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TreeView Custom Item (Template Item) Drag and Drop Options
Bruno
Posted: Friday, September 26, 2008 1:03:01 PM
Rank: Newbie
Groups: Member

Joined: 9/26/2008
Posts: 2
Hi,

My problem is that I have a treeview where I use the TemplateItem to bind. This is Ok, but now the drag and drop stopped. Can anyone help me? My code has showe above.

Thanks,

Code: HTML/ASPX
<TopGroup Style-CssText="background-image:url(00020005);border-left-color:#e0e0e0;border-left-style:solid;border-left-width:1px;border-right-color:#e0e0e0;border-right-style:solid;border-right-width:1px;border-top-color:#e0e0e0;border-top-style:solid;border-top-width:1px;cursor:hand;font-family:Verdana;font-size:11px;padding-bottom:2px;padding-left:10px;padding-right:10px;padding-top:2px;">
			<TemplateItem>
				<CustomItem>
					<asp:CheckBox CssClass="normal" Runat="server" Text='<%#((DataRowView)Container.DataItem)["Country"]%>' style="white-space:nowrap" ID="Checkbox1">
					</asp:CheckBox>
				</CustomItem>
				<SubMenu>
					<TemplateItem>
						<CustomItem>
							<asp:CheckBox CssClass="normal" Runat="server" Text='<%#((DataRowView)Container.DataItem)["State"]%>' style="white-space:nowrap" ID="Checkbox2">
							</asp:CheckBox>
						</CustomItem>
						<SubMenu>
							<TemplateItem>
								<CustomItem>
									<asp:CheckBox CssClass="normal" Runat="server" Text='<%#((DataRowView)Container.DataItem)["City"]%>' style="white-space:nowrap" ID="Checkbox3">
									</asp:CheckBox>
								</CustomItem>
							</TemplateItem>
						</SubMenu>
					</TemplateItem>
				</SubMenu>
			</TemplateItem>
		</TopGroup>


Code: C#
List<Cliente> lis = new List<Cliente>();
        lis.Add(new Cliente("A", "B", "C", new CC("NOME")));
        lis.Add(new Cliente("A1", "B3", "Cd", new CC("NOME1")));
        lis.Add(new Cliente("A2", "B4", "Cx", new CC("NOME2")));
        TreeView1.DataSource = lis;
        TreeView1.DataFields = "A|B|Clc.Nome";
        TreeView1.DataBind();

public class CC
{
    string nome;
    public CC(string pn)
    {
        Nome = pn;
    }
    public string Nome
    {
        get { return nome; }
        set { nome = value; }
    }
}

public class Cliente
{
    CC clc;

    public CC Clc
    {
        get { return clc; }
        set { clc = value; }
    }    

    string a;

    public string A
    {
        get { return a; }
        set { a = value; }
    }
    string b;
    string c;

    public string B
    {
        get { return b; }
        set { b = value; }
    }

    public string C
    {
        get { return c; }
        set { c = value; }
    }

    public Cliente(string pA, string pB, string pC, CC ccc)
    {
        A = pA;
        B = pB;
        C = pC;
        Clc = ccc;
    }
}
eo_support
Posted: Friday, September 26, 2008 1:09:35 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,092
Hi,

I am not sure whether CustomItem works with drag and drop. But why do you use CustomItem for this? The TreeView supports built-in checkboxes. Just set the TreeView's CheckBoxImages.Visible to True.

Thanks!
Bruno
Posted: Friday, September 26, 2008 1:14:55 PM
Rank: Newbie
Groups: Member

Joined: 9/26/2008
Posts: 2
Hi,

I'm sorry but I need this because a have a hierachical objects and the data fields don't work. I tried to use TreeView1.DataFields = "A|B|Clc.Nome" but the last field don't work. Have another way to bind this objects?

Thanks,
eo_support
Posted: Friday, September 26, 2008 1:20:09 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,092
Hi,

I don't think CustomItem would address the DataField issue for you. To address the DataField issue, you would add another property to your Cliente class so that you don't use "c.Nome", but use one property such as "C_Nome".

Thanks


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