.net - Saving selected listbox(binded) items to an array in c# -

string[] chkitems = new string[4];     string[] str = new string[4]; str[0] = txtid.text; str[1] = txtname.text; str[2] = txtemail.text; itemcount = ltbxinterests.selecteditems.count; (int = 0; <= itemcount; i++) {   ltbxinterests.selecteditems.copyto(chkitems, 0);    // here returning exception    //"object cannot stored in array of type." } 

please me how out exception

couple issues here, chkitems defined length 4 exception if try , put more 4 items in. source array selecteditems of type object need cast result.

assuming putting strings listbox use (remember reference system.linq)

string[] str = new string[4]; str[0] = txtid.text; str[1] = txtname.text; str[2] = txtemail.text;  string[] chkitems = ltbxinterests.selecteditems.oftype<string>().toarray(); 

if wanting limit first 4 items, replace last line to

string[] chkitems = ltbxinterests.selecteditems.oftype<string>().take(4).toarray(); 

also shorten code use array initializer (but wil make str length 3 because have 3 items):

string[] str = new [] {   txtid.text,   txtname.text,   txtemail.text, }