Display only the Checked Items in the CheckBoxList using C#.Net:

I have One CheckBox above the CheckBoxList and its Text as "Show only Selected Items".

My CheckBoxList has 10 items and three items as Selected.

But when I Check the CheckBox, I want to display onl开发者_JAVA技巧y the selected three items in the CheckBoxList. When I uncheck the CheckBox, I want to display all the 10 items and three items as selected.

How to do this?

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in the checked event of checkbox of "Show only Selected Items", do loop and check which is checked and if checkbox of checkboxlist is not selected then remove/visible false that item from checkboxlist.

void Check_Clicked(Object sender, EventArgs e) 
{
    if(chk.Items[i].Selected != true)
        chk.visibility = chk.checked;
}

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Your aspx page for each checkbox needs the onchecked change

  <asp:CheckBox OnCheckedChanged="Check_Clicked" runat="server" />

Your code behind.

  void Check_Clicked(Object sender, EventArgs e) 
  {
    //foreach checkbox in your checkbox list
    //checkbox.visibility = checkbox.checked;
  }

Something like this... this is kind of pseudo code but hopefully the logic behind it is what you're looking for.