Comments by Alexander Dymshyts

Alexander Dymshyts 13-Aug-18 3:01am View

Please add some code, that you have tried

Alexander Dymshyts 11-May-18 7:39am View

Deleted

Try to google folowing: bind data to datagrid c#

Alexander Dymshyts 30-Oct-16 10:40am View

You can create two userControls - one for user and one for academic and load them on click event into your main view

Alexander Dymshyts 27-May-16 3:30am View

I also think you should restructure your project. In my projects I have following layers - View - it views and viewModels; BusinessLayer - different methods; DataAccessLayer - methods to work with dbo; ModelLayer - models. DAL reference goes to businessLayer, businessLayer to view.

Alexander Dymshyts 8-Sep-15 4:59am View

Use for opening and closing connection, sqlcommands using block like in CompressData method

Alexander Dymshyts 8-Sep-15 4:48am View

There are no simple "XAML way" of doing this without viewModel. Wpf way is to use XAML for a view, and viewModel for implementations, so I don't understand why you don't want to use viewModel.

Alexander Dymshyts 24-Aug-15 4:27am View

Dispatcher:Invoke runs on a main thread! Look for a async / await or Tasks in C#

Alexander Dymshyts 13-Aug-15 8:36am View

I am pasting a link to an answer. Isn't it a credit?

Alexander Dymshyts 31-Jul-15 3:17am View

I get in all links error - 1062 on line WlanClient client = new WlanClient(); or WlanOpenHandle()

Alexander Dymshyts 31-Jul-15 3:16am View

I get in all links error - 1062 on line WlanClient client = new WlanClient(); or WlanOpenHandle().. I'll try now with WMI

Alexander Dymshyts 31-Jul-15 1:35am View

I've read on stackoverflow that wmi does not work correct with Windows 7 and Windows 8. My application is for Windows 7.

Alexander Dymshyts 29-Jul-15 2:40am View

I want new porsche. Please do help. I will appreciate it.

Alexander Dymshyts 22-Apr-15 9:18am View

Why don't you use List<person>?

Alexander Dymshyts 11-Apr-14 4:02am View

You were right. Post this as an answer to accept it and thank you for help.

Alexander Dymshyts 10-Apr-14 11:29am View

You are right, I get correct value from resources, but this value is not visiable in created window. I mean if I want to set a title from constructor I can write Title = "Some title" and when I will start a window, it will have title "Some title". Here Title in the constructor has right value, but I don't see it in my loaded window

Alexander Dymshyts 10-Apr-14 10:54am View

Sorry for misunderstanding. title is "Graphic" and Application.Current.Resources[title] is value from resources with key - "Graphic". In debug it is "Graphic (us)".
After assigning value from resources Title is "Graphic (us)". Before assignment it was empty.

Alexander Dymshyts 10-Apr-14 3:20am View

Before assigment value of Title is empty.

Alexander Dymshyts 25-Mar-14 5:47am View

Yes, you are right, my fault. But it still not solves the Problem. I still get values from db, and not from my moq object

Alexander Dymshyts 24-Mar-14 9:53am View

Deleted

I've did as you said and I get error - the type 'tableName' cannot be used as type parameter 'T' in the generic type or method. there is no implicit reference convertion from 'tableName' to 'IValid'. I get this error while trying to call GetValid method(var listOfRecord = _repositary.GetValid<tableName>()). Do you know why does it happened?

Alexander Dymshyts 20-Mar-14 5:21am View

Thank you

Alexander Dymshyts 20-Mar-14 5:02am View

Can you provide a link where can I read more about validation of certificate and warning message you are talking about?

Alexander Dymshyts 11-Mar-14 4:01am View

You suggest us to write a program for you?

Alexander Dymshyts 12-Feb-14 10:01am View

I think it will be easear for him to debug, if he will have Problems. In General you are right, and he can take values using where whithout sorting.

Alexander Dymshyts 12-Feb-14 9:51am View

Deleted

why not?)

Alexander Dymshyts 12-Feb-14 9:39am View

type in Google sort list by value linq and you will see examples of sorting in Linq, and to make smaller list you should look for a linq command - where.

Alexander Dymshyts 12-Feb-14 9:15am View

So you have list of values of type class, where class consists of two properties - id and color. And you need to make from one list smaller lists of different colors? Right?

Alexander Dymshyts 12-Feb-14 9:03am View

What are you trying to do? Why do you have two cicles?

Alexander Dymshyts 29-Jan-14 11:10am View

do you still have error?

Alexander Dymshyts 17-Jan-14 8:04am View

I had the same Problem, only difference, that I was working with LinqToEntitys. Here you are establishing connection in the constructor, so I suggest you to establish connection asynchronous.

Alexander Dymshyts 16-Jan-14 8:27am View

No, in general what are you trying to do? Do you need to find a color, or what?

Alexander Dymshyts 16-Jan-14 5:47am View

What are you trying to do in your loops?

Alexander Dymshyts 9-Jan-14 5:04am View

Ok, thank you for your help.

Alexander Dymshyts 9-Jan-14 4:51am View

Thank you for this link. But still I did not get it - if LinqToEntities cares about locks for optimistic logic, or I need to take care of it?

Alexander Dymshyts 8-Jan-14 5:49am View

Can you provide your code?

Alexander Dymshyts 7-Jan-14 3:30am View

can you provide more code? it's hard to understand what you mean

Alexander Dymshyts 4-Jan-14 14:11pm View

May be you can try to use parallel.for loop instead of regular for loop.

Alexander Dymshyts 20-Dec-13 2:47am View

can you Show how do you declare this 3 variables?

Alexander Dymshyts 19-Dec-13 13:36pm View

Can you provide your code?

Alexander Dymshyts 19-Dec-13 10:51am View

Do you add controls during runtime?

Alexander Dymshyts 19-Dec-13 5:24am View

Do you use mvvm pattern?

Alexander Dymshyts 19-Dec-13 4:27am View

what have you tried?

Alexander Dymshyts 19-Dec-13 4:25am View

Can you check in debug mode the value of comboBox2.SelectedItem.ToString() and tell what does it show?

Alexander Dymshyts 19-Dec-13 2:39am View

First I would say, that we don't see your files, Folders and etc., so you should describe your question more clear. About your question - bin files will be created after building a project and for database file you need to look in the project. We cannot see your Computer and tell, if it is present or not

Alexander Dymshyts 18-Dec-13 9:00am View

Why do you want to use LINQ to SQL and not LINQ to enteties? Anyway, answer is yes, we can.

Alexander Dymshyts 18-Dec-13 8:39am View

This is not a question! If you have a question, than post it, if don't - don't post.

Alexander Dymshyts 6-Dec-13 6:53am View

What is resultValues?

Alexander Dymshyts 6-Dec-13 6:49am View

You should google for example of binding datatable to combobox

Alexander Dymshyts 28-Nov-13 10:33am View

I don't think that you get set to this variable DateTime because it is made by somebody else, and it's already double, so this variable need to be double

Alexander Dymshyts 28-Nov-13 10:29am View

such questions you should ask google, not here...

Alexander Dymshyts 28-Nov-13 2:43am View

dataGridView1.Rows[rowIndex].Cells[columnIndex].Value = value;

Alexander Dymshyts 27-Nov-13 4:26am View

this is deskop app, right?

Alexander Dymshyts 27-Nov-13 3:15am View

I don't know the purpose of this application, but I think that idea to have only one window and for registration and for reports and everything else is not a good idea. And put wpf controls one over another is also bad idea. In wpf you should create a view(of a registration or reports) and viewmodel to each view and then load your views with viewmodels.

Alexander Dymshyts 26-Nov-13 6:27am View

why not to create binding?

Alexander Dymshyts 26-Nov-13 5:37am View

Good luck

Alexander Dymshyts 8-Nov-13 7:52am View

What do you min by get control of child grid in the main grid?

Alexander Dymshyts 8-Nov-13 5:37am View

You are welcome

Alexander Dymshyts 8-Nov-13 4:24am View

Sorry, what do you want to get on button click?

Alexander Dymshyts 8-Nov-13 3:47am View

if your button is in gridControl, you can try yourButtonName.Parent

Alexander Dymshyts 8-Nov-13 3:36am View

Did you debug selectionIndexChanged?

Alexander Dymshyts 8-Nov-13 2:43am View

Did you try to use Click event?

Alexander Dymshyts 7-Nov-13 9:45am View

Can you override RowDetailsVisibilityChanged?

Alexander Dymshyts 5-Nov-13 6:01am View

where is the code?

Alexander Dymshyts 5-Nov-13 2:37am View

then you need to provide your code

Alexander Dymshyts 5-Nov-13 2:34am View

do you notify your combobox that property has been changed?

Alexander Dymshyts 31-Oct-13 9:09am View

Hello Sir, please send me 1000 euro before I will write you a program.
PS: Here nobody will do your work. Show what have your done, where are you stuck and then people will try to help you. If you need a program, you can order it by computer firm.

Alexander Dymshyts 31-Oct-13 3:34am View

Did you try binding?

Alexander Dymshyts 30-Oct-13 19:07pm View

what is the problem?

Alexander Dymshyts 29-Oct-13 7:24am View

in method CreateExam add exam.Univercity = "Name"; and see if you will be able to get univercity

Alexander Dymshyts 29-Oct-13 6:42am View

May be because they are null?

Alexander Dymshyts 27-Oct-13 7:50am View

What is the purpose of google and how can you use it...

Alexander Dymshyts 25-Oct-13 6:31am View

No, I don't need this code, but thanks

Alexander Dymshyts 25-Oct-13 3:54am View

You need on button click show new listview with customer info, right?

Alexander Dymshyts 25-Oct-13 2:40am View

I don't really understand what should I provide... If I understood you right, you should create a property
public ImageSource Image
{
get
{
return _image;
}
set
{
if (!Equals(_image, value))
{
_image = value;
RaisePropertyChanged("Image");
}
}
}
and it's value will be applied to button. If you are using for example Actipro, then you do not need anything at all, they did it for us. Hope this helps

Alexander Dymshyts 24-Oct-13 11:32am View

Everything is possible and this is also.

Alexander Dymshyts 23-Oct-13 11:28am View

what is the problem with this way? What to do next I described in my first comment here)

Alexander Dymshyts 23-Oct-13 11:22am View

You need to get int value from enum? int someIntValue = (int) enumX.y;

Alexander Dymshyts 23-Oct-13 11:17am View

What kind of userControls do you have? Can you put this 2 userControls to one panel for example and move that panel instead?

Alexander Dymshyts 23-Oct-13 10:59am View

Not a problem

Alexander Dymshyts 23-Oct-13 10:56am View

when you divide 1011 by ten you get 101.1. Then you can round to 101 and get value after point(in this case 1) and add it to the end of byte[]. And so on in loop. In this case you need to run loop 4 times.

Alexander Dymshyts 21-Oct-13 6:02am View

Show us what have you done and where is the problem.

Alexander Dymshyts 16-Oct-13 9:23am View

What about showing us some code?

Alexander Dymshyts 14-Oct-13 5:58am View

May be to try minWidth property?

Alexander Dymshyts 14-Oct-13 5:32am View

Show your code where you add items to listbox

Alexander Dymshyts 14-Oct-13 5:19am View

So what is the problem?

Alexander Dymshyts 14-Oct-13 5:03am View

What did you try to do?

Alexander Dymshyts 11-Oct-13 8:27am View

Do you have a database on another pc?

Alexander Dymshyts 10-Oct-13 9:49am View

I know that 1.1.1.1 is not the correct ip address. It's for example. Also according to this link http://www.connectionstrings.com/sql-server/ , server isn't wrong and I can use this format. Anyway even with format ipAddress:Port it doesn't work.

Alexander Dymshyts 10-Oct-13 3:19am View

Ok, we decided to use Server name and instance for connection, and it's working well. Thank you for your help.

Alexander Dymshyts 9-Oct-13 10:59am View

I must leave already. Can I give you answer tommorrow?

Alexander Dymshyts 9-Oct-13 10:38am View

IP is correct, I've check it on server machine.

Alexander Dymshyts 9-Oct-13 10:17am View

The problem is, that I cannot open con.Open() when I get ipaddress and port from user. It give's me error :
Exception:Caught: "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - No such host is known.)" (System.Data.SqlClient.SqlException)

Alexander Dymshyts 9-Oct-13 10:08am View

I used in cmd netstat -aon and saw that connection between server and my pc is established. Can the problem be caused by following - in native client configuration -> client protocol -> tcp/ip a port by default is 1433, but in properties of sqlnetwork configuration on protocole that I am using connection in properties IPALL property dynamic tcp-ports has a value, and tcp-port doesn't?

Alexander Dymshyts 9-Oct-13 9:59am View

I need to get port and ip address from user and then establish connection with sql server

Alexander Dymshyts 8-Oct-13 5:42am View

Try to look for an answer in google, im sure you will find it there

Alexander Dymshyts 8-Oct-13 3:53am View

where is the question?

Alexander Dymshyts 8-Oct-13 3:43am View

You need to make a query with some parameter(for example card_number), where you will look in all records in your database for a record with such parameter. When this record will be found, you will be able to access id field

Alexander Dymshyts 8-Oct-13 3:14am View

What have you done so far? Where in your code you have a problem?

Alexander Dymshyts 8-Oct-13 3:10am View

So where are you stuck at? Dynamically creating a listbox like in a link?

Alexander Dymshyts 7-Oct-13 11:30am View

Glad that it helped you)

Alexander Dymshyts 7-Oct-13 11:01am View

Sample of raising events?

Alexander Dymshyts 7-Oct-13 7:09am View

Can you show your code?

Alexander Dymshyts 4-Oct-13 8:31am View

Can you provide your code?

Alexander Dymshyts 1-Oct-13 11:08am View

Have you ever heard about Google?

Alexander Dymshyts 1-Oct-13 8:40am View

So where is your code?

Alexander Dymshyts 1-Oct-13 3:37am View

First read articles in the provided solution! Then in debug mode find a line where do you get error. After reading articles and finding error, it should be clear for you, why do you get this error.

Alexander Dymshyts 1-Oct-13 3:24am View

In provided solution there are two links to articles. Read them and it would be clear to you, why do you get this error and what is wrong.

Alexander Dymshyts 1-Oct-13 3:11am View

From where did you get this programm? From a book?

Alexander Dymshyts 1-Oct-13 3:10am View

I would not give you total solution. What I suggest, is to open a book and try to understand what this programm should do. Than it will be easier to deal with errors.

Alexander Dymshyts 1-Oct-13 3:07am View

As Peter said you should pass two parameters in this function. They are X and Y, that are variables few lines higher before line, from where you are calling method polygonArea.

Alexander Dymshyts 1-Oct-13 3:02am View

create default constructor for polygon area.

Alexander Dymshyts 30-Sep-13 6:35am View

Did you try to use google before asking?

Alexander Dymshyts 25-Sep-13 11:33am View

Did you try to google ?

Alexander Dymshyts 25-Sep-13 8:53am View

try to put try-catch on cn.open() and check what error it shows.

Alexander Dymshyts 25-Sep-13 6:11am View

It is possible. Try with admin rights.

Alexander Dymshyts 25-Sep-13 6:06am View

You can check, if your connection string is right on http://www.connectionstrings.com/excel/
Hope this helped.

Alexander Dymshyts 25-Sep-13 5:55am View

It means that you cannot establish connection. Check connection string or file existance

Alexander Dymshyts 24-Sep-13 11:05am View

You are right

Alexander Dymshyts 24-Sep-13 10:33am View

I agree about conversion. But if he wants to make change in a field, and save it back, then there will be error during saving to bd, if field marked as Not Null.

Alexander Dymshyts 24-Sep-13 10:25am View

I just remade his querry. May be he wants to make changes in that record and save it back to db, than he does not need to do return. If he needs to return record, than your solution is better.

Alexander Dymshyts 24-Sep-13 6:54am View

Create in your class properties DepartmentCode,DepartmentName, and get their values from database. Than you will be able to bind them.

Alexander Dymshyts 24-Sep-13 4:57am View

Did you try anything?

Alexander Dymshyts 11-Sep-13 11:42am View

You can try Mediator Pattern, messaging system or producer consumer pattern.

Alexander Dymshyts 6-Sep-13 7:17am View

Can you just post a part, where you have problems?

Alexander Dymshyts 6-Sep-13 7:05am View

First of all, you should find out, where is your mouse located(x /y - axis) on mouse move event. Then get value from database and show it on screen.

Alexander Dymshyts 9-Aug-13 4:51am View

Can you post your code part like a code, and not like a text?

Alexander Dymshyts 25-Jul-13 8:41am View

may be dtInventory is null? Check in debug where you get this error

Alexander Dymshyts 23-Jul-13 6:07am View

can you provide your code?

Alexander Dymshyts 19-Jul-13 7:13am View

I just wanted to know, if I understand you right, because I don't think that keeping a copy of a lot of properties is a good way. But I like your idea with UpdateSource. Thank you for help

Alexander Dymshyts 19-Jul-13 7:00am View

and if there are hundred properties, so my object should keep copy of hundred properties. Do I understand you right?

Alexander Dymshyts 11-Jul-13 9:31am View

Deleted

As I understand image loaded from database does not fit your listbox, right?

Alexander Dymshyts 2-Jul-13 2:43am View

Use triggers to do that

Alexander Dymshyts 28-Jun-13 2:41am View

Did you try something?

Alexander Dymshyts 27-Jun-13 10:18am View

Deleted

May be lecturer can? did you try to ask him?

Alexander Dymshyts 26-Jun-13 7:07am View

did you try to put on a tab header a button, that will create dynamically new tab?

Alexander Dymshyts 25-Jun-13 7:05am View

What do you mean?

Alexander Dymshyts 24-Jun-13 4:30am View

Or may be this example will help you with your problem - http://www.codeproject.com/Articles/15822/Bind-Better-with-INotifyPropertyChanged

Alexander Dymshyts 24-Jun-13 4:25am View

http://www.c-sharpcorner.com/UploadFile/ptmujeeb/wpf-mvvm-pattern-a-simple-tutorial-for-absolute-beginners/

Alexander Dymshyts 24-Jun-13 4:22am View

You should implement INotifyPropertyChanged interface

Alexander Dymshyts 24-Jun-13 4:10am View

if you have in xaml binding, for example - Text="{Binding Name}"
, you should write in code behind:
private string _name;
public string Name
{
get{ return _name; }
set
{
_name = value;
RaisePropertyChange("Name");
}
}

Alexander Dymshyts 24-Jun-13 3:28am View

You are trying to bind a property Name, but you didn't defind it in code behind. So you should create a property,and use INotifyPropertyChanged interface to notify clients that a property value has changed.

Alexander Dymshyts 14-Jun-13 7:37am View

Hope this links will help you - http://www.codeproject.com/Tips/520998/Send-Email-from-Yahoo-Gmail-Hotmail-Csharp or http://www.codeproject.com/Tips/163829/Sending-an-Email-in-C-with-or-without-attachments

Alexander Dymshyts 13-Jun-13 5:35am View

Yes, I'm adding an event handler. And when OnValueTypeChangedEvent is called, my _valueTypeChangedEvent is always NULL. Everything else is also right

Alexander Dymshyts 13-Jun-13 3:25am View

Thank you , first of all, for helping me improve my question. Yes, the purpose is only to lock, because I've read in internet that this is a good practice for multithreaded aplications

Alexander Dymshyts 13-Jun-13 3:14am View

it is not null in background, but in method LastDayMesswerte it is already NULL

Alexander Dymshyts 7-Jun-13 9:18am View

Did you try to put e.Handled = true at the end of your event?

Alexander Dymshyts 7-Jun-13 5:46am View

I think you can pass a text of the richbox, then find space that you need, and create a new string with a text that you need and you will get something like listbox1.SelectedIndex = listbox1.FindString(newFindString);
Or you can wait for alt+space event is raised, and when it raised you can save what you need in some property

Alexander Dymshyts 7-Jun-13 4:35am View

You can search for a space in richTextBox1.Text, and then you can save to another string rest of the input string

Alexander Dymshyts 6-Jun-13 9:41am View

Maybe you can use Multitriger. Then you can add new trigger to check condition of event and raise trigger actions.

Alexander Dymshyts 6-Jun-13 6:02am View

Thank you for your help, I found where was the problem.

Alexander Dymshyts 6-Jun-13 6:01am View

Deleted

Thank you for you help, I solved this problem when I added RelativeSource like <binding path="ViewModel" relativesource="{RelativeSource Mode=FindAncestor, AncestorType=Window}">

Alexander Dymshyts 5-Jun-13 3:00am View

Yes, I have an error "Cannot find source for binding with reference 'ElementName=window'". I think it's because element ExpandCategory defined in my viewModel, and TargetType for my style is PropertyGridDataAccessorItem, so there are no such element ExpandCategory in PropertyGridDataAccessorItem. But how to solve this I have no idea right now

Alexander Dymshyts 4-Jun-13 8:37am View

In my converter class in debug mode I get DisplayName fine, but ExpandCategory is - unset({DependencyProperty.UnsetValue}).
Any ideas how can I fix it?

Alexander Dymshyts 16-May-13 9:32am View

Thnx for fixing )

Alexander Dymshyts 14-May-13 3:16am View

My fault. It's DoubleCollection because my boss said that the array should be of double values.

Alexander Dymshyts 14-May-13 3:00am View

Glad this helped you

Alexander Dymshyts 10-May-13 3:20am View

may be your parameter btn.Text is null. You need to do debuging to see where value is null

Alexander Dymshyts 19-Feb-13 11:07am View

no, I can't

Alexander Dymshyts 19-Feb-13 11:07am View

public double MaximumScaleValue
{
get { return _maximumScaleValue; }
set
{
_maximumScaleValue = value;
_someArray = new int[Convert.ToInt32(_maximumScaleValue)+1];
for (int i = 0; i <= Convert.ToInt32(_maximumScaleValue); i++)
{
someArray[i] = i;
}
RaisePropertyChanged("MaximumScaleValue");
}
}

Alexander Dymshyts 19-Feb-13 10:58am View

this extra curly brace just mistake here. i don't get any errors while compiling. My method just generates values of type int for my property someArray on page_Load event. String in quotes just notifying my view that property has changed in my mvvm. I put a breakpoint, and checked that array filled correct, but on my view i don't see it.

Alexander Dymshyts 4-Jan-13 5:23am View

thnx for help. Problem was in another class that was reading data from registers

Alexander Dymshyts 4-Jan-13 5:22am View

Deleted

thnx for help. Problem was in another class that was reading data from registers

Alexander Dymshyts 4-Jan-13 4:53am View

it stops on this breakpoint... but not assigns the value

Alexander Dymshyts 5-Dec-12 6:32am View

thnx

Alexander Dymshyts 5-Dec-12 6:30am View

thank you, with a help I found an article

Alexander Dymshyts 5-Dec-12 3:35am View

Deleted

I have a program, which makes online measuring and writing data to a database table. And I have a view window that shows information for user(binds data from database table). So I need to know - each time when new data is addded to database, if databinding adds only last record to a view window, or it add all the records. And I didn't find an article which explains it...

Comments by Alexander Dymshyts (Top 165 by date)