How to open a file repeteadly with pushbutton in GUI?

Hi; I can load a file with a pushbutton. After loading the file my Matlab code gets some certain values from the text file and write them in "static text" to show them to the user. And also it draws a graph also. No problem from start to here. But when I press the pushbutton again to load another file instead of previous one I can not do this. I want "file load pushbutton" erase all "static texts and graphs and variables" and load the new variables and do the same job as previous.Who can solve this problem?

[Arunkumar M]

What do you see when you press pushbutton again? May be a little insight on the code could help.

[Rik]

If you don't explain how your code is structured it is difficult to help. Does the callback function test if the output fields are already filled? What does resetting mean to you? It shouldn't be too difficult to implement a few calls like set(handles.object,'String','')

Or maybe you need to remove some data from the handles struct?

Your description is a bit too high level description to be solvable.

[serhat tekebas]

ıt could be the solution. Because when I load the file I use handles struct to use variables at different callbacks.

[serhat tekebas]

Error using handle.handle/set Invalid or deleted object.

Error in MicSer_HV_Control>loadfromfile1_Callback (line 420) set(handles.nw, 'String', nw);

Error in gui_mainfcn (line 95) feval(varargin{:});

Error in MicSer_HV_Control (line 42) gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)MicSer_HV_Control('loadfromfile1_Callback',hObject,eventdata,guidata(hObject)) Error while evaluating UIControl Callback.