![Grid Grid](http://www.viblend.com/products/net/windows-forms/controls/images/gridview/fixed_hierarchies_horizontal_scroll.png)
Programmatically create a hierarchical grid that displays arbitrary number of child levels. Employees[i]; string name = row.FirstName + ' ' + row.LastName; radGridView1.MasterTemplate.Rows.Add(GetImageFromData(row.Photo), name, random.Next(45000), row.HireDate, row.Title, (random.Next(100) > 50), 'View');. Let's elaborate the previous application and allow updates to the hierarchical DataGrid. When you edit the rows in the DataGrid, your changes are automatically committed back to the DataSet, but are not yet sent to the data source. You'll need to add some code that sends your changes back to the database. It's quite simple. Items.Add method. The 'Add' method returns a HierarchyItem object. This allows you to add sub-items to the HierarchyItem because it has Items.Add method, too. The code below creates a 2-level Rows Hierarchy and can be used with the VIBlend DataGrid control for Silverlight, WPF and Windows Forms. Apr 19, 2011. Could you please add information about the MultiBinding, especially on a column of a DataGrid. I want to add button against each row of the datagrid in wpf 4.0. What about data binding whne you want a particular column in the grid to be able to accept drops from a treeview?
I have a Datagrid that nest a second datagrid in a template column. This second datagrid uses a createchildview as its datasource. So far, no problem.
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The datagrid populates as it should, expands with proper data. I select the row in the parent grid and know exactly which row I am on, but I can't figure out which row my child datagrid is on. I am unable to reference it in code, such as datagrid2 and while I am able to fire a public sub on select (As you can see in the code) I still can't figure out how to get the row. So I am, at least for now, stumped. Any help or ideas would be greatly appreciated. Thanks, Clint.
Aspx code - And the code behind. Public Sub child_Select(ByVal sender As Object, ByVal e As System.EventArgs) ' This is the line that doesn't work!!!! Please Refer below code and detail.
THis WIll help you fix error and put more effective way to show the child. The Concept While there are a number of examples of showing hierarchical data using the Master/Detail record concept, what I was looking for was the ability to display collapsible child rows under those of their parents in the same grid. Something similar to the way the Winforms DataGrid works when you feed it a hierarchical dataset. Unfortunately the ASP.NET DataGrid will only accept one of the tables within a hierachical dataset in its.DataBind method.
In order to work around this we need to create a single DataTable object that contains all the rows we want to show when all the nodes of the hierarchy are expanded. Along the way we will leave ourselves some clues in the DataTable rows that tell us which ones are parent nodes and which are children. Once we have created this specially formatted DataTable we can then bind it to the DataGrid, apply a few formatting functions, and presto; hierarchical data served up in an ASP.NET DataGrid control. Getting The Data The first thing we are going to need to get this job done is some hierarchical data.
For the purposes of this sample I chose to use the Northwind DB that comes with SQL Server as it is something that most developers have access to (no pun intended). Rather than just a simple parent child relationship I thought we would really push the envelope and try three levels. The tables we are going to work with are the Customers, Orders, and Order Details tables. As usual when accessing data we start by creating a connection object.
Hierarchical Data Grid View Add Rows
Seeing as we are connecting to a SQL Server database we can use the SQLClient Namespace and its objects to gain a little performance boost. I have declared a module level variable to contain my Connection object and then call the Open method in the Page's Load Handler. Private Sub PageLoad(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load If Not Page.IsPostBack Then If moConn.State ConnectionState.Open Then moConn.ConnectionString = (AppSettings('connectionString')) moConn.Open() End If LoadResults() End If End Sub The only piece of this code worth remarking on is the line where we set moConn.ConnectionString. All we are doing here is storing the connection string in the Web.Config file and accessing it through the System.Configuration.ConfigurationSettings.AppSettings object. I find this a handy trick so that the assembly doesn't need to be recompiled when the project is redeployed on another machine and the connection string changes. Once we have an open connection we call the LoadResults Sub and the real work begins.
Structure through hierarchy Pages should be structured in a hierarchical manner: • A Heading 1 is usually a page title or a main content heading. It is the most important heading, and there is generally just one. • A Heading 2 is usually a major section heading.