Column Headers Not Showing With Empty DataTable

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Kal posted over 10 years ago

Hello,

When binding a datatable to a wintree everything is displayed as it should, in a grid style fashion.

The problem is when the datatable doesn't contain any rows (it does contain datacolumns), so the wintree column headers aren't displayed.

I checked to see the Columns in the ColumnSet and they are populated as they should be but still the wintree will not display the column headers.

How can I display the Column Headers when the data table doesn't contain any rows ?

Thanks.

23930

Offline Dimitar posted over 9 years ago in reply to Kal

Hello Kal,

I am just checking about the progress of this issue. Let me know if you need my further assistance on this issue.

Thank you for using Infragistics Components.
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23930

Offline Dimitar posted over 10 years ago in reply to Kal
Hi Kal,

Thank you for the reply.

If you are not willing to use the dummy row approach, you can log a new product idea, for a property that will allow you to show the columns even if the tree is empty. You can log the idea in our product ideas site: <http://ideas.infragistics.com>.

There are many benefits to submitting a product idea:

-          Direct communication with our product management team regarding your product idea.

-          Notifications whenever new information regarding your idea becomes available.

-          Ability to vote on your favorite product ideas to let us know which ones are the most important to you. You will have ten votes for this and can change which ideas you are voting for at any time.

-          Allow you to shape the future of our products by requesting new controls and products altogether.

-          You and other developers can discuss existing product ideas with members of our Product Management team.

Steps to create your idea:

1.       Log into the Infragistics Product Idea site at http://ideas.infragistics.com (creating a new login if needed).

2.       Navigate to the product / platform channel of your choice (e.g. WPF, Windows Forms, ASP.NET, HTML5 / Ignite UI, iOS / NucliOS, etc.)

3.       Add your product idea and be sure to be specific and provide as much detail as possible.

Explain the context in which a feature would be used, why it is needed, why it can’t be accomplished today, and who would benefit from it. You can even add screenshots to build a stronger case. Remember that for your suggestion to be successful, you need other members of the community to vote for it. Be convincing!

Include a link to this thread in your idea so product management will be able to look back at this case.

The Product Idea site puts you in the driver’s seat and allows you to track the progress of your ideas at any time, see how many votes it got, read comments from other developers in the community, and see if someone from the product team has additional questions for you.

Thank you for contacting Infragistics.
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565

Kal posted over 10 years ago in reply to Dimitar

is there a solution without adding a dummy row ?
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23930

Offline Dimitar posted over 10 years ago in reply to Kal

Hi Kal,

Thank you for the reply.

Do you mean for a node with a specific key? You can do that in the DrawFilter DrawElement method by using the following code inside it:

var node = drawParams.Element.GetContext() as UltraTreeNode;

return node.Key == "MyTreeNode";

If that isn’t the case please clarify your requirement.

I am looking forward to your reply.
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565

Kal posted over 10 years ago in reply to Dimitar

Thank you for quickly replying.

Can I do this only for a specific node ?
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