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Cascading RadComboBox inside of RadGrid

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Grid

This is a migrated thread and some comments may be shown as answers.

IMF asked on 24 Apr 2015, 11:52 AM

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Hello,

I have a radgrid with Batch Edit Mode activated, i have 5 columns: two with one comboBox and three with textBox. I need that one of the radComboBox bind the datasource of the other one attending at the value of the first radcomboBox:

ROW [ txtEtiqueta TextBoxFormato TextBoxAncho RadComboBoxAlineacion RadComboBoxMostrarTipo ]

This is the structure:

<telerik:RadGrid ID="RadGridPropiedadesMostrar" runat="server"

Height="245px" Width="99%" Culture="es-ES" Visible="true"

OnNeedDataSource="RadGridPropiedadesMostrar_NeedDataSource"

OnBatchEditCommand="RadGridPropiedadesMostrar_BatchEditCommand"

OnItemDataBound="RadGridPropiedadesMostrar_OnItemDataBound"

OnPreRender="RadGridPropiedadesMostrar_PreRender"

HeaderStyle-Font-Size="Small" HeaderStyle-ForeColor="Black"

MasterTableView-NoMasterRecordsText="Sin registros">

<ClientSettings>

<Scrolling AllowScroll="True" />

<Resizing ResizeGridOnColumnResize="false" AllowColumnResize="false" AllowResizeToFit="true" EnableRealTimeResize="true"></Resizing>

<Selecting AllowRowSelect="true" />

</ClientSettings>

<MasterTableView EditMode="Batch" AutoGenerateColumns="False" ShowHeadersWhenNoRecords="true">

<BatchEditingSettings EditType="Cell" OpenEditingEvent="Click" />

<Columns>

<telerik:GridBoundColumn UniqueName="CODIGOMOSTRAR" DataField="CODIGOMOSTRAR" HeaderText="CODIGOMOSTRAR" Visible="false" />

<telerik:GridBoundColumn UniqueName="CODIGOINFORME" DataField="CODIGOINFORME" HeaderText="CODIGOINFORME" Visible="false" />

<telerik:GridBoundColumn UniqueName="MOS_NOMBRE" DataField="MOS_NOMBRE" HeaderText="Nombre" Visible="false">

<ColumnValidationSettings EnableRequiredFieldValidation="true">

<RequiredFieldValidator ForeColor="Red" Text="*This field is required" Display="Dynamic">

</RequiredFieldValidator>

</ColumnValidationSettings>

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn UniqueName="MOS_ETIQUETA" DataField="MOS_ETIQUETA" HeaderText="Campo" Visible="true" ItemStyle-Width="35%">

<ItemTemplate>

<%#DataBinder.Eval(Container.DataItem, "MOS_ETIQUETA")%>

</ItemTemplate>

<EditItemTemplate>

<telerik:RadTextBox ID="txtEtiqueta" runat="server" Width="85%"></telerik:RadTextBox>

</EditItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn UniqueName="MOS_VISIBLE" DataField="MOS_VISIBLE" HeaderText="Visible" Visible="false" />

<telerik:GridTemplateColumn UniqueName="MOS_FORMATO" DataField="MOS_FORMATO" HeaderText="Formato" Visible="true" ItemStyle-Width="15%">

<ItemTemplate>

<%#DataBinder.Eval(Container.DataItem, "MOS_FORMATO")%>

</ItemTemplate>

<EditItemTemplate>

<telerik:RadTextBox ID="txtFormato" runat="server" Width="85%"></telerik:RadTextBox>

</EditItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn UniqueName="MOS_ANCHO" DataField="MOS_ANCHO" HeaderText="Ancho" Visible="true" ItemStyle-Width="15%">

<ItemTemplate>

<%#DataBinder.Eval(Container.DataItem, "MOS_ANCHO")%>

</ItemTemplate>

<EditItemTemplate>

<telerik:RadTextBox ID="txtAncho" runat="server" Width="85%"></telerik:RadTextBox>

</EditItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn UniqueName="MOS_AINEACION" DataField="MOS_AINEACION" HeaderText="Alineación" Visible="true" ItemStyle-Width="15%">

<ItemTemplate>

<%#DataBinder.Eval(Container.DataItem, "MOS_AINEACION")%>

</ItemTemplate>

<EditItemTemplate>

<telerik:RadComboBox runat="server" ID="RadComboBoxAlineacion" HighlightTemplatedItems="true" Width="85%">

</telerik:RadComboBox>

</EditItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn UniqueName="MOS_TIPO" DataField="MOS_TIPO" HeaderText="Tipo" Visible="true" ItemStyle-Width="15%">

<ItemTemplate>

<%#DataBinder.Eval(Container.DataItem, "MOS_TIPO")%>

</ItemTemplate>

<EditItemTemplate>

<telerik:RadComboBox runat="server" ID="RadComboBoxMostrarTipo" HighlightTemplatedItems="true" Width="85%">

</telerik:RadComboBox>

</EditItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

I create the datasource of the RadComboBoxMostrarTipo in PRERENDER like this:

protected void RadGridPropiedadesMostrar_PreRender(object sender, EventArgs e)

{

RadGridPropiedadesMostrar.Rebind();

RadComboBox combo2 = (RadGridPropiedadesMostrar.MasterTableView.GetBatchEditorContainer("MOS_TIPO") as Panel).FindControl("RadComboBoxMostrarTipo") as RadComboBox;

DataTable table2 = new DataTable();

table2.Columns.Add("MOS_TIPO", typeof(int));

table2.Columns.Add("TIPO", typeof(string));

string[] tipos = {"Texto", "Entero", "Doble", "Fecha", "Booleano" };

DataRow row2 = null;

for (int i = 0; i < tipos.Length; i++)

{

row2 = table2.NewRow();

row2["MOS_TIPO"] = i.ToString();

row2["TIPO"] = tipos[i];

table2.Rows.Add(row2);

}

combo2.DataTextField = "TIPO";

combo2.DataValueField = "MOS_TIPO";

combo2.DataSource = table2;

combo2.DataBind();

}

I need to bind the RadComboBoxAlineacion depending of the data loaded in RadComboBoxMostrarTipo when i load each row

Any idea? Thanks!

Cascading RadComboBox inside of RadGrid

3 Answers, 1 is accepted