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Behaviour of combobox in datagrid.

Behaviour of combobox in datagrid.

Behaviour of combobox in datagrid.

(OP)
Hello,

In a WPF-form, I have a datagrid and the first column is a combobox.
On any row of the datagrid I choose to click, the combobox opens and shows its values nicely.

However afterwards, I am only able to click on the combobox of the chosen row - which opens the combobox and displays the values - but on any other row that I click on the combobox, it refuses to open.

Does anyone have an idea why I can only open the first combobox I choose and then no one more?

Many thanks and greetings,

Michel

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