c# - Timer does not start with opening a file with openFiledialog -


i want open excel file using openfiledialog() , show in datagridview want start timer when press open in openfiledialog
timer start when file loaded in datagridview;

edit:

@paulf right, no need wndproc try this,

if(openfiledialog1.showdialog() == dialogresult.ok) {     if (!string.isnullorempty(openfiledialog1.filename)) {          timer1.start();     } }

you can capture openfiledialog window wndproc, here example,

bool isopenfiledialog = false; // global variable check if openfile opened  private void button1_click_1(object sender, eventargs e) {      isopenfiledialog = true; // button opens openfile dialog on click event      openfiledialog1.showdialog(); // show it, waits until dialog closed      isopenfiledialog = false; // after closed set false }  private void timer1_tick(object sender, eventargs e) {      textbox1.text += "ticking! \n"; // added textbox show ticking  }   protected override void wndproc(ref message m) {       base.wndproc(ref m);       if (m.msg == 289) // check message loop       {          if (!timer1.enabled && isopenfiledialog) {       // if timer not running , button clicked open openfiledialog             timer1.start(); // start timer          }       } }

enter image description here hope helps,


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