Recently I encounter question at the forums.asp.net asking if how to move selected ListItems from one CheckBoxList to another. So I decided to post the solution that I have provided in that thread so that others can refer if they will encounter the same thing.
Here’s the code block below:
ASPX:
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<table >
<tr>
<td>
<asp:CheckBoxList ID="CheckBoxList1" runat="server">
<asp:ListItem>Player1</asp:ListItem>
<asp:ListItem>Player2</asp:ListItem>
<asp:ListItem>Player3</asp:ListItem>
<asp:ListItem>Player4</asp:ListItem>
<asp:ListItem>Player5</asp:ListItem>
<asp:ListItem>Player6</asp:ListItem>
</asp:CheckBoxList></td>
<td><asp:Button ID="ButtonAdd" runat="server" Text=">>" onclick="ButtonAdd_Click" /><br />
<asp:Button ID="ButtonRemove" runat="server" Text="<<" onclick="ButtonRemove_Click" />
</td>
<td>
<asp:CheckBoxList ID="CheckBoxList2" runat="server">
</asp:CheckBoxList>
</td>
</tr>
</table>
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RELEVANT CODES:
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protected void ButtonAdd_Click(object sender, EventArgs e)
{
for (int i = CheckBoxList1.Items.Count - 1; i >= 0; i--)
{
if (CheckBoxList1.Items[i].Selected)
{
CheckBoxList2.Items.Add(CheckBoxList1.Items[i]);
CheckBoxList2.ClearSelection();
CheckBoxList1.Items.Remove(CheckBoxList1.Items[i]);
}
}
}
protected void ButtonRemove_Click(object sender, EventArgs e)
{
for (int i = CheckBoxList2.Items.Count - 1; i >= 0; i--)
{
if (CheckBoxList2.Items[i].Selected)
{
CheckBoxList1.Items.Add(CheckBoxList2.Items[i]);
CheckBoxList1.ClearSelection();
CheckBoxList2.Items.Remove(CheckBoxList2.Items[i]);
}
}
}
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That's it!