Value and display mode of one field based on the value of another

[ramsabi]

I have two fields one a drop down and another text. The value and display mode (edit and view) of the text field should be populated based on the value of the drop down. The form is in Power Apps and updates a SharePoint list. I have attached an image for better understanding.

Please help

Thanks in advance.

 

[RandyHayes]

@ramsabi 

Consider the following:

1) Set the Default property of your TextInput control for Revision # to the following:

Switch(dropdownRequestType.Selected.Value,
    "New", "Initial",
    "Obsolete", "N/A",
    "Revision", ""
)

2) Set the DisplayMode of the TextInput to the following:

If(dropdownRequestType.Selected.Value = "Revision", Edit, View)

I hope this is helpful for you.

[ramsabi]

Thank you for your response. That is not working.
I should have mentioned that the Values for the "Request Type" dropdown are coming from a list in SharePoint and I am using SharePoint's "Title" column for "Request Type". Maybe it would be easier if I added a column for "Revision #" in the list?

[RandyHayes]

@ramsabi 

Well, you're most likely going to need a column to store the revision #, but that is aside from your original question.

However, for your Request Type dropdown, what is your Items property of that control?  You will need to utilize whatever record column that property has in its table.