i want to add asp checklist value in array for (int i = 0; i { if (CheckBoxList1.Items[i].Selected) cb += CheckBoxList1.Items[i].Text.ToString() + ","; } for (int i = 0; i { if (CheckBoxList2.Items[i].Selected) cb2 += CheckBoxList2.Items[i].Text.ToString() + ","; i have differnt string value in check list i want store them

I dont think so that adding items into array is the best choice for your scenario. Better choose the List. List cb1=new List for (int i = 0; i { if (CheckBoxList1.Items[i].Selected) cb1.Items.Add( CheckBoxList1.Items[i].Text.ToString()); } List cb2 = new List for (int i = 0; i { if (CheckBoxList2.Items[i].Selected) cb2.Items.Add(CheckBoxList2.Items[i].Text.ToString()); } ------------------------------------------------------------------------------ At any cost If you want only with array : int [] cb1 = new int[CheckBoxList1.Items.Count]; for (int i = 0; i { if (CheckBoxList1.Items[i].Selected) cb1.Add(CheckBoxList1.Items[i].Text.ToString()); } int [] cb2 = new int[CheckBoxList2.Items.Count]; for (int i = 0; i { if (CheckBoxList2.Items[i].Selected) cb2.Add(CheckBoxList2.Items[i].Text.ToString()); }