Find child controls inside a MultiView
[Finding a Label control inside a FormView which is a child control of MultiView]
Article Contents:
� Overview
� Section 1: Using MultiView and View in ASP.NET 2.0
� Section 2: Finding Child Controls inside MultiView
� Conclusion
Overview:
In ASP.NET 1.x, the Panel control was used to segregate controls into groups. Many developers would use a Panel to hide or show controls for a particular purpose. For instance, if the user clicked on a particular button, a DataGrid may appear. However, if the user clicked on a different button, a graph may appear.
In ASP.NET 2.0, the MultiView and View controls were introduced. The MultiView control acts as a stand-alone Panel-like control, or can be a container for multiple Panel-like controls called Views. Using the new MultiView control with the View control allows developers an even easier way to toggle between "Panels".
Section 1: Using MultiView and View in ASP.NET 2.0
Here is an example of using FormView inside the MultiView and View controls within ASP.NET 2.0:
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:MultiView id="MultiView1" runat="server" ActiveViewIndex=0>
<asp:View id="View1" runat="server">
Content Here (View 1)...
<asp:FormView ID="FormView1" runat="server"
DataSourceID="SqlDataSource1">
<ItemTemplate>
Field1:
<asp:Label ID="Field1Label" runat="server"
Text='<%# Bind("Field1") %>'></asp:Label><br />
Field2:
<asp:Label ID="Field2Label" runat="server"
Text='<%# Bind("Field2") %>'></asp:Label><br />
</ItemTemplate>
</asp:FormView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [Field1], [Field2] FROM [TestTable]">
</asp:SqlDataSource>
</asp:View>
<asp:View id="View2" runat="server">
Content Here (View 2)...
</asp:View>
<asp:View id="View3" runat="server">
Content Here (View 3)...
</asp:View>
</asp:MultiView>
<asp:Button ID="Button1" runat="server" Text="Button" />
</div>
</form>
</body>
</html>
Section 2: Finding Child Controls inside MultiView
In the above HTML content we have a label control with ID="Field1Label". We are going to find value in this particular label as follows. Following code executes in the button click event of button with ID="Button1".
Sub GetControlValue()
Section 1: Finding the first child control i.e. FormView
Dim FormView As FormView=CType(MultiView1.Views(0).FindControl("FormView1"), FormView)
Section 2: Finding the second child control i.e. Label
If FormView.CurrentMode = FormViewMode.ReadOnly Then
Dim Field1_Label As Label = CType(FormView.Row.FindControl("Field1Label"), Label)
Response.Write(Field1_Label.Text.ToString)
End If
Note: FormView have 3 different type of Templates.
1. ReadOnly Mode [ItemTemplate]
2. Edit Mode [Edit ItemTemplate]
3. Insert Mode [Insert ItemTemplate]
You should specify template of formview in which the control is embeded with formview property �CurrentMode� as above.
Protected Sub Button1_Click(ByVal sender _
As Object, ByVal e As System.EventArgs)Handles Button1.Click
GetControlValue()
End Sub
Conclusion
Hope you can find some use for this article.
