Re: I cant catch specific exception - C# Discussion Boards

I’m developing an C# Application that uses an (old) ActiveX that I still do some modifications on.
My problem is that I can’t compile the ActiveX while I’m running my Applicaion project. That’s because the ActiveX is running in the environmet (on one of my Forms). Any tip how to handle my problem…

_____________________________

...and justice for all

APe

You must close your application if you want to comiple the ActiveX control. Generally people change the name of the .ocx file generated after the build to see if it compiles correctly in this situation. If you are happy with changes of ActiveX control, close the application, change the name of the output ActiveX and recomiple. Start the application again and you are done.

Live Life King Size
Alomgir Miah

Alomgir Miah wrote:
You must close your application if you want to comiple the ActiveX control. Generally people change the name of the .ocx file generated after the build to see if it compiles correctly in this situation. If you are happy with changes of ActiveX control, close the application, change the name of the output ActiveX and recomiple. Start the application again and you are done.

...and that's is just what I don't want to do.
I don't want Visual Studio .NET to run the AxtiveX in the environment...

_____________________________

...and justice for all

APe

Hi Friends,

I have a small problem.
I am working with C#.net and asp.net

I am using try cath block to detect the errors.
But if I write like this

try
{
.........
.......
}
catch(FormatException x)
{
.........
..........
}
it is not catching the exception in catch block rather it simply give me error in browser.

and if I write like this
try
{
................
.........
}
catch(Exception x)
{
...........
.........
}
it works fine.
But I want to diplay different message according to the exceptions caught.
Plz help me in this problem
Thanking all of u in advance.

Chetan Ranpariya

are you sure that exception type is FormatException
any way why not try some thing like this
try
{

}
catch(FormatException ex)
{}
catch(Exception ex)
{}
finally
{}

Hi,
Thank u for ur reply.
I tried the way u suggested.
When I printed the message of exception that is of system.formatexception.
but that exception was not being caught.
Then I tried to know the type of exception and I got it was the ArgumentException and I tried to catch that and I got success.

But the question is that if it is ArgumentException then why the message shown is of system.FormatException.

Can u plz clarify this?

Thank u again.

what do you mean by saying message shown is of system.FormatException.
can you post the code and exception message
may this help

Following is the code that I am running in a clikc event of a button followed by the message that I am getting when the exception is caught.

private void bttnSaveUserPersonalInfo_Click(object sender,EventArgs e)
{
DataRowView drwNewUserPersonalInfo;
string strUserRoles = String.Empty;
try
{
drwNewUserPersonalInfo = dvUserPersonalInfo.AddNew();
drwNewUserPersonalInfo[0] = txtUserLoginID.Text;
drwNewUserPersonalInfo[1] = txtUserLoginPassword.Text;
drwNewUserPersonalInfo[2] = txtUserLastName.Text;
drwNewUserPersonalInfo[3] = txtUserFirstName.Text;
drwNewUserPersonalInfo[4] = txtUserMiddleName.Text;
drwNewUserPersonalInfo[5] = txtUserDateOfBirth.Text; drwNewUserPersonalInfo[6] = txtUserSSNumber.Text;
drwNewUserPersonalInfo[7] = cboUserMaritalStatus.SelectedValue.ToString();
drwNewUserPersonalInfo[8] = cboUserSex.SelectedValue.ToString();
drwNewUserPersonalInfo[9] = txtUserNationality.Text;
drwNewUserPersonalInfo[10] = txtUserAliasName.Text;
drwNewUserPersonalInfo[11] = txtUserCurrentLocale.Text;
drwNewUserPersonalInfo[12] = Session["UserID"].ToString();
drwNewUserPersonalInfo[13] = DateTime.Now;
drwNewUserPersonalInfo[14] = Session["UserID"].ToString();
drwNewUserPersonalInfo[15] = DateTime.Now;
drwNewUserPersonalInfo.EndEdit();
dstUserPersonalInfo.WriteXml(MapPath"./DataBase/UserPersonalDetails.xml"));
ViewState["NewUserLoginID"] = txtUserLoginID.Text;
}
catch(System.ArgumentException) //This exception is caught the message *
{
Response.Write(x.Message);
}
}

//Message displayed when ArgumentException is caught
System.FormatException: String was not recognized as a valid DateTime. at System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles) at System.DateTime.Parse(String s, IFormatProvider provider, DateTimeStyles styles) at System.DateTime.Parse(String s, IFormatProvider provider) at System.Convert.ToDateTime(String value, IFormatProvider provider) at System.String.System.IConvertible.ToDateTime(IFormatProvider provider) at System.Convert.ToDateTime(Object value) at System.Data.Common.DateTimeStorage.Set(Int32 record, Object value) at System.Data.DataColumn.set_Item(Int32 record, Object value)Couldn't store <> in USER_DOB Column. Expected type is DateTime.

Plz review this code try to get the solution.
Thankin u

from the following line
drwNewUserPersonalInfo[5] = txtUserDateOfBirth.Text
that you set string value to datatime type so this generate exception
even if the string formmated like date
so try to use some thing like this
drwNewUserPersonalInfo[5] = DateTime.Parse(myDateTimeValuetxtUserDateOfBirth.Text)
look at msdn to other overloading version for this methof
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemdatetimeclassparseexacttopic.asp[^]

Thanks,

But I dont get what do u want to say.
whats the relation between the exception I am getting and the code u sent to me.
I dont think there is any relation between the two exceptions formatexception and argumentexception.
i just want to know why the proper exception is not caught.

Hi there!
I managed to make a service and then made a setup project for it.The set up worked fine on my PC but when i tried to install this service on another PC i came up with an error while trying to start the service "Error:1053 The service did not respond to start or control request in a timely fashion".
This error did not come after 3 minutes rather it came as soon as the service was tried to be started.
Plz help me in this matter.
Regards
Asif Rogers

asifrogers

Using C# forms and graphic box.

I am looking for help creating a form in which i have a graphic box. In the graphic box I can load an image that is 1024x768 in size. I want to be able to add a graphic and lock it by the x, y cord, on top of the other graphic in a seperate plane. Is this possible and does anyone have any ideas on how to make this easy to code and stable?

Rob

Is a graphic box a picture box ? If you want to draw images in layers, you need to do it yourself.

Christian Graus - Microsoft MVP - C++

yes.. its a picture box. The standard in c# VS. But what im trying to do is have two seperate immages float on top of each other, so i can click each seperatly and have seperate objects. The locations will load from a sql db of where to snap to. How can this be done?

Anonymous wrote:
The standard in c# VS.

Well, the quick and easy way, at least.

Anonymous wrote:
How can this be done?

Like I said, you need to draw the images yourself. Handle OnPaint and draw them there.

Christian Graus - Microsoft MVP - C++

hi,

i've already added a control with an image in my toolbar but the image disappears when i run my app.. why is that so?

thanks

I would like to have clients call some kind of an enqueue web method and wait for a server response. I was hoping someone could tell me the correct threading code to accomplish this.

Client > [WebMethod]public string Wait() > [Client thread waits] > Server fires "RETURN" >
Client returns "RETURN"

Anyone know how to do this?

anybody?

damn

Hi
I have Class A with a protected virtual member Method1() and i have another calss Class B inheriting Class A in which i overrided the base class's method Method1() and i also call the base class's Method1() using the base keyword. Now i have another class Class C which inherits Class B and i am overriding Method1(), the problem is now how do i call Class A's Method1() from this class.

<br />
Class A<br />
{<br />
   protected virtual Method1()<br />
   {}<br />
}<br />
<br />
Class B : Class A<br />
{<br />
   protected override Method1()<br />
    {<br />
     //code.<br />
     base.Method1()<br />
    }<br />
}<br />
<br />
Class C : Class B<br />
{<br />
   protected override Method1()<br />
   {   <br />
     QUESTION: HOW TO CALL CLASS A's METHOD1() HERE. I dont want to call   Class B's Method1() but want to call Class A's Method1()<br />
   }<br />
}<br />

F1! F1! F1!....plzzz Frown | :(

Regards
Chettu.

You can't do it directly in C# because B has already overridden Method1. You need to have a protected "forwarding" method in class B that does what you want to. Something like

class B : A
{
protected void ForwardMethod()
{
base.Method1();
}
}

It's possible in C++ though, A::Method1 will do the job.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

You can't, and it would suck if you could. Looks like C should derive from A.

Christian Graus - Microsoft MVP - C++

Why would it suck.. i have a case where Class C should inherit Class B and not A isn't this a possible scenario... i guess so....The possible solution i have done is have a method in class B which will call the base method in A. This scenario will hold in events.. where calling the base class is mandatory....

chettu wrote:
i have a case where Class C should inherit Class B and not A isn't this a possible scenario

No, because if inheritance is optional, how could you count on it in any way ?

Christian Graus - Microsoft MVP - C++

Hi
This is for a windows application in C#. I am using a PrintDialog and a PrintPreviewDialog. When I go through the PrintDialog my document prints correctly. When I use the PrintPreviewDialog the preview is correct. However when I click the print icon on the Preview dialog the printer only pushes out a blank paper. Is there anything that I need to specify in the PrintPreviewDialog?

Thanks

Kobus