C# Discussion Boards - CodeProject

Re: increment problem

Anthony Mushrow7-Dec-07 2:57

Anthony Mushrow

7-Dec-07 2:57

of course, use .PadLeft(2, '0'); which will add 0's to the start until the length of the string is 2

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How to handle the Datagridview Default error dialog

Haj7-Dec-07 0:37

Haj

7-Dec-07 0:37

On invoking the form that contains the Datagrid view the DataGridView Default Error Dialog appears...
I am unable to handle this event. Can anyone tell how to prevent this dialog from appearing.

Re: How to handle the Datagridview Default error dialog

sdk_codemaker_20057-Dec-07 0:52

sdk_codemaker_2005

7-Dec-07 0:52

I am pretty sure there has to be a method after that.

but i dont no if that is write.

ollie

Re: How to handle the Datagridview Default error dialog [modified]

Haj7-Dec-07 1:33

Haj

7-Dec-07 1:33

Thank you ollie for your reply...

I have resolved the problem...

Using the DataGridView.DataError event and catching the exact error worked out...

modified on Friday, December 07, 2007 7:46:56 AM

Re: How to handle the Datagridview Default error dialog

sdk_codemaker_20057-Dec-07 4:23

sdk_codemaker_2005

7-Dec-07 4:23

no problem

try this

http://msdn2.microsoft.com/en-us/library/system.windows.forms.datagridview.dataerror.aspx[^]

http://www.google.co.uk/search?hl=en&q=DataGridView.DataError&meta=[^]

i hope they help

Read Class Name from Assembly

Abhijit Jana7-Dec-07 0:24

Abhijit Jana

7-Dec-07 0:24

Hi,
Is is possible to read all class name from a assembly.

USing reflection i can read class name and all other inforamtion of it. but i want to get the class name from some other Csproj file so i need to read the assembly of that file !!!!

Any idea !!!!

Thanks in advance !!!!

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-----------------
Abhijit Jana
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Re: Read Class Name from Assembly

Colin Angus Mackay7-Dec-07 0:55

Colin Angus Mackay

7-Dec-07 0:55

Abhijit Jana wrote:
Is is possible to read all class name from a assembly.

Yes. From the Assembly object you can use the GetTypes() method which returns an array of Type objects.

Abhijit Jana wrote:
but i want to get the class name from some other Csproj file so i need to read the assembly of that file !!!!

Yes, you can use one of the static Load methods on Assembly. If you only want to query the assembly without running code on it you can use one of the ReflectionOnlyLoad methods instead.

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Re: Read Class Name from Assembly

Abhijit Jana7-Dec-07 0:58

Abhijit Jana

7-Dec-07 0:58

Colin Angus Mackay wrote:
Yes. From the Assembly object you can use the GetTypes() method which returns an array of Type objects.

Thanks for your kind reply . Rose | [Rose]

Can you please explain me in more details . or give a small example of that !!!

Thanks in advance !!!! Rose | [Rose]

Best Regards
-----------------
Abhijit Jana
View My CodeProject Articles

"Success is Journey it's not a destination"

Re: Read Class Name from Assembly

Mr. Candyman7-Dec-07 1:13

Mr. Candyman

7-Dec-07 1:13

(for example)
Type _type = Assembly.GetAssembly(this.GetType()).GetType("class name");

or

Type[] array = Assembly.GetAssembly(this.GetType()).GetTypes();

Need Help

arslanjatt7-Dec-07 0:00

arslanjatt

7-Dec-07 0:00

Hi,
I am building a windows application that can show list of files from a folder that is placed in web site. I mean to say on web server. Let us suppose there is a folder on localhost named as Test. Now i want to display all files' mame in a list view. Is there anybody has any helping material that can help me as well. Thanks in advance

Re: Need Help

Abhijit Jana7-Dec-07 0:28

Abhijit Jana

7-Dec-07 0:28

Hope this link will help you Smile | :)

Check It[^]

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Abhijit Jana
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Re: Need Help

arslanjatt7-Dec-07 0:39

arslanjatt

7-Dec-07 0:39

I've tried this one but this is only for local system. But i want to fetch the files from a folder placed on Web Server to a local system. I can read files as stream but how can i get the list of file from a folder placed in a web site.

Re: Need Help

Abhijit Jana7-Dec-07 0:55

Abhijit Jana

7-Dec-07 0:55

http://www.codeproject.com/KB/aspnet/WebFileManager.aspx[^]

Best Regards
-----------------
Abhijit Jana
View My CodeProject Articles

"Success is Journey it's not a destination"

wpf c# event handler

angels7776-Dec-07 23:59

angels777

6-Dec-07 23:59

hi.. if i create project using wpf.. drag a button into the form.. how do i get to the event for the button_click ? i cant double click tat...

Re: wpf c# event handler

Ujjaval Modi7-Dec-07 0:18

Ujjaval Modi

7-Dec-07 0:18

Hi,

You can just add eventhandler for the button in code-behind file as follows :

button1.Click += new RoutedEventHandler(button1_Click);

Regards,
Ujjaval Modi

Re: wpf c# event handler

angels7777-Dec-07 19:49

angels777

7-Dec-07 19:49

where is the code behind the file? where to put the code?
wht i was forced to do is open the blend.. and get click on the event button click to show the code.. hahaha

Re: wpf c# event handler

angels7779-Dec-07 0:43

angels777

9-Dec-07 0:43

anyone?

inserting datagridview rows in database(windows application)

avvaru.murali6-Dec-07 23:26

avvaru.murali

6-Dec-07 23:26

Hi,
iam doing windows application with c#..

i have to insert datagridview rows into database...
with my code data is inserting into database and at the same
time it is giving error ("unhandled datatype mismatch")
i check with all my database datatypes and text what iam typing.

so please provide some help..

mycode is

string connection = @"Provider=Microsoft.Jet.OLEDB.4.0;" +
@"Data source= D:\inventory\management\management\database\muralicell.mdb";

OleDbConnection myconnection = new OleDbConnection(connection);
myconnection.Open();
for (int i = 0; i < inwardgrid.Rows.Count; i++)
{
string insproducts = "INSERT INTO product_details(productid,Invoice_number,productname,units,received_date)VALUES('" + inwardgrid.Rows[i].Cells[0].Value + "','" + inwardinvno.Text + "','" + inwardgrid.Rows[i].Cells[1].Value + "','" + inwardgrid.Rows[i].Cells[2].Value + "','" + inwardrecdate.Text + "')";
OleDbCommand insprocommand = new OleDbCommand(insproducts, myconnection);
insprocommand.ExecuteNonQuery();
insprocommand.Dispose();
}
myconnection.Close();

murali krishna

Re: inserting datagridview rows in database(windows application)

Ujjaval Modi7-Dec-07 0:03

Ujjaval Modi

7-Dec-07 0:03

Hi,

Just try to put your code in try & catch block. Because you are getting datatype mismatch error. The conflict is between the data you are passing and the data-type of the fields in database.

May be error is due to date field.

Regards,
Ujjaval Modi

C# :how to access textbox values of form1 from form2

kssknov6-Dec-07 22:59

kssknov

6-Dec-07 22:59

hi all

help me how to code in c# to
pass the texbox values present in form1
to form2 for a button click event
.

i had coded lik this ina button click of form1

private void btnEdit_Click(object sender, EventArgs e)
{
frm2.Show();-----i had created frm2 object above this click event

frm2.TextBox1=txtAreaName.Text;----> this code doesnt works. i mean here to pass the textbox value of form2 to textbox in form1.
}

pls help
thank you Smile | :)

senthil

Re: C# :how to access textbox values of form1 from form2

DaveyM696-Dec-07 23:35

DaveyM69

6-Dec-07 23:35

There are many ways to acheive this, the easiest is to adjust the constructor for form2 to accept a textbox argument and store that as a variable in the form2 class in the constructor. Then you can access or change any of the form1.textbox properties from form2.

Re: C# :how to access textbox values of form1 from form2

Giorgi Dalakishvili6-Dec-07 23:49

Giorgi Dalakishvili

6-Dec-07 23:49

I suggest you read this article: http://www.codeproject.com/KB/dotnet/passingvaluesbetweenforms.aspx[^][^]

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How is the Ado.Net Entity framework is good considering the performance

sarangpani6-Dec-07 22:47

sarangpani

6-Dec-07 22:47

Hi,
I am working on the Ado.Net Entity Framework and I want to know the how it is best over the Ado.net considering the performance.

Thanks,
Sarang

ControlToValidate is Null Problem

xueqing826-Dec-07 22:46

xueqing82

6-Dec-07 22:46

Hi, I'm using the RequiredFieldValidator and ValidatorCalloutExtender in the UpdatePanel. The Validator is ok for the first time,but after that I face a problem when the control is blank, the error is : ControlToValidate is null.

Can somebody please help me.....

#ps: i m using AjaxToolKit...

Thanks....

Extracting images from a webpage stream.

aj.esler6-Dec-07 22:09

aj.esler

6-Dec-07 22:09

Hi I have a web browser object that loads a given page, and once its loaded i want to extract all the images from the DocumentStream and get them in an Image or Bitmap format.
Anyone know a way of doing this?
I have tried several methods but none seem to work.

I've noticed that right click > Save As seems to be instant, ie not redownloading the picture, which is my goal. Any idea what methods Save As uses to save it without redownloading?

Any help appreciated...

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