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hi,
my application using sql server and crystal report. in installed machine i got error "get page or get totaller failed on report" while opening the report. any one help to me.
thanks in advance!!!!!!
Have A Nice Day!
Murali.M
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Hello,
Is there any code sample available to capture a signature which was written from the client on the PocketPc and this signature is then saved in the local SQL Server Ce Database? - This would fantastic if something like that exist.
Regards
Mathon
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I dont see the point of capturing the signiture to the database. What would be the use for that.
However, it would be simple to create an application that does that. There are SDKs available that make it very easy to manipulate anything to do with "Ink"
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TIA for any help!
this is windows form. i construct a tree view from a sql db table.
when the code is in the form everything works fine.
when i try to put the code in a class and pass the tree view back
i get the tree view because i can test the
count and a foreach shows each node in a MessageBox.Show
statement but it doesnt display in the form . the form with the treeview displays a blank box.
what am i doing wrong?
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hi,
put bellow lines before your class funtion and after your class function called.
MessageBox.Show(treeView1.Parent.Name);
----------------
Description:
In your function in class i thing u create new tree view control and return the same. In this case parent control + location + size does not exist. After that when you assign to your control it behaves like it has no parent.
----------
Solution:
1) pass tree view of the form in to class function
tell me if u get any prob
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that worked. thanks sooooooooooooooooo much!!
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Hi,
How I can print from a page Web towards a connected serial printer to my PC?
I must make a Javascript? or that advises to me.
The impression routines work from a program Windows to me.
Thanks.
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It a little hard to understand what you are trying to say but i'll take a guess.
if you need to get a webpage to print you are correct you will need to use javascript. its very straight forward... http://www.javascript-page.com/printpage.html
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Sorry my English.
The printing to serial printer is line by line, ok. In C# Windows Forms works good.
Can i do it same in Web?
Is it possible?
Thank for you reply.
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I have a datagrid bound to a dataview. I created some functionality to add new rows and delete rows. When I delete an row and click on the save button to save to the database I get the following message:
"Deleted row information cannot be accessed through the row".
And the delete obviously fails. Anyone with ideas on this?
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Hi there,
i implemented a virtual listview component making use of "LVS_OWNERDATA"-style in C#; everything works fine so far, but if the component looses focus and gets it again, you will get an "ArgumentOutOfRange"-exception caused by "FocusedItem"-method...
i tried to override the method, but this certainly not works, the implementation takes always the original method code...
any ideas?
regards,
tajbender
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Hi,
How can I wrap the GUID type in .Net?
Thanks.
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You don't need to. You can use the System.Guid class.
Charlie
if(!curlies){ return; }
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Hi,
When I want to specify an SQL query I am using the below code:
mySqlCommand.CommandText = "SELECT name, surname FROM people WHERE name = 'James' AND surname = 'Brown'";
But how can I do this if I don't want to write down the surname(use a variable instead of that)? I used below code but couldn't get a result:
string buffer_surname = textBox1.Text;
mySqlCommand.CommandText = "SELECT name, surname FROM people WHERE name = 'James' AND surname = '@buffer_surname'";
???
Thank you,
Cem Louis
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string buffer_surname = textBox1.Text;
mySqlCommand.CommandText = "SELECT name, surname FROM people WHERE name = 'James' AND surname = '" + buffer_surname.ToString() + "'";
You also should probably do a replace and replace any apostrophes with double apostrophes in buffer_surname, just in case.
Hope this helps.
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Look a few posts down at Heath's response about an SQL statement. While it is very humorous, he is also VERY correct. You have the same issue.
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Hi,
I used the below code to EMPTY a table which is named people but it is not working???:
<br />
SqlConnection mySqlConnection4 = new SqlConnection("Initial Catalog=mydb;Data Source=" + comboBox1.SelectedItem.ToString() + ";Integrated Security=SSPI;");<br />
mySqlConnection4.Open();<br />
SqlCommand mySqlCommand4 = mySqlConnection4.CreateCommand();<br />
SqlTransaction myTrans;<br />
myTrans = mySqlConnection4.BeginTransaction(IsolationLevel.ReadCommitted,"SampleTransaction");<br />
mySqlCommand4.Connection = mySqlConnection4;<br />
mySqlCommand4.Transaction = myTrans;<br />
mySqlCommand4.CommandText = "EMPTY people" ;<br />
myTrans.Commit();<br />
mySqlConnection4.Close();<br />
Anyway What is the problem???
Thank you by the way...
Cem Louis
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The issue is:
You are given an array of integers of size n containing values in the range 1 to n-1. Obviously there’s at least one duplicate value in this array. Please let me know the algorithm for finding one such duplicate value.
Thanks.
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There are many ways you can go about doing this. There are a few questions you should look at first though. Is the array sorted? Can you define another data structure? Are you trying to keep the complexity below a certain level?
I might do something like the following:
for (int iSize = 0; iSize < yourArray.Count; iSize++)<br />
{<br />
while (yourArray[iSize] != iSize)<br />
{<br />
if (yourArray[iSize] == yourArray[yourArray[iSize]])<br />
{<br />
MessageBox.Show( "Duplicate value of " + yourArray[iSize].ToString() );<br />
iSize = yourArray.Count;<br />
break;<br />
}<br />
Swap(yourArray[iSize], yourArray[yourArray[iSize]]);<br />
}<br />
}
I didn't really test this, just pulled it off the top of my head real quick. It might work, but I can't give any guarantees.
Good luck
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I have a weird problem that started happening.
I have a tabcontrol with 3 tabs, and each tab has its own ListBox control.
I populate the listbox controls from a dataset i retreive from a database. Everything here is fine.
The problem comes when the data is displayed. The ListBox does contain a collection, and all the items are selectable, BUT they are invisible.
Every item in the listbox remains Invisible until I do the following:
- Move the form (by dragging with the mouse)
- Change the tab (redraws the listbox control)
Once I do that, the listbox items are viewable.
Can anyone give me any insight as to what is happening here?
Jon G
www.Gizmocoder.com
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Can anyone suggest the easiest way to scan a photo from a c# application ... is the Windows Image Acquistion Automation Layer the way to go? or should I purchase a third party control such as what AtalaSoft, LeadTools or PegasusImaging provides? ... does anyone have any experience any of with these tools?
I need my C# app to tell any scanner to scan the current image ideally into its raw image format (so no image correction is applied) and it all needs to be from managed code.
Thanks in advance.
Rob
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Whenever i look at the source for one all i can think of is a c++ headerfile...i.e. a prototype of a class.
what purpose do they serve?
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well, a very good question... i'm relatively new to c# programming, too, and wondered also what they can do for me...
well, interfaces look like classes, except (see C# in a nutshell):
- the don't deliver implementations to their members, but a specification; so they are in some parts identical to abstract classes
- one class/structure can implement more than one interface, but one class can only derive from one base class
- a struct can implement an interface, but can not derive from a base class
the clue is, to define basic operations that every derived class/struct has to implement; the implementation itself may look different, but the aim of the called operations has to be the same...
let's say you implement a webshop; you know three different account types: a paypal account, a bank account and a credit card account; all types use different properties to describe the account; however, all derive from interface "IPaymentTransferAccount" 
when your customer buys something from you, all have to implement a method called "GetMoneyFrom(float bucksCount, Currency currency)" - each of them has its own implementation of initializing the money transfer, but in your code, you only call "IPaymentTransferAccount account = Customer.Account; account.GetMoneyFrom(price, Currency.USD);"
finally, you need no "dummy"-implementation in a base class, but each of it can implement many other interfaces where appropriate, that's it.
hope that helps,
regards,
tajbender
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FocusedWolf wrote:
what purpose do they serve?
An interface ensures that when something wants to invoke methods on a class implementing the interface, that those methods exist and have a particular signature. It's like a contract. If you inherit from an interface, your class is saying "I'm implementing the methods that are defined in the interface, so anyone who knows about the interface can use my methods."
Marc
MyXaml
Advanced Unit Testing
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