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static dropdownlist in radgrid

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Grid

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

Tanvi asked on 17 Jan 2014, 10:09 AM

<telerik:RadDropDownList ID="RadDropDownList5" runat="server" AutoPostBack="true" DataValueField="category" SelectedValue='<%#Bind("category") %>' OnSelectedIndexChanged="category_selectedindexchaged" >

<Items>

<telerik:DropDownListItem Text="India" Value='India' />

<telerik:DropDownListItem Text="International" Value='International' />

</Items>

</telerik:RadDropDownList>

<telerik:RadDropDownList ID="RadDropDownList6" runat="server" >

</telerik:RadDropDownList>

i want to fill the items in second dropdownlist based on the selection from the first static dropdownlist. how can i do it??

2 Answers, 1 is accepted

answered on 17 Jan 2014, 01:14 PM

Hello,

If grid in edit mode :

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false" OnNeedDataSource="RadGrid1_NeedDataSource">

<MasterTableView>

<Columns>

<telerik:GridBoundColumn DataField="ID" HeaderText="ID" UniqueName="ID">

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn>

<EditItemTemplate>

<telerik:RadDropDownList ID="RadDropDownList5" runat="server" AutoPostBack="true" DataValueField="category" SelectedValue='<%#Bind("Name") %>' OnSelectedIndexChanged="category_selectedindexchaged">

<Items>

<telerik:DropDownListItem Text="India" Value='India' />

<telerik:DropDownListItem Text="International" Value='International' />

</Items>

</telerik:RadDropDownList>

<telerik:RadDropDownList ID="RadDropDownList6" runat="server">

</telerik:RadDropDownList>

</EditItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridEditCommandColumn>

</telerik:GridEditCommandColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)

{

DataTable dt = new DataTable();

dt.Columns.Add("ID", typeof(int));

dt.Columns.Add("Name", typeof(string));

dt.Columns.Add("Customdate", typeof(DateTime));

dt.Rows.Add(1, "India", DateTime.Now);

dt.Rows.Add(2, "India", DateTime.Now.AddYears(-1));

dt.Rows.Add(3, "International", DateTime.Now.AddYears(1));

RadGrid1.DataSource = dt;

}

protected void category_selectedindexchaged(object sender, DropDownListEventArgs e)

{

RadDropDownList RadDropDownList5 = sender as RadDropDownList;

GridEditFormItem item = RadDropDownList5.NamingContainer as GridEditFormItem;

RadDropDownList RadDropDownList6 = item.FindControl("RadDropDownList6") as RadDropDownList;

RadDropDownList6.Items.Add(new DropDownListItem("test1", "test1"));

RadDropDownList6.Items.Add(new DropDownListItem("test2", "test2"));

}

Normal Mode

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false" OnNeedDataSource="RadGrid1_NeedDataSource">

<MasterTableView>

<Columns>

<telerik:GridBoundColumn DataField="ID" HeaderText="ID" UniqueName="ID">

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn>

<ItemTemplate>

<Items>

<telerik:DropDownListItem Text="India" Value='India' />

<telerik:DropDownListItem Text="International" Value='International' />

</Items>

</telerik:RadDropDownList>

<telerik:RadDropDownList ID="RadDropDownList6" runat="server">

</telerik:RadDropDownList>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridEditCommandColumn>

</telerik:GridEditCommandColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)

{

DataTable dt = new DataTable();

dt.Columns.Add("ID", typeof(int));

dt.Columns.Add("Name", typeof(string));

dt.Columns.Add("Customdate", typeof(DateTime));

dt.Rows.Add(1, "India", DateTime.Now);

dt.Rows.Add(2, "India", DateTime.Now.AddYears(-1));

dt.Rows.Add(3, "International", DateTime.Now.AddYears(1));

RadGrid1.DataSource = dt;

}

protected void category_selectedindexchaged(object sender, DropDownListEventArgs e)

{

RadDropDownList RadDropDownList5 = sender as RadDropDownList;

GridDataItem item = RadDropDownList5.NamingContainer as GridDataItem;

RadDropDownList RadDropDownList6 = item.FindControl("RadDropDownList6") as RadDropDownList;

RadDropDownList6.Items.Add(new DropDownListItem("test1", "test1"));

RadDropDownList6.Items.Add(new DropDownListItem("test2", "test2"));

}

Thanks,
Jayesh Goyani