A step-by-step guide on extracting nested ASP.NET DataGrid values with JavaScript

Looking to retrieve data from a nested data grid on an aspx page using JavaScript.

Check out the following code snippet:

<tr>
    <td colspan="2" align="center">
        <asp:DataGrid ID="sampleData" AutoGenerateColumns="false" runat="server" OnItemDataBound="sampleData_ItemDataBound">
            <Columns>
                <asp:BoundColumn HeaderText="Name" DataField="Name" />
                <asp:BoundColumn HeaderText="City" DataField="City" />
                <asp:BoundColumn HeaderText="State" DataField="State" />
                <asp:TemplateColumn HeaderText="Inner Data">
                    <ItemTemplate>
                        <asp:DataGrid ID="innerData" AutoGenerateColumns="false" runat="server">
                            <Columns>
                                <asp:BoundColumn HeaderText="Name" DataField="Name" />
                                <asp:BoundColumn HeaderText="City" DataField="City" />
                                <asp:BoundColumn HeaderText="State" DataField="State" />
                            </Columns>
                        </asp:DataGrid>
                    </ItemTemplate>
                </asp:TemplateColumn>
            </Columns>
        </asp:DataGrid>
    </td>
</tr>
javascriptasp.netgrid

Answer №1

Observe the id assigned to the component when viewing the page source in browsers. It is likely generated with incremental numbers. I am unfamiliar with <asp:Datagrid>

Retrieve the component in JavaScript using 

document.getElementById('innerData')
and access the values accordingly.

If it is a table, you can access the cells using 

document.getElementById('innerData').getElementsByTagName('td');

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