c# - passing value to handler -

i have code this:

private void button1_click(object sender, eventargs e) {     openfiledialog1.showdialog(); } private void openfiledialog1_fileok(object sender, canceleventargs e) {      string ext = path.getextension(openfiledialog1.filename);     if(string.compare(ext, ".fdb") == 0)     {         string filename = openfiledialog1.safefilename;         string filedirectory = path.getdirectoryname(openfiledialog1.filename);         string databasetxt = @"c:\users\arist\appdata\roaming\tdwork\";         string[] database = { filedirectory + filename };         if (directory.exists(databasetxt))         {             system.io.file.writealllines(databasetxt + "databases.txt", database);         }         else         {             directoryinfo di = directory.createdirectory(databasetxt);             system.io.file.writealllines(databasetxt + "databases.txt", database);         }     }     else     {         messagebox.show("fajl koji ste izabrali nije firebird baza (.fdb)");         e.cancel = true;     }                         } 

now, want create more buttons open same file dialog. problem want pass openfiledialog directory different textboxes. logic this:

if open button1, pass value textbox1, if open button2, pass value textbox2, if open button3, pass value textbox3.

so wanted create int check (1, 2, 3) when press button1, pass check = 1 opendialog1_fileok, switch there , actions.

problem not know how pass handler, , if possible. if there other solution, please write it.

first, use openfiledialog this, without handling whole new function it:

if(openfiledialog1.showdialog() == dialogresult.ok){     //...code } 

second, goal you'll have sure names of controls ending on digit want (e.g. "button1" , "textbox1"). can this:

void button1click(object sender, eventargs e)     {          //messagebox.show(bt.name[bt.name.length - 1].tostring());         if(openfiledialog1.showdialog() == dialogresult.ok)         {              if(!path.getextension(openfiledialog1.filename).endswith(".fdb"))  //checking if extension .fdb (as you've shown in example)             {                    messagebox.show("fajl koji ste izabrali nije firebird baza (.fdb)");                 return; //return if it's not , no further code gets executed             }              string filedirectory = path.getdirectoryname(openfiledialog1.filename); //getting directory             string nameofmybutton = (sender button).name;    //you name of button             int lastdigitofmyname = convert.toint16(name[name.length - 1]); //returns number of button             textbox neededtextboxtoshowdirectory = this.controls.find("textbox" + lastdigitofmyname, true).firstordefault() textbox; //this search control name "textbox1"             neededtextboxtoshowdirectory.text = filedirectory; //you display text             //... doing rest of stuff here         }     }