c# - Loading gif image visible while the execution process runs -


i using window app , c#.. have picture invisible @ start of app.. when button clicked, picture box has shown..

i use coding picture box not visible

 private void btnsearch_click(object sender, eventargs e)         {             if (cmbproject.text == "---select---")             {                 messagebox.show("please select project name");                 return;                          }             else             {                 picturebox1.visible = true;                 picturebox1.bringtofront();                 picturebox1.show();                  fillreport();                 thread.sleep(5000);                 picturebox1.visible = false;         }      }

don't use sleep - blocks thread, means no windows messages processed, , form won't repainted.

instead, use timer hide image after 5 seconds.

add timer form, , change code this:

picturebox1.visible = true;     fillreport(); timer1.interval = 5000; timer1.start();

and in timer event:

private void timer1_tick(object sender, eventargs e) {     picturebox1.visible = false;     timer1.stop(); }

now image should visible 5 seconds.

however, form still not repaint while fillreport executing. if need image visible @ point, suggest using backgroundworker execute fillreport doesn't block ui thread. can hide image in runworkercompleted event.


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