Hi there,
generally TabIndex determines whether a control can be accessed by tabbing. 0=Yes -1=No.
By default interactive controls are set to TabIndex 0 and non interactive controls are set to -1.
If multiple controls have TabIndex 0, they are accessed in the order they where added to the screen.
You can customize this by numbering the TabIndexes with
0 for the first control
1 for the second
2 for the third
...
(Microsoft recommends to avoid doing that, because it can break screen readers. But if needed, you can do it like this.)
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