CheckBox And CheckBoxList

 CheckBox

Source

<asp:CheckBox ID="chkBox" runat="server" Text="Check Now..!" />

<asp:Button ID="btnCheckBox" runat="server" Text="Test" OnClick="btnCheckBox_Click" />

<asp:TextBox ID="txtCheck" runat="server" Style="font-weight: 700"></asp:TextBox>

C#

 

protected void btnCheckBox_Click(object sender, EventArgs e)

        {

            if (chkBox.Checked)

            {

                txtCheck.Text = "Checked";

            }

            else

            {

                txtCheck.Text = "Not Checked";

            }

        }

  CheckBox List

Source

<asp:CheckBoxList ID="chkLst" runat="server" Style="font-weight: 700">

<asp:ListItem Value="1">A</asp:ListItem>

<asp:ListItem Value="2">B</asp:ListItem>

</asp:CheckBoxList>

<asp:Button ID="btnChkLst" runat="server" Text="Check" OnClick="btnChkLst_Click" Style="font-weight: 700" />

<asp:TextBox ID="txtChkLst" runat="server" Style="font-weight: 700"></asp:TextBox>

                   

 

C#

protected void btnChkLst_Click(object sender, EventArgs e)

        {

            for (int i = 0; i < chkLst.Items.Count; i++)

            {

                if (chkLst.Items[i].Selected)

                {

                    txtChkLst.Text += chkLst.Items[i].Text;

                }

            }

        }