In this post going to share to code-sample for the Add and Remove items form one ListBox to another ListBox in asp.net with c#.
Some time before, i have needed to add and remove to user role as per your requirements and update the user role in the database.
Table of Constants
1. In the 1st step, code-sample for aspx page.
2. In the 2nd step, code-sample for C# (.cs page).
In the 1st step, .aspx code-sample
In the 2nd step, .aspx.cs code-sample.
Some time before, i have needed to add and remove to user role as per your requirements and update the user role in the database.
Table of Constants
1. In the 1st step, code-sample for aspx page.
2. In the 2nd step, code-sample for C# (.cs page).
In the 1st step, .aspx code-sample
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
<asp:ListBox runat="server"
ID="listBoxRoles1" SelectionMode="Multiple"></asp:ListBox>
<asp:Button ID="btn_Add"
runat="server"
Text="Add"
onclick="btn_Add_Click"
/>
<asp:Button ID="btn_Remove"
runat="server"
Text="Remove"
onclick="btn_Remove_Click"/>
<asp:ListBox runat="server"
ID="listBoxRoles2" SelectionMode="Multiple"></asp:ListBox>
</asp:Content>
In the 2nd step, .aspx.cs code-sample.
/// <summary>
/// Button used for add items in listBox.
/// </summary>
protected void
btn_Add_Click(object sender, EventArgs e)
{
for (var i =
listBoxRoles1.Items.Count - 1; i >= 0; i--)
{
if (!listBoxRoles1.Items[i].Selected) continue;
listBoxRoles2.Items.Add(listBoxRoles1.Items[i]);
listBoxRoles1.Items.Remove(listBoxRoles1.Items[i]);
}
}
/// <summary>
/// Button used for remove items in listBox.
/// </summary>
protected void
btn_Remove_Click(object sender, EventArgs e)
{
for (var i =
listBoxRoles2.Items.Count - 1; i >= 0; i--)
{
if (!listBoxRoles2.Items[i].Selected) continue;
listBoxRoles1.Items.Add(listBoxRoles2.Items[i]);
listBoxRoles2.Items.Remove(listBoxRoles2.Items[i]);
}
}
In the above list-boxes, you can bind the data-source for add and remove items from this ListBox.
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