Common data binding for Listbox,checkboxlist,dropdownlist,radiobuttonlist

Common usage of listbox,checkboxlist,dropdownlist,radiobuttonlist four is the selection of the control, the use of a similar, basic is to specify the key value pairs: Directly add the selection:

 voidway1 () {DROPDOWNLIST1.ITEMS.ADD ("C #"); DROPDOWNLIST1.ITEMS.ADD ("vb"); DROPDOWNLIST1.ITEMS.ADD ("C"); DROPDOWNLIST1.ITEMS.ADD ("Java"); LISTBOX1.ITEMS.ADD ("C #"); LISTBOX1.ITEMS.ADD ("VB"); LISTBOX1.ITEMS.ADD ("C + +"); LISTBOX1.ITEMS.ADD ("JAVA"); CHECKBOXLIST1.ITEMS.ADD ("C #"); CHECKBOXLIST1.ITEMS.ADD ("VB"); CHECKBOXLIST1.ITEMS.ADD ("JavaScript"); CHECKBOXLIST1.ITEMS.ADD ("PHP"); RADIOBUTTONLIST1.ITEMS.ADD ("ASP"); RADIOBUTTONLIST1.ITEMS.ADD ("PHP"); RADIOBUTTONLIST1.ITEMS.ADD ("JSP"); RADIOBUTTONLIST1.ITEMS.ADD ("Ajax"); } Haas Table method:voidWay2 () {Hashtable HT=NewHashtable (); Ht. ADD ("1","C #"); Ht. ADD ("2","C + +"); Ht. ADD ("3","PHP"); Ht. ADD ("4","CGI");  This. Dropdownlist2.datasource=HT; Dropdownlist2.datatextfield="Value"; Dropdownlist2.datavaluefield="Key";    Dropdownlist2.databind ();  This. Listbox2.datasource=HT; Listbox2.datatextfield="value"; Listbox2.datavaluefield="Key";    Listbox2.databind ();  This. Checkboxlist2.datasource=HT; Checkboxlist2.datatextfield="value"; Checkboxlist2.datavaluefield="Key";    Checkboxlist2.databind ();  This. Radiobuttonlist2.datasource=HT; Radiobuttonlist2.datatextfield="value"; Radiobuttonlist2.datavaluefield="Key";   Radiobuttonlist2.databind (); }sortedlist Method:voidway3 () {SortedList S1=NewSortedList (); S1. ADD ("1","haha"); S1. ADD ("2","hehe"); S1. ADD ("3","Xixi"); S1. ADD ("4","Heihei");  This. Dropdownlist3.datasource=S1; Dropdownlist3.datatextfield="value"; Dropdownlist3.datavaluefield="Key";   Dropdownlist3.databind (); Use the Data Object Dataread method:voidWay4 () {OleDbConnection cn=NewOleDbConnection ("Provider=Microsoft.Jet.OLEDB.4.0;Data source="+server.mappath ("Sailing.mdb")+"; Persist Security Info=false"); cn.    Open (); OleDbCommand cmd=NewOleDbCommand (); Cmd. Connection=cn; Cmd.commandtext="Select Rolename,roleid from Role"; OleDbDataReader Dr=cmd.    ExecuteReader ();  while(Dr. Read ()) {ListItem Li=NewListItem (dr[0]. ToString (), dr[1].     ToString ());  This.    ListBox4.Items.Add (LI); } Dr.    Close (); cn.   Close (); } with Data set method: OleDbConnection cn=NewOleDbConnection ("Provider=Microsoft.Jet.OLEDB.4.0;Data source="+server.mappath ("Sailing.mdb")+"; Persist Security Info=false"); cn.     Open (); OleDbCommand cmd=NewOleDbCommand (); Cmd. Connection=cn; Cmd.commandtext="Select Rolename,roleid from Role"; OleDbDataAdapter ADP=NewOleDbDataAdapter (CMD); DataSet DS=NewDataSet (); Adp.     Fill (DS);  This. Checkboxlist4.datasource=ds. tables[0];  This. Checkboxlist4.datatextfield=ds. tables[0]. columns[0].     ToString ();  This. Checkboxlist4.datavaluefield=ds. tables[0]. columns[1].     ToString ();  This. Checkboxlist4.databind (); There is also an array method:<%@ Page language="C #"autoeventwireup="True"%><script language="C #"runat="Server">voidPage_Load (Object Sender,eventargs e) {ArrayList array=NewArrayList (); array. ADD ("Windows"); array. ADD ("Linux"); array. ADD ("Unix"); Checkbox_1.datasource=Array; Checkbox_1.databind (); Radiolist_1.datasource=Array; Radiolist_1.databind ();}</script><form id="form_1"runat="Server"><asp:checkboxlist id="checkbox_1"runat="Server"/><input id="button_1"Type="Button"Value="Checkbutton"runat="Server"/><asp:radiobuttonlist id="radiolist_1"runat="Server"/><input id="button_2"Type="Button"Value="RadioButton"runat="Server"/></form>

Common data binding for Listbox,checkboxlist,dropdownlist,radiobuttonlist