Comments by Marvin Ma

Marvin Ma 30-Oct-13 5:36am View

Define a property which handles the visibilities (e.g. UserControlVisibility) and BIND this to the visibility property of your user control.

You have to use the BoolToVisibilityConverter.

The property you created (UserControlVisbility) will be set if you select an item of your list (in your case the name).
Make sure to switch the visibility when no name is selected (have a look at selected item).

Now, try to write this logic...I could to this for you, but this would not have any learning effect to you.

Remember: Learning by doing!

Marvin Ma 30-Oct-13 3:39am View

The fact that you are using a user control allows you to use the routed event of the list box, because you do not produce code behind in your view.
You handle the code within your user control.

Same is valid for a custom control.

Marvin Ma 29-Oct-13 10:22am View

Yeah, sorry wanted to edit that, but you have been faster.

The list box has the events you are looking for:

SelectionChanged for example.
If the event got fired, just set the visibility, this is not the 'cleanest' way, but If you are new to MVVM, this would be the first step.

Marvin Ma 29-Oct-13 10:12am View

You could define a property to handle the visibilities.
Also define a command or routed event to handle the button click, which sets the property to the value you want.

Try for yourself, it's simple.
If you need help, just ask.

Marvin Ma 29-Oct-13 6:26am View

Edited my solution.

Marvin Ma 29-Oct-13 6:09am View

The text you enter in your text box is bound to your property, which you have to add to your collection because your list box needs an item source.

There are two possibilities for the add functionality for the button:
1) use a routed event
2) use a delegate command

I would prefer the second option because if you're using MVVM this would be the right way because you shouldn't have any code behind in your view.

Are you familiar with delegate commands?

Marvin Ma 29-Oct-13 5:15am View

I edited my solution.

Marvin Ma 28-Oct-13 6:11am View

Try to Deserialize the XML document and convert the byte[] to image.

Marvin Ma 25-Oct-13 9:31am View

Ok, if it is really an Image you just can invoke your method and pass this image...
imageToByteArray(yourImage)

Marvin Ma 25-Oct-13 9:26am View

Where do you get the Image from?
From your hard disk?

Marvin Ma 24-Oct-13 3:25am View

DO you have to do it in code or is XAML also possible?

Marvin Ma 8-Oct-13 5:49am View

Thank you for your answer...this worked for me :)

Marvin Ma 1-Oct-13 3:18am View

It's not the solution to your Problem but a little tip:
You could source out the if-statement in a method, so you save some writing work.

E.g:
public void NotifyPropertyChanged(string propertyname)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyname));
}
}

Then in your setter, you could just call NotifyPropertyChanged("YourProperty");

Marvin Ma 10-Sep-13 3:51am View

Have a look at this and try on your own first:

http://msdn.microsoft.com/en-us/library/2s05feca.aspx

Marvin Ma 10-Sep-13 3:09am View

Any work done yet ?

Marvin Ma 6-Sep-13 9:13am View

Good to hear, that you found a solution :)
And thank you for your kindly words.

Marvin Ma 6-Sep-13 8:00am View

Would like to know that, too.
Why would you like to reinvent the wheel ?

Marvin Ma 6-Sep-13 7:41am View

I did.

Marvin Ma 6-Sep-13 4:49am View

Have a look at this one:

http://stackoverflow.com/questions/2300757/c-sharp-api-for-ms-word-equation-editor

Marvin Ma 6-Sep-13 4:07am View

Could you post the code for Form2 please?

Marvin Ma 6-Sep-13 3:51am View

Do you only want to compare if they're equal to each other?

Marvin Ma 6-Sep-13 3:23am View

You could have a look at this article:
http://wpf-mettyz.blogspot.de/2012/01/datagrid-with-datagridcheckboxcolumn.html

It explains how to check all check boxes with the one in the header, so you could set this one in code and all rows with data will be checked, too.

Got what I'm trying to explain?

Marvin Ma 6-Sep-13 3:14am View

Is there a check box in each row of the table?

Marvin Ma 6-Sep-13 2:57am View

For understanding: You have a text box in the column header and want it to be checked if the data from database were loaded succesfully?

Let me know if I'm right.

Marvin Ma 6-Sep-13 2:35am View

“conversion faild when converting the nvarchar value ‘Gold’ to data type int.”

Try to change the data type in your database's column, where 'Gold' is saved to int.
I dont't know if this works but you could give it a try.

Marvin Ma 5-Sep-13 6:41am View

Have you done any work yet?

Marvin Ma 5-Sep-13 5:52am View

So, you want the buttons to be disabled when the application updates?
I hope i got it correctly?

Marvin Ma 5-Sep-13 4:48am View

You should solve this problem by using binding, if you are familiar with this.
So you could bind the text property one way to the selected item in your datagrid.

Marvin Ma 5-Sep-13 3:49am View

Have a look at this article:

http://social.msdn.microsoft.com/Forums/vstudio/en-US/57c2a1ac-d4f1-41c6-850f-264d30a873cb/how-to-insert-content-of-data-table-to-database

I hope it helps :)

Marvin Ma 4-Sep-13 6:43am View

Deleted

I think he wants to do this with binding.

Marvin Ma 4-Sep-13 6:34am View

Deleted

Can you post your code please, so I can try to help you.
Dont forget the XAML please.

Marvin Ma 4-Sep-13 4:00am View

Please post your code.

Marvin Ma 4-Sep-13 3:43am View

Are you familiar with binding?
Would be the easiest way to handle your Problem.

Marvin Ma 3-Sep-13 4:57am View

Deleted

Seems logical to me.

Marvin Ma 3-Sep-13 4:02am View

The relevant part of your code would be nice to see, so we can help you.

Marvin Ma 2-Sep-13 10:08am View

Could you post your code please?

Marvin Ma 27-Aug-13 6:37am View

You should check the payment values for null before calling your method.

Marvin Ma 27-Aug-13 2:50am View

Did you mean a ComboBox?

Marvin Ma 21-Aug-13 5:17am View

Sorry, but I really can't get, what you're trying to achieve.
Maybe you could just describe what you're expecting of your program.

Marvin Ma 21-Aug-13 4:21am View

So, would like the upper Snippet to work like the lower?

Comments by Marvin Ma (Top 40 by date)