'Frozenrowcount' property was already registered by 'datagrid'.

Question

0.00/5 (No votes)

See more:

i'm New to WPF, started creating a WPF application with ExtendedDataGrid/wpfextended, when i try to implement ExtendedDataGrid in the TabControl like below,

<tabControl>
<TabItem Header="TestTab"><ExtendedGridControl:ExtendedDataGrid x:Name="GridView" ItemsSource="{Binding SourceTable}" AutoGenerateColumns="False" HideColumnChooser="True"                        CanUserAddRows="False" OnlyTwoWaySorting="True" SearchAutoFilterVisibility="Visible" AutoFilterFontSize="12" GroupByControlVisibility="Collapsed">
</ExtendedGridControl:ExtendedDataGrid>
</TabItem>
</tabControl>

i'm getting an error as

'FrozenRowCount' property was already registered by 'DataGrid'.

What I have tried:

i have add enable Both EnableColumnVirtualization and EnableRowVirtualization to true.

<tabControl>
<TabItem Header="TestTab"><ExtendedGridControl:ExtendedDataGrid x:Name="GridView" ItemsSource="{Binding SourceTable}" AutoGenerateColumns="False" HideColumnChooser="True"                        CanUserAddRows="False" OnlyTwoWaySorting="True" SearchAutoFilterVisibility="Visible" AutoFilterFontSize="12" GroupByControlVisibility="Collapsed" EnableColumnVirtualization="True" EnableRowVirtualization="True">
</ExtendedGridControl:ExtendedDataGrid>
</TabItem>
</tabControl>

still the error persist.

Posted 28-May-19 0:10am

Member 10738387

Updated 19-Jun-19 12:52pm

Add a Solution

Comments

Richard MacCutchan 28-May-19 6:56am

Please edit your question and show the code where the error message occurs, and indicate the exact line that causes it.

Member 10738387 28-May-19 7:02am

it shows the error when i start adding the ExtendedGridControl.ExtendedDataGrid itself.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Gerry Schmitz · Answer 1 · 2019-05-28T05:13:00

Solution 1

Considering you are "new" to WPF, why are you bothering with "ExtendedGridControl" when WPF has a "native" datagrid control?

For all intents the "extended grid" is a "3rd party" grid that stood in until WPF got a "native" grid (a few years ago).

Use the native WPF data grid control.

The DataGrid control - The complete WPF tutorial[^]

Posted 28-May-19 5:13am

Gerry Schmitz

Comments

Member 10738387 29-May-19 1:37am

yes, i tried with native grid and its doesnt have multi-Value filters for each columns. i have googled it and ExtendedGrid met all my requirements.

PureNsanity · Answer 2 · 2019-06-19T12:52:00

That problem means something has already registered that DependencyProperty name on that class. Normally this happens for one of two reasons:

1. The DependencyProperty field was not declared as static.
2. There was a cut and paste error re-registering the same name for a different DependencyProperty.Register call.

The other thing that I want to point out, is that FrozenRowCount looks like it's being registered on the default WPF DataGrid; however, if you're using that underneath the hood in your extended objects you should be registering the new DependencyProperty on the extended classes not the default WPF DataGrid.