[Solved] To maintain the selection on checkboxes of hierarchy grid

[Carlos Eduardo Nogueira]

Hi!

I have a grid with hierarchy. The code you can see below:

<telerik:RadGrid ID="GridLocalidade" Width="100%" Skin="Telerik"

runat="server" AllowPaging="false" AllowSorting="true"

GridLines="None" AutoGenerateColumns="false"

OnNeedDataSource="GridLocalidade_NeedDataSource"

OnDetailTableDataBind="GridLocalidade_DetailTableDataBind">

<MasterTableView GridLines="None" DataKeyNames="IdTipoProcesso" Name="TableViewProcessos">

<DetailTables>

<telerik:GridTableView GridLines="None" Width="100%" CommandItemDisplay="None"

DataKeyNames="IdTipoProcesso" Name="TableViewProcLocalidades">

<ParentTableRelation>

<telerik:GridRelationFields DetailKeyField="IdTipoProcesso" MasterKeyField="IdTipoProcesso" />

</ParentTableRelation>

<Columns>

<telerik:GridBoundColumn UniqueName="IdTipoProcesso" HeaderText="IdProcesso" DataField="IdTipoProcesso" Visible="false" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left"></telerik:GridBoundColumn>

<telerik:GridBoundColumn UniqueName="IdCidade" HeaderText="IdLocalidade" DataField="Localidade.IdCidade" Visible="false" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left"></telerik:GridBoundColumn>

<telerik:GridBoundColumn UniqueName="NomeCidade" HeaderText="Localidade" DataField="Localidade.NomeCidade" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left"></telerik:GridBoundColumn>

<telerik:GridTemplateColumn UniqueName="CheckBoxTemplateColumn" DataType="System.Boolean" DataField="ControlaGente" HeaderStyle-Width="130px">

<HeaderTemplate>

<asp:CheckBox id="chkHeaderGente" OnCheckedChanged="ChkSelectedLocGente" AutoPostBack="True" runat="server"></asp:CheckBox> Controlar Gente

</HeaderTemplate>

<ItemTemplate>

<asp:CheckBox id="chkGente" runat="server" Checked='<%# (DataBinder.Eval(Container.DataItem, "ControlaGente")) %>'></asp:CheckBox>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn UniqueName="CheckBoxTemplateColumn" DataType="System.Boolean" DataField="ControlaRisco" HeaderStyle-Width="130px">

<HeaderTemplate>

<asp:CheckBox id="chkHeaderRisco" OnCheckedChanged="ChkSelectedLocRisco" AutoPostBack="True" runat="server"></asp:CheckBox> Planilha Risco

</HeaderTemplate>

<ItemTemplate>

<asp:CheckBox id="chkRisco" runat="server" Checked='<%# (DataBinder.Eval(Container.DataItem, "ControlaRisco")) %>'></asp:CheckBox>

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</telerik:GridTableView>

</DetailTables>

<Columns>

<telerik:GridBoundColumn UniqueName="Descricao" HeaderText="Tipos Processo" DataField="Descricao" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left"></telerik:GridBoundColumn>

<telerik:GridBoundColumn UniqueName="Sigla" HeaderText="Sigla" DataField="Sigla" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left" HeaderStyle-Width="150px"></telerik:GridBoundColumn>

<telerik:GridBoundColumn UniqueName="ProcessoCategoria.Descricao" HeaderText="Categoria Processo" DataField="ProcessoCategoria.Descricao" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left" HeaderStyle-Width="150px"></telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

In a GridTableView, I have 2 columns as checkbox. If I expand the items, select some checkboxes and after it, I collapse the items, I loose the selection on checkboxes when I decide expand them again, it's due to I always catch the information of items in a database when the user expand them.

Is there a possibility to maintain the selection of user for this scenario?

[Princy]

Hello Carlos Eduardo Nogueira,

You can try the approach given in following code library submission to retain the selected state of grid items in hierarchy and see if it helps:
Retain expanded/selected state in hierarchy on rebind

Thanks,
Princy.

 

[Carlos Eduardo Nogueira]

Hello Princy,

I saw this post but, if you try expand the items, select one of them and after collapse the items, when you expand the items again, you will loose the selection. I did in an example of " Retain expanded/selected state in hierarchy on rebind" in this manner.