Show dataannotation Description to column header tooltip

Question

Hi,I have a model with data annotations, for example:[DataMember()][Display(Name = "Projekt neve", Description = "Tooltip", Order = 2)][Required(ErrorMessage = "A mező kitöltése kötelező!")][StringLength(60, ErrorMessage = "Maximum {1} karakter hosszú lehet!")]public string? Megnevezes { get; set; }With these settings the grid sets the column name and order well, but it not show the Description part as the column header tooltip.Can you help me please how can I solve this problem?Thank you!BR, SZL

Dhanasekar Mohanraj · Accepted Answer

Hi SZL,You can achieve
your requirement to Set the Description attribute content to the tooltip
message using the tooltip opening event shown below,

private void
  SfDataGrid1_ToolTipOpening(object sender,
  Syncfusion.WinForms.DataGrid.Events.ToolTipOpeningEventArgs e)
  {
     
  var record = (this.sfDataGrid1.View.Records[0].Data as
  OrderInfo).GetType().GetProperty(e.Column.MappingName);
     
  var propertyInfo =
  record.GetCustomAttributes(true);        
     
  if (e.RowIndex == 0)
     
  {
          if (propertyInfo == null || propertyInfo.Length == 0 || (propertyInfo[0] as DisplayAttribute).Description == null)
              return;
   
          e.ToolTipInfo.Items[0].Text =
  (record.GetCustomAttributes(true)[0] as
  DisplayAttribute).Description;
     
  }
  }

Here we have prepared a sample
based on your requirement. Please find the sample in the attachment and let us
know if you have any concerns about this.Regards,
Dhanasekar M.If this post is helpful, please consider Accepting it as the
solution so that other members can locate it more quickly.Attachment: SfDatagridDemo_4390bb19.zip

Dhanasekar Mohanraj · Answer

Hi SZL,SfDataGrid Does not contain
direct support to set the column header tooltip with DataAnnotation. Currently,
we are checking the feasibilities to achieve your requirement. We need two
more business days to validate this. We will update you with further details on
August 23, 2022.We appreciate your patience until then.Regards, Dhanasekar M.

Dhanasekar Mohanraj · Answer

Hi SZL,Still, we are checking the
feasibilities to achieve your requirement. We will check and update you with further details on August 25, 2022.We appreciate your patience and understanding.Regards,Dhanasekar M.

SZL · Answer

Hy,Thank you for help! Based on your example I succeed to show the tooltip.BR, SZL

Dhanasekar Mohanraj · Answer

Hi SZL,We are glad to know that the reported problem has been resolved at
your end. Please let us know if you have any further queries on this. We are
happy to help you.Regards,
Dhanasekar M.