how to check and uncheck all in checkboxlist in asp.net

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h to all,
how to check and uncheck in checkbox list in asp.net

Design:-

XML

<asp:CheckBoxList ID="lst" runat="server" AutoPostBack="true" SelectionMode="Multiple" AppendDataBoundItems="true" DataTextField="BranchName" DataValueField="Branchcode" OnSelectedIndexChanged="lst_SelectedIndexChanged">
                              <asp:ListItem Text="All" Value="0" />
                          </asp:CheckBoxList>

And coding in c#:-

C#

protected void lst_SelectedIndexChanged(object sender, EventArgs e)
   {
       foreach (ListItem li in lstBranch.Items)
       {
           if (lstBranch.SelectedIndex == 0)
           {
               if (li.Text != "All")
               {
                   li.Selected = true;
               }
           }

       }
   }

above code if i tick "ALL" all the checkbox list is selected. if i untick "ALL" remaining checkbox should remain in tick but i need if i untick all then all want to untick if i tick all want to tick and multiple also multiple selection also required without tick "ALL"

Posted 20-Mar-15 0:56am

JOTHI KUMAR Member 10918227

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Comments

Joan Magnet 20-Mar-15 7:04am

Please try to clarify what you want. It's a bit confusing.

JOTHI KUMAR Member 10918227 20-Mar-15 7:26am

simple if i tick "ALL" in list all the list item should be tick if i remove tick in "All" in list all the item should be in untick then without clicking "All" i need to select multiple selection also

For eg:
fruits like "ALL" list like 'apple','orange' like that ok
if i click fruits all lists want to tick,if i untick fruits all list want to untick ,if i want select only apple without tick fruits ok that all

F-ES Sitecore 20-Mar-15 7:42am

You reference two checklists, lst and lstBranch, but you only mention one list if your explanation and markup.

ZurdoDev 20-Mar-15 8:33am

Don't do it in C#. Google for javascript examples or jquery examples. There are tons of examples online.

1 solution

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

balajidileepkumar · Accepted Answer · 2015-03-20T03:19:00

XML

<asp:CheckBoxList ID="CheckBoxList1" runat="server" AutoPostBack="true" SelectionMode="Multiple" AppendDataBoundItems="true" DataTextField="BranchName" DataValueField="Branchcode" OnSelectedIndexChanged="lst_SelectedIndexChanged_1">
     <asp:ListItem Text="All" Value="0" />
     </asp:CheckBoxList>
    <asp:CheckBoxList ID="lstMain" runat="server" AutoPostBack="true" SelectionMode="Multiple" AppendDataBoundItems="true" DataTextField="BranchName" DataValueField="Branchcode" OnSelectedIndexChanged="lst_SelectedIndexChanged">
    <asp:ListItem  Text="1" Value="0" />
    <asp:ListItem  Text="2" Value="0" />
    <asp:ListItem  Text="3" Value="0" />
    </asp:CheckBoxList>

C#

protected void lst_SelectedIndexChanged_1(object sender, EventArgs e)
      {
          if (CheckBoxList1.Items[0].Selected == true)
          {
              foreach (ListItem ls in lstMain.Items)
              {
                  ls.Selected = true;

              }

          }
          else
          {
              foreach (ListItem ls in lstMain.Items)
              {
                  ls.Selected = false;

              }

          }
      }

how to check and uncheck all in checkboxlist in asp.net

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how to check and uncheck all in checkboxlist in asp.net

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