In my DropdownButtonFormField2 I have a validator that cannot customize the padding of the error widget with the validator assigned. So is there any way by which I can customize the padding of the errorWidget by having the validator field…
I am trying to upload data from a json file to a DropDownButton and it gives me the following error When I run my application it gives me the following message: Exception has occurred. LateError (LateInitializationError: Field '_values@24401662' has not…
i want to make a simple drop down button in flutter . i checked everything, i watched tutorials, and i just get an error that i don't understand it at all . and i really don't know what to do…
I have a list of an object that could have 0+ records. If a record exists, I have a DropdownButton that I want to pre-populate with the first record in the list. Then, when the user changes it, leaves the…
In Flutter, I have a table where I am trying to get a list in dropdown in TableCell. I have created a gesturedetector to showDailog with DropdownButtonForm to show list and selection. but selected value is not showing in TableCell.…
I have two DropdownButtonFormfield on my page. They have relation. The second is filling after select an item from first. I am facing an error on this situation: Select an item from first, select an item from second, change the…
i have a firestore collection (conttyp) with documents (client, contractor, supplier, employee) and every document have only one (title) field like (عميل, مقاول, تاجر, موظف) i'm trying to store the value as doc id to a list and save to…
I'm new in flutter. I've created a simple project. It is fetching documents of person collection from cloud firestore. There is a modal screen to create new person document (it is opening When I touch the + button) I have…
There was an error when I inserted the DropdownButton code into my code. Outside the code containing the body, they declared it as a class, and when I put the class declared in the code, an error message appeared as…
I am trying to implement dynamic dropdownButton in my app where the items of dropdown is going to come from the names of columns in my excel sheet. I am able to show all the columns of excel but I…