Hi...

I try ASPxTreeList and I have problem..

I test Drag in Drop....

see:

        protected void ASPxTreeList_ProcessDragNode(object sender, DevExpress.Web.ASPxTreeList.TreeListNodeDragEventArgs e)
        {
            ASPxTreeList.MoveNode(e.Node.Key, e.NewParentNode.Key);
        }

and...

<dxwtl:ASPxTreeList ID="ASPxTreeList" runat="server"
            CssFilePath="~/App_Themes/Youthful/{0}/styles.css" CssPostfix="Youthful"
            Width="1000px" KeyFieldName="IDLOTACAO" ParentFieldName="LOTACAOSUPERIOR"
            PreviewFieldName="DESCRICAOLOTACAO" AutoGenerateColumns="False"
            onprocessdragnode="ASPxTreeList_ProcessDragNode">
            <Styles CssFilePath="~/App_Themes/Youthful/{0}/styles.css"
                CssPostfix="Youthful">
            </Styles>
            <Images ImageFolder="~/App_Themes/Youthful/{0}/">
                <CollapsedButton Height="9px"
                    Url="~/App_Themes/Youthful/TreeList/CollapsedButton.png" Width="9px" />
                <ExpandedButton Height="9px"
                    Url="~/App_Themes/Youthful/TreeList/ExpandedButton.png" Width="9px" />
                <CustomizationWindowClose Height="13px" Width="13px" />
            </Images>
            <SettingsText LoadingPanelText="Aguarde..." />
            <SettingsLoadingPanel Text="Aguarde..." />
            <SettingsPager>
                <AllButton>
                    <Image Height="15px" Width="21px" />
                </AllButton>
                <FirstPageButton>
                    <Image Height="15px" Width="21px" />
                </FirstPageButton>
                <LastPageButton>
                    <Image Height="15px" Width="21px" />
                </LastPageButton>
                <NextPageButton>
                    <Image Height="15px" Width="16px" />
                </NextPageButton>
                <PrevPageButton>
                    <Image Height="15px" Width="16px" />
                </PrevPageButton>
            </SettingsPager>
            <SettingsEditing AllowNodeDragDrop="True" />
            <Columns>
                <dxwtl:TreeListTextColumn Caption="Descrição da Lotação"
                    FieldName="DESCRICAOLOTACAO" Name="DESCRICAOLOTACAO" ReadOnly="True"
                    VisibleIndex="0">
                </dxwtl:TreeListTextColumn>
            </Columns>
        </dxwtl:ASPxTreeList>

But the message error when i "drag in drop" this...

An unhandled exception of type 'System.StackOverflowException' occurred in DevExpress.Web.ASPxTreeList.v8.2.dll

Hi,

It is required that you implement a custom node moving logic in the ProcessDragNode event handler.
By calling the MoveNode method, the event is raised again, and as a result, you get a stack overflow.

Thanks Friend!

But I need more information...

For move node is required  ASPxClientTreeList.StartDragNode AND ASPxClientTreeList.EndDragNode?

Now..other question is great...hehe What code I use in ASPxClientTreeList.StartDragNode AND ASPxClientTreeList.EndDragNode?

I using ProcessDragNode for update my datatable...

No, these events (StartDragNode and EndDragNode) are not required.

Hi Friend!

I have other problem... =)

Message diolog about "don`t support method" finished! But when move node, this node disappears.

See my code:

        <dxwtl:ASPxTreeList ID="ASPxTreeList" runat="server"
            CssFilePath="~/App_Themes/Youthful/{0}/styles.css" CssPostfix="Youthful"
            Width="350px" KeyFieldName="CodigoAtividade"
            ParentFieldName="CodigoAtividadePai" AutoGenerateColumns="False"
            onprocessdragnode="ASPxTreeList_ProcessDragNode">
            <Styles CssFilePath="~/App_Themes/Youthful/{0}/styles.css"
                CssPostfix="Youthful">
            </Styles>
            <Images ImageFolder="~/App_Themes/Youthful/{0}/">
                <CollapsedButton Height="9px"
                    Url="~/App_Themes/Youthful/TreeList/CollapsedButton.png" Width="9px" />
                <ExpandedButton Height="9px"
                    Url="~/App_Themes/Youthful/TreeList/ExpandedButton.png" Width="9px" />
                <CustomizationWindowClose Height="13px" Width="13px" />
            </Images>
            <SettingsText LoadingPanelText="Aguarde..." />
            <SettingsLoadingPanel Text="Aguarde..." />
            <SettingsPager>
                <AllButton>
                    <Image Height="15px" Width="21px" />
                </AllButton>
                <FirstPageButton>
                    <Image Height="15px" Width="21px" />
                </FirstPageButton>
                <LastPageButton>
                    <Image Height="15px" Width="21px" />
                </LastPageButton>
                <NextPageButton>
                    <Image Height="15px" Width="16px" />
                </NextPageButton>
                <PrevPageButton>
                    <Image Height="15px" Width="16px" />
                </PrevPageButton>
            </SettingsPager>
            <SettingsEditing AllowNodeDragDrop="True" />
            <Columns>
                <dxwtl:TreeListTextColumn Caption="Atividade"
                    FieldName="Atividade" Name="Atividade" ReadOnly="True"
                    VisibleIndex="0" Width="300px">
                </dxwtl:TreeListTextColumn>
                <dxwtl:TreeListCheckColumn Caption="Status" FieldName="Status" Name="Status"
                    VisibleIndex="1" Width="50px">
                </dxwtl:TreeListCheckColumn>
            </Columns>
        </dxwtl:ASPxTreeList>

        protected void ASPxTreeList_ProcessDragNode(object sender, DevExpress.Web.ASPxTreeList.TreeListNodeDragEventArgs e)
        {

            LotacaoDataSet.AtividadesDataTable dt = new LotacaoDataSet.AtividadesDataTable();

            LotacaoDataSet.AtividadesRow[ atividadesRows = (LotacaoDataSet.AtividadesRow[)Atividades.Select("CodigoAtividade = " + e.Node.Key);
            if (atividadesRows.Length == 0) return;
            dt = Atividades;
            dt.RemoveAtividadesRow(atividadesRows[0]);

            if (string.IsNullOrEmpty(e.NewParentNode.Key))
                atividadesRows[0].SetCodigoAtividadePaiNull();
            else
                atividadesRows[0].CodigoAtividade = int.Parse(e.NewParentNode.Key);

            dt.ImportRow(atividadesRows[0]);
            Atividades = dt;


            e.Handled = true;

           
            ASPxTreeList.DataSource = Atividades;
            ASPxTreeList.DataBind();

        }