Null Reference Exception after updated to Wisej 2.1.86

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Hi WiseJ team,

Please see the screenshots attached.

After we updated from Wisej 2.1.75 to 2.1.86 the strange Null Reference Exception constantly appears. The error still exists in WiseJ v2.2.3-beta. The code around building datagridview hasn’t changed for half a year

Stack trace is following:

at Wisej.Web.DataGridViewCell.get_DataGridView()
at Wisej.Web.DataGridViewComboBoxCell.OnDataGridViewChanged()
at Wisej.Web.DataGridViewElement.set_DataGridView(DataGridView value)
at Wisej.Web.DataGridViewCellCollection.set_Item(Int32 index, DataGridViewCell value)
at Wisej.Web.DataGridViewRow.set_Item(Int32 index, DataGridViewCell value)

 

Michael

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wisejNullRef.JPG wisejNullRefTeam.JPG
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Thanks, I think I can reproduce. Looks like you are assigning cells of different types to the row cells, which is a OK and a great use of the grid. This is most likely a regression caused by the #2349 “DataGridView.InheritedCellStyle loses the inherited NullValue and defaults to “”.” fix (https://wisej.com/issues).

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