一个关于LISTBOX很简单的问题！50分笑纳！！！

[modelbaby5]

两个LISTBOX，其中一个绑定数据，另一个无数据
两个按扭添加和删除
实现：当点有数据中的一项再点添加按扭时能把此项加入到另一个LISTBOX。删除也就是移除功能。
注：在WEB页面中实现，当点的是重复数据时不能重复添加到另一个LISTBOX。
哪位朋友帮忙写个小例子。小弟先谢谢了！

[lion533335]

ICollection CreateDataSource()
{
DataTable dt = new DataTable();

dt.Columns.Add(new DataColumn("ID", typeof(int)));
dt.Columns.Add(new DataColumn("Name", typeof(string)));
for (int i = 0; i < 6; i++)
{
DataRow dr = dt.NewRow();
dr[0] = i;
dr[1] = "姓名" + i.ToString();
dt.Rows.Add(dr);
}
DataView dv = new DataView(dt);
return dv;
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
sourceListBox.DataTextField = "Name";
sourceListBox.DataSource = CreateDataSource();
sourceListBox.DataBind();
}
}
//添加到另一个ListBox
protected void Button1_Click(object sender, EventArgs e)
{
ListItem sourceItem = sourceListBox.SelectedItem;
bool isExist = false;
foreach (ListItem item in destListBox.Items)
if (item.Text == sourceItem.Text)
isExist=true;
if (!isExist)
destListBox.Items.Add(sourceItem);
}
//删除
protected void Button2_Click(object sender, EventArgs e)
{
destListBox.Items.Remove(destListBox.SelectedItem);
}

[namhyuk]

建议放到UpdatePanel里。

[yhy0611]

protected void btnLeft_ServerClick(object sender, EventArgs e)
    {
        if (this.lstDept.SelectedIndex == -1)
        {
            return;
        }
        int index = this.lstDept.SelectedIndex;
        this.lstManager.Items.Add(new ListItem(this.lstDept.SelectedItem.Text, this.lstDept.SelectedItem.Value));
        this.lstDept.Items.RemoveAt(index);
        if (index != 0 && index < this.lstDept.Items.Count)
        {
            this.lstDept.SelectedIndex = index;
        }
        else if (index != 0 && index == this.lstDept.Items.Count)
        {
            this.lstDept.SelectedIndex = index - 1;
        }
        else if (index == 0 && this.lstDept.Items.Count > 0)
        {
            this.lstDept.SelectedIndex = 0;
        }
        this.lstManager.SelectedIndex = this.lstManager.Items.Count - 1;
        btnDisabledCheng();
    }
    protected void btnRight_ServerClick(object sender, EventArgs e)
    {
        if (this.lstManager.SelectedIndex == -1)
        {
            return;
        }
        int index = this.lstManager.SelectedIndex;
        this.lstDept.Items.Add(new ListItem(this.lstManager.SelectedItem.Text, this.lstManager.SelectedItem.Value));
        this.lstManager.Items.RemoveAt(index);
        if (index != 0 && index < this.lstManager.Items.Count)
        {
            this.lstManager.SelectedIndex = index;
        }
        else if (index != 0 && index == this.lstManager.Items.Count)
        {
            this.lstManager.SelectedIndex = index - 1;
        }
        else if (index == 0 && this.lstManager.Items.Count > 0)
        {
            this.lstManager.SelectedIndex = 0;
        }
        this.lstDept.SelectedIndex = this.lstDept.Items.Count - 1;
        btnDisabledCheng();
    }
    protected void btnLefts_ServerClick(object sender, EventArgs e)
    {
        if (this.lstDept.Items.Count == 0)
            return;
        for (int i = this.lstDept.Items.Count - 1; i >= 0; i--)
        {
            this.lstManager.Items.Add(new ListItem(this.lstDept.Items[i].Text, this.lstDept.Items[i].Value));
        }
        this.lstManager.SelectedIndex = this.lstManager.Items.Count - 1;
        this.lstDept.Items.Clear();
        btnDisabledCheng();
    }
    protected void btnRights_ServerClick(object sender, EventArgs e)
    {
        if (this.lstManager.Items.Count == 0)
            return;
        for (int i = this.lstManager.Items.Count - 1; i >= 0; i--)
        {
            this.lstDept.Items.Add(new ListItem(this.lstManager.Items[i].Text, this.lstManager.Items[i].Value));
        }
        this.lstDept.SelectedIndex = this.lstDept.Items.Count - 1;
        this.lstManager.Items.Clear();
        btnDisabledCheng();
    }

[viki117]

AJAX或者用DATASOUROS。。

[GhostAdai]

老衲笑衲了。