Hi @karthik26 , Basically, I have 2 collections: col_Main and col_ForDropdown.
col_Main: This is used as Item property of your gallery. In your case it will be same data source or collection that you are creating on click on Add button.
col_ForDropdown: This is used as Item property of dropdown, but in different way.
OnSelect of Add button, I have below code:
Collect(
col_Main,
{Value: ""}
);
OnVisible of Screen, i have this code: In your case it should be items that you might be pulling it from some source with distinct values. In top of that I have added one more column named as Added.
ClearCollect(
col_ForDropdown,
Table(
{
Value: "A",
Added: false
},
{
Value: "B",
Added: false
},
{
Value: "C",
Added: false
},
{
Value: "D",
Added: false
},
{
Value: "E",
Added: false
},
{
Value: "F",
Added: false
},
{
Value: "G",
Added: false
}
)
);
Now the AllowEmptySelection is true for dropdown which is within your gallery.
The Default of dropdown is ThisItem.Value
OnChange Property of dropdown is
Update(
col_Main,
ThisItem,
{Value: Self.Selected.Value}
);
Update(
col_ForDropdown,
LookUp(
col_ForDropdown,
Value = Self.Selected.Value
),
{
Value: Self.Selected.Value,
Added: true
}
);
NOTE: col_Main collection, I have only one column Value, in your case you need to have all columns which is required.
And the Item property of your dropdown will be:
If(
ThisItem.Value in col_ForDropdown.Value && LookUp(
col_ForDropdown,
Value = ThisItem.Value
).Added = true,
col_ForDropdown,
Filter(
col_ForDropdown,
Added = false
)
)
So basically, I am patching the selected value as true in Added column and then based on selection , I make the Item property dropdown in conditional way.
Again, you need to work on this code as per your requirement.
-----------------------------------------------------------------------------------------------------------------------------
I hope this helps.
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Thanks,
ANB
