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You might want to respond to the OP, rather than me.
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How to do this:
When I write one character in textBox
in other textBox to appear the ASCII code of that character.
Vasildb
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Have you looked at ASCIIEncoding?
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this.textBox2.Text=Encoding.ASCII.GetBytes(this.textBox1.Text)[0].ToString();
--EricDV Sig---------
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.
- Laurence J. Peters
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Hello,
I'd like to know if there is any way to make the DropDown part of a ComboBox open with its top-right corner aligned to the bottom-right corner of its ComboBox. Like this.[^].
Right now I'm trying to create a control of my own that inherits from a ComboBox and overriding the OnPaint and OnDrawItem methods, but I have yet to hit on a solution for this.
-M.
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Never mind. I found something[^] that works. I don't know -how- it works or why there doesn't appear to be a simpler way, but it's better than nothing.
-M.
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I want to create table at runtime for an existing Ms Access database using ASP.net 2.0 and C#. Can anyone please guide me through it ?
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use the CREATE TABLE statement
CREATE TABLE tablename(
COLUMNS
)
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Here are two SQL statements that will create table1 and then create table2 with PK, FK and inforced integrity.
string _StrSQL;
string tblName = "table1";
string tblName2 = "table2";
_StrSQL = @"CREATE TABLE " + tblName +
@" (RecID AUTOINCREMENT " +
@" CONSTRAINT PK_" + tblName + " PRIMARY KEY, " +
@" RecorderID VARCHAR WITH COMPRESSION, " +
@" GroupID VARCHAR WITH COMPRESSION, " +
@" Name VARCHAR WITH COMPRESSION, " +
@" Address VARCHAR WITH COMPRESSION)";
_StrSQL = @"CREATE TABLE " + tblName +
@"(HourID AUTOINCREMENT" +
@" CONSTRAINT PK_" + tblName + " PRIMARY KEY," +
@" RecID INTEGER NOT NULL " +
@" CONSTRAINT FK_" + tblName2 + "_" + tblName +
@" REFERENCES " + tblName2 + " (RecID) " +
@" ON UPDATE CASCADE " +
@" ON DELETE CASCADE," +
@" DSID INTEGER NOT NULL," +
@" [Month] INTEGER," +
@" [Day] INTEGER," +
@" [Year] INTEGER," +
@" [Hour] INTEGER)";
You do not have to use the '@' symboly. I use it because it make the statement easier on my eyes.
Then drop the _StrSQL in a OleDbCommand:
object _obj = null;
OleDbConnection OleConn = new OleDbConnection(_ConnString);
OleDbCommand OleComm = new OleDbCommand(_SQLString, OleConn);
OleComm.Connection.Open();
_obj = OleComm.ExecuteScalar();
OleComm.Connection.Close();
Good Luck,
Jason
Programmer: A biological machine designed to convert caffeine into code. * Developer: A person who develops working systems by writing and using software.
[ ^]
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Hi how can i upload a file from desktop application to a web directory.
I am using following code.
string fileName = @"E:\queries.txt";<br />
System.Net.WebClient client = new WebClient();<br />
client.UploadFile("http://ef-kam/Compaq/working/" + fileName, "PUT", fileName);
But i am getting following exception.
"The remote server returned an error: (501) Not Implemented."
Know Yourself Then Grow Yourself.
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The PUT method is disabled by default in the web server. You have to enable it for the server to accept it.
---
b { font-weight: normal; }
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thanks can u please tell me how i can enable it.
Know Yourself Then Grow Yourself.
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Hi,
I need to pass values dynamically for a return type of a particular property.How could i do this.
Actually what happend is:I need to display time according to the user selected format.For that I have taken a proprty and that has constants.So for that i cant send values.I need to send the values only for the retun type.How could i do this.
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I have no idea what you are talking about. Perhaps if you illustrated it with an example of what you are doing and what you want the result to be.
---
b { font-weight: normal; }
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If i understand you correctly you need to return date in the format specified by the user. Does the user input the format (e.g. MM/DD/YY)? You could return as String and cast to the proper format.
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You can override ToString and use it or you can just do like: yourTimeHoldingClassInstance.Time.ToString(userSuppliedFormatString);
public class YourTimeHoldingClass
{
public DateTime Time
{
get { return this.time; }
set { this.time = value; }
}
private DateTime time;
public override string ToString(string format)
{
return time.ToString(format);
}
}
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Hi,
I am new to .NET, someone plz help me with the simple code below.
public partial class FontSelection : Form
{
public FontSelection()
{
FontFamily [] ff = FontFamily.Families;
for (int i = 0; i < ff.Length; i++)
{
try{ lbFonts.Items.Add(ff[i].Name);}
catch(Exception e )
{ MessageBox.Show(e + " null exception") ; }
}
}
}
I am getting NullReferenceException when I run it. I understood from reading some message boards that NullRefereceException is occurring here coz i havent instantiated the fontFamily. How do i do that?
I saw on help the overload list of FontFamily class and used FontFamily (String)
I tried ff[i] = new FontFamily ("Font") but complier doesnt like it. Im not sure what else to do, so plz help me
Praths
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Hi,
May I suggest you:
- use a debugger to single-step your code.
- or you insert Console.WriteLine statements to see progress and intermediate results
(such as ff.Length)
- make sure lbFonts is not null.
Luc Pattyn
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I doubt that the FontFamily array is the problem as you get it from the static Families property and I doubt that the elements of this array aren't initialized. Otherwise you would have found a bug in .NET Framework and should report it. But I think it is more likely you forgot to initialize lbFonts which then causes the exception.
"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." - Rick Cook www.troschuetz.de
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Ok, but lbFonts is a listbox which i dragged and dropped on the form in visual studio. Do i need to initialize it? I assumed it is done automatically when u drag and drop the component on the form.
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It should be done automatically, but maybe something gone wrong or you're calling the method at some moment of the form's lifetime were it's already uninitialized. As the other poster said use the debugger to find the cause of your exception.
"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." - Rick Cook www.troschuetz.de
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hi.
on my system this code runs fine. both as a class and as a method. however i didn't extend class from Form, rather just created a form and added a control. check your initialization code for FontSelection class (in addition to the base class Form).
regards.
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How can I run my desktop application automaticly by the start up of the windows
Dad
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Create a shortcut to the exe inside the "Startmenu"-"Programs"-"Autostart" folder.
"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." - Rick Cook www.troschuetz.de
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