-07 4:37

PIEBALDconsult

26-Sep-07 4:37

And you can use the CustomFormat property to customize how it's displayed.

crystal reports totalPageCount

Seishin#26-Sep-07 0:45

Seishin#

26-Sep-07 0:45

hi!
k, i googled it, i CPed it and couldn't find it..
i've got this code:

<br />
CrReport report = new CrReport();<br />
// do sth with report<br />
int copies = 1;<br />
bool collated = false;<br />
int pageFrom = 1;<br />
int pageTo = 1;<br />
report.PrintToPrinter(copies, collated, pageFrom, pageTo);<br />

my problem is that i want to print all the pages of a report..
so i'd have to set pageTo to value of totalPageCount of the report..
but in the report object i can't find any property that would give me this value..
anyone knows how to get that totalPageCount value?

thx for any help!!

life is study!!!

Re: crystal reports totalPageCount

il_masacratore27-Sep-07 21:44

il_masacratore

27-Sep-07 21:44

Have search on MSDN?
You have to put value 0 on pagefrom and pageto

Visit my blog at http://dotnetforeveryone.blogspot.com/

i need code

chyasir26-Sep-07 0:00

chyasir

26-Sep-07 0:00

i need code for

BANK MANAGEMENT SYSTEM

Wrong site

Vikram A Punathambekar26-Sep-07 0:06

Vikram A Punathambekar

26-Sep-07 0:06

Try RentACoder. I'm sure Christian Graus will speak of it in glowing terms.

Cheers,
विक्रम

And sleep will come, it comes to us all
And some will fade and some will fall

Re: i need code

Sathesh Sakthivel26-Sep-07 0:23

Sathesh Sakthivel

26-Sep-07 0:23

We cannot do your work.What is your problem.

As vikram said try with rentaCoder.

SSK.

Anyone who says sunshine brings happiness has never danced in the rain.

Re: i need code

benjymous26-Sep-07 0:28

benjymous

26-Sep-07 0:28

When it asks you for the code, just type "PASSWORD OVERRIDE"

that always works in the movies

--
Help me! I'm turning into a grapefruit!
Buzzwords!

Re: i need code

Pete O'Hanlon26-Sep-07 0:37

Pete O'Hanlon

26-Sep-07 0:37

And I want the new 686 processor with onboard Artificial Intelligence.

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

Re: i need code

Malcolm Smart26-Sep-07 2:41

Malcolm Smart

26-Sep-07 2:41

but you have to type really really fast, and not actually press the keys, and simulate pressing far more keys than is really necessary...and the font on the screen has to be really BIG and in green - and if you get it wrong it beeps with DENIED in big red letters. Even on a mono display....cool!

And it doesn't matter how many attempts you get, you will always get it on the last attempt, and with only a few seconds to go before you are compromised. And notice how their disks are always formatted, and they never get CRC errors!

"More functions should disregard input values and just return 12. It would make life easier." - comment posted on WTF

"This time yesterday, I still had 24 hours to meet the deadline I've just missed today."

i need car

J4amieC26-Sep-07 0:31

J4amieC

26-Sep-07 0:31