need help, using visual basics 2017

Your program will operate as follows: 1. The user will enter an integer into the textbox 2. When the user clicks on the "START" button, the blue square will appear to be moving from right to left. The number of times the blue square will cycle through is indicated by the number inputted into the textbox. If the user did not input a valid integer, an error message will appear in a MessageBox Floating point numbers and characters are examples of invalid textbox inputs When the user clicks on the "CLEAR* button, the program will: 3. a Assign an empty string to the textbox b. Put the focus back in the textbox Moving Square Number of Iterations: START CLEAR Notes 1. You can pause the execution of the program using the following code: System Threading hread Sleee(300) 2 You can Refresh a picture box by using the following code: "Name Of Pisturebex Refresh0