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hi,
can u explain it pls.
Thank you
prasad
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I know there is no input box class in C# and we have to either import it from VB or write a custom input box.
But currently while I'm working with my program, it is an excel-like program with a grid table on the GUI, user can enter data into any cell on that (like an excel sheet), I come across a problem that whenever I call the input box to display, the currently selected cell will lose all its data.
I tried both the input box from VB and made a new form to display my custom input box, but the problem is still the same.
Can anyone help me identify why this happen ? I really have no idea why pop up a new form would make the currently selected cell in current form lose all the data, especially when the other cells remained unchanged.
Regards
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What's wrong with a textbox ? What on earth is an inport box, that you need to import it from VB ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Well there is really nothing wrong with a text box, but I don't need a text box here.
What I need is a pop up box to ask user input something and allow them to confirm/cancel with button, and that's why I need an Input box
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OK, then you need to create a form that does that.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Please read my original post again.
I do know that I need to create a form to do that, and I already did. But the problem is that whenever I call that form, my cell data got erased.
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Hello,
Are you passing information to that form, like the instance of your control?
Give us more information what this form is doing.
All the best,
Martin
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This is all I do with that input box, I don't pass in any control
InputBoxResult result = InputBox.Show("Enter alias:", "Some title", "Default", new InputBoxValidatingHandler(inputBox_Validating));
InputBoxResult is a class that have a boolean value for validating input and a text value for input string.
Here is the method that I use to show the form:
public static InputBoxResult Show(string prompt, string title, string defaultResponse, InputBoxValidatingHandler validator, int xpos, int ypos) {
using (InputBox form = new InputBox()) {
form.labelPrompt.Text = prompt;
form.Text = title;
form.textBoxText.Text = defaultResponse;
if (xpos >= 0 && ypos >= 0) {
form.StartPosition = FormStartPosition.Manual;
form.Left = xpos;
form.Top = ypos;
}
form.Validator = validator;
DialogResult result = form.ShowDialog();
InputBoxResult retval = new InputBoxResult();
if (result == DialogResult.OK) {
retval.Text = form.textBoxText.Text;
retval.OK = true;
}
return retval;
}
}
I want to get this input string and set it as the cell alias. Well I can get that string, but whenever the form pop up, my cell goes empty
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Hello,
thailehuy wrote: new InputBoxValidatingHandler
What is the handler doing?
From which event are you calling the Show method?
All the best,
Martin
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The handler does not do anything in particular, but call this method:
private void textBoxText_Validating(object sender, System.ComponentModel.CancelEventArgs e) {
if (Validator != null) {
InputBoxValidatingArgs args = new InputBoxValidatingArgs();
args.Text = textBoxText.Text;
Validator(this, args);
if (args.Cancel) {
e.Cancel = true;
errorProviderText.SetError(textBoxText, args.Message);
}
}
InputBoxValidatingArgs and Validator are some other classes and variables that store values
The Show method is called whenever user click a button or a menu item
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thailehuy wrote: I do know that I need to create a form to do that, and I already did.
OK, I thought you said you were importing some VB thing instead.
thailehuy wrote: But the problem is that whenever I call that form, my cell data got erased.
OK, it's impossible to help you without seeing some code.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Hi,
I am using OLEDB for reading excel data.Although it's working fine but unable to read values of some cell e.g. i have data in A1,A2,A3 cells.
my program is successfully reading data of cell A1 but unable to read data from cells A2,A3. i have checked all but unable to find the cause.when i applied watch on table. Its showing System.DBNull in cell A2 and A3.
please help me ASAP
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Do you have data in any other cells ? Perhaps you're not reading the cells you thin kyou are.
No-one can offer more concrete help without seeing your code.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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data is present in all cells. i think problem in the column data type
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How do u read the data from cells?
Does the app always read first cell?
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Hi All,
Please let me know how to invoke a method of an application in Windows service using Process Class of System.Diagnostics. I don't want to make use of Reflection.
// Get all instances of Application running on the local
Process[] localName = Process.GetProcessesByName("Application_Name");
foreach (Process proc in localName)
{
Console.WriteLine(proc.ToString());
Console.WriteLine(proc.Id);
Console.WriteLine(proc.GetType());
}
Using the above instance I have to call the method of the application.
Noor hussain
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Then you need to load the assembly using the methods in the System.Reflection namespace, not get a set of processes in the system.
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oConn.Open = "Provider=DB2OLEDB;" & _
"Network Transport Library=TCPIP;" & _
"Network Address=xxx.xxx.xxx.xxx;" & _
"Initial Catalog=MyCatalog;" & _
"Package Collection=MyPackageCollection;" & _
"Default Schema=MySchema;" & _
"User ID=MyUsername;" & _
"Password=MyPassword"
this is the connection string i got from a site. How will apply it in my program:
OleDbConnection connect=new OleDbConnection();
connect.ConnectionString="Provider=DB2OLEDB; initial catalog=SAMPLE;integrated security=SSPI,default schema=jefoy";
connect.Open();
OleDbCommand cmd_save =new OleDbCommand("INSERT INTO test(name,year,course)"+"VALUES("+"'"+textBox1.Text+"'"+","+"'"+textBox2.Text+"'"+","+"'"+textBox3.Text+"'"+")",connect);
cmd_save.ExecuteNonQuery();
connect.Close();
will i place it as it is or will i change the schemas and the other items? its not working. Maybe somethings wrong. Thanks...
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Hi,
No need to write Default Schema.
Eithr u use Upper haft part or lower half part. Give User id and Password in lower part of connection string. Then Take a Integer vriable as
int intRow=cmd_save.ExecuteNonQuery();
if(intRow>0)
{
"Record Updated"
}
Note: ExecuteNonQuery returns number of rows affected.
Binod K.
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OleDbConnection connect=new OleDbConnection();
connect.ConnectionString="Provider=DB2OLEDB; initial catalog=SAMPLE;integrated security=SSPI,user id=db2admin;password=eugene09";
connect.Open();
OleDbCommand cmd_save =new OleDbCommand("INSERT INTO test(name,year,course)"+"VALUES("+"'"+textBox1.Text+"'"+","+"'"+textBox2.Text+"'"+","+"'"+textBox3.Text+"'"+")",connect);
int intRow=cmd_save.ExecuteNonQuery();
if(intRow>0)
{
MessageBox.Show("Record added");
}
connect.Close();
this is a program i created adding a record in the database but their is no error but an exception, saying " DB2OLEDB is not existing in the local machine."
i think the problem is in the insert command. thanks for all the help!
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On closing a .Net 2.0 windows application exe i get the following error.
The instruction at "0x7c9118d0" referenced memory at "0x00000000". The memory could not be "written".
While closing the application , i start another process using System.Diagnostics.Process class.
What can be the reason for this error?
Also this is not a consistent behavior.
Thanks.
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Are you using any third party components? Or a taskbar/tasktray type component?
The only way to speed up a Macintosh computer is at 9.8 m/sec/sec.
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Implement the following and it will show the exception that is occurring:
///
/// The main entry point for the application.
///
[STAThread]
static void Main()
{
// Connect to the unhandled exception event
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new TestApp());
// Disconnect from the unhandled exception event
AppDomain.CurrentDomain.UnhandledException -= new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
}
static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
// Show the exception to the user. This could be written
// to a file, but since this is just a test app...
MessageBox.Show(e.ExceptionObject.ToString());
if (!e.IsTerminating)
Application.Exit();
}
Phil
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Hi,
I'm currently working with user controls under VS2005.
VS2005 does provide a handy tool called "UserControl TestContainer" for every user controls in my project.
However, I need to configure one of my user controls in the project to be the first one to display.
The problem here is that I'm using a third party control and it doesn't render correctly if its parent form is not the first one to be rendered. So I need a way to set the form as a startup user control.
Is there any way to do that?
Thank you very much.
KiT
Never wait for a chance to come, Believe in your own potential and go get it!
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None that I know of, I'm afraid.
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