How can I get the CheckBoxList selected values what I have doesn t seem to work C NET VisualWebPart

Question

I am creating a CheckBoxList in a class file and am using an HTMLTextWriter to render the control    I m using the following code to store the selected values in a string   string YrStr       for  int i   0  i  lt  YrChkBox Items Count  i          if  YrChkBox Items i  Selected                YrStr    YrChkBox Items i  Value                   I stepped through the code and it doesn t seem to hit the inside of the if statement  amp  the selected value attribute is false every time     Anyone have an idea of how I can address this     I populate it using the following     YrChkBox Items Add new ListItem  Item 1    Item1

User · Answer

Page aspx                                                                                                             To count checklist item    int a   ChkMonth Items Count          int count   0           for  var i   0  i  lt  a  i                          if  ChkMonth Items i  Selected    true                                count                                  Page aspx cs           To access checkbox list item s value       string YrStrList               foreach  ListItem listItem in ChkMonth Items                        if  listItem Selected                                YrStrList   YrStrList         listItem Value                                                sMonthStr   YrStrList ToString

User · Answer

An elegant way to implement this would be to make an extension method  like this   public static class Extensions       public static List lt string gt  GetSelectedItems this CheckBoxList cbl                var result   new List lt string gt              foreach  ListItem item in cbl Items              if  item Selected                  result Add item Value            return result            I can then use something like this to compose a string will all values separated by       string Join      cbl GetSelectedItems

User · Answer

check boxlist selected values with seperator   string items   string Empty          foreach  ListItem i in CheckBoxList1 Items                        if  i Selected    true                                items    i Text                                        Response Write  selected items   items

User · Answer

aspx cs     Load CheckBoxList selected items into ListBox      int status   1      foreach  ListItem  s in chklstStates Items                  if  s Selected    true                        if  ListBox1 Items Count    0                                ListBox1 Items Add s Text                              else                               foreach  ListItem list in ListBox1 Items                                        if  list Text    s Text                                                status   status   0                                             else                                               status   status   1                                                          if  status    0                                     else                                       ListBox1 Items Add s Text                                     status   1

User · Answer

Try something like this   foreach  ListItem listItem in YrChkBox Items        if  listItem Selected                  do some work            else                 do something else

User · Answer

In your ASPX page you ve got the list like this        lt asp CheckBoxList ID  YrChkBox  runat  server           onselectedindexchanged  YrChkBox SelectedIndexChanged  gt  lt  asp CheckBoxList gt       lt asp Button ID  button  runat  server  Text  Submit    gt    In your code behind aspx cs page  you have this       protected void Page Load object sender  EventArgs e                if   IsPostBack                           Populate the CheckBoxList items only when it s not a postback              YrChkBox Items Add new ListItem  Item 1    Item1                 YrChkBox Items Add new ListItem  Item 2    Item2                          protected void YrChkBox SelectedIndexChanged object sender  EventArgs e                   Create the list to store          List lt String gt  YrStrList   new List lt string gt                Loop through each item          foreach  ListItem item in YrChkBox Items                        if  item Selected                                   If the item is selected  add the value to the list                  YrStrList Add item Value                             else                                  Item is not selected  do something else                                     Join the string together using the   delimiter          String YrStr   String Join      YrStrList ToArray                 Write to the page the value          Response Write String Concat  Selected Items     YrStr            Ensure you use the if   IsPostBack      condition because if you load it every page refresh  it s actually destroying the data

[c#] How can I get the CheckBoxList selected values, what I have doesn't seem to work C#.NET/VisualWebPart

Examples related to c#

Examples related to asp.net

Examples related to html

Examples related to htmltextwriter