Hi Stephen,
Thanks for your interest in Syncfusion product.
In GridListControl, you cannot add the items using Items property without binding the datasource with GridListControl. So, you should bind the datasource for GridListControl using DataSource property. Please refer to the below code example and the sample,
Code example
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this.gridListControl1.DataSource = USStates; |
If you want to show the header for GridListControl, you should enable the ShowColumnHeader property. Please refer to the below code example,
Code example
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this.gridListControl1.ShowColumnHeader = true; |
Please refer the following UG and Kb link for your reference,
Regards,
Mohanraj G