Set text field to read-only when scrolling

Hello

I am facing an issue with one of my H5 scripts.

I added a script to my screen where I have to set a field to readonly. It is a screen containing a grid.

When I go to my screen the field is set to readonly but when I scroll down on the grid the script stops working and my field becomes editable.

I tried adding an event handler when scrolling to set the field to readonly but it is not working.

Any one have any ideas how to fix this?

Thank you

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Rene Bottern

Have had the same problem. I had to by-pass issue by checking if the value of the field changes in the Grid instead and prevent the change at that time. Not very nice, but at least it is "protecting" the field value(s).

Kaneez Jowaheer

Thank you for the solution

Do you have an example or a code snippet for this?

Rene Bottern

First of all "attach" and Event.

this.attachEvents(this.controller, this.list);

Then you need 2 Functions like below (hope it helps):

MMSXXX_preventPipe.prototype.populateData = function(list) {
this.fieldChanged = "0";
try {
//Loop through all VISIBLE lines
for (let i = 0; i < this.list.getData().length; i++) {
if(this.list.getData()[i].WSEDTF != null) {
if(this.list.getData()[i].WSEDTF.trim().length > 0) {
if(parseFloat(this.list.getData()[i].WSEDTF.trim()) > 0) {
if(this.list.getData()[i].S1EDTF.length > 0) {
this.list.getData()[i].WSEDTF = ""; //Set back DEFAULT value - *Blank in this case
this.fieldChanged = "1"; //Indicate that Field Value has changed
}
}
}
}
}
return this.fieldChanged;
} catch (ex) {
ScriptDebugConsole.WriteLine("populateData: Error: Exception generated." + ex);
return this.fieldChanged;
}
}

MMSXXX_preventPipe.prototype.attachEvents = function(controller, list) {
try {
this.unsubscribeReqCompleted = controller.Requesting.On((e) => {
if (e.commandType === "KEY" && e.commandValue === "ENTER") {
this.fieldChanged = this.populateData(list);

if(this.fieldChanged == "1") {
e.cancel = true;
const opts = {
dialogType: "Information",
header: 'You can not change this field!',
message: 'Field should remain unchanged in this case!',
id: "msgDetails",
withCancelButton: false,
isCancelDefault: false
};
ConfirmDialog.ShowMessageDialog(opts);
}
}
});
} catch (ex) {
ScriptDebugConsole.WriteLine("attachEvents: Error: Exception generated." + ex);
}
};

MMSXXX_preventPipe.prototype.detachEvents = function () {
this.unsubscribeReqCompleted();
};

antonio-caria

Protect the grid when scroll down.

Unprotect it after You populate the data.

0911060553270289.pdf

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