How to hide import file delete button while flow is running?

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Javascript

I am working in Power Apps and Power Automate. I have an import file element on my form. When a user imports a file and clicks on the submit button and flow is triggered. I am trying to hide the delete button on the imported file while the flow is running.

What I have tried:

I have tried a JS and no luck.

function showHideFields(executionContext) {

var formContext = executionContext.getFormContext();
var selectionValue = Xrm.Page.getAttribute("digins_rfpdatafile").getValue().fileName;
console.log(XRM.Page.getAttribute("digins_rfpdatafile").getValue().fileName);
if(selectionValue = "True") {
console.log("True "selectionValue);
formContext.getControl("digins_rfpdatafile.fieldControl-file-control-remove-button").setVisible(true);
}
else {
console.log("False "selectionValue);
formContext.getControl("digins_rfpdatafile.fieldControl-file-control-remove-button").setVisible(false);
}