http://www.html5rocks.com/

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So I figure, why not post my collections of puzzles on my blog and here is the first blog post for my new Puzzles category. Of course, I will be busy for a few days solving those puzzles but when I get the chance, I will post pictures of my collections.

yeah~

.aspx

</code>

<asp:GridView runat="server" ID="gvComments" AutoGenerateColumns="false" DataKeyNames="ID" >

 <Columns>
 <asp:TemplateField HeaderText="Strength">
 <ItemTemplate>
 <asp:CheckBox runat="server" ID="ckbStrength" />
 <cc1:MutuallyExclusiveCheckBoxExtender runat="server" ID="mecbeStrength" Key="chkSAI" TargetControlID="ckbStrength" />
 </ItemTemplate>
 </asp:TemplateField>

 <asp:BoundField Headertext="Common Comments (Optional)" ItemStyle-Wrap="false" DataField="Comment" ItemStyle-HorizontalAlign="Center"/>

 <asp:TemplateField HeaderText="Areas for Improvements" HeaderStyle-Width="10px" ItemStyle-VerticalAlign="Middle" ItemStyle-HorizontalAlign="Center">
 <ItemTemplate>
 <asp:CheckBox runat="server" ID="ckbAI" />
 <cc1:MutuallyExclusiveCheckBoxExtender runat="server" ID="mecbeAI" Key="chkSAI" TargetControlID="ckbAI" />
 </ItemTemplate>
 </asp:TemplateField>
 </Columns>

</asp:GridView>

<code>

.aspx.vb

Protected Sub gvComments_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvComments.RowDataBound

 If e.Row.RowType <> DataControlRowType.DataRow Then Exit Sub

 'Declare mutuallyExclusiveCheckboxExtender variable
 Dim rowView As DataRowView = e.Row.DataItem
 Dim mecbeStrength, mecbeAI As AjaxControlToolkit.MutuallyExclusiveCheckBoxExtender
 'Assign controls to variable
 mecbeStrength = e.Row.FindControl("mecbeStrength")
 mecbeAI = e.Row.FindControl("mecbeAI")
 'Assign key+DataItemIndex to control
 mecbeStrength.Key = "chkSAI" & e.Row.DataItemIndex
 mecbeAI.Key = "chkSAI" & e.Row.DataItemIndex

 End Sub

• EnableViewState: A Boolean property signaling whether the control persists its view state (and the view state of any child controls it contains) to the requesting client. The default value is true.

• ID: A string value identifying the control on the page.

• Mode: A value that specifies how the content in the Literal control is rendered on the requesting client. The legal mode values include PassThrough, Encode, and Transform. PassThrough is the default value, as it passes through the text to the client. The Encode option converts the text into an HTML-encoded string before passing it to the client. Transform depends on the type of markup used, as it removes any elements not supported by the requesting client.

• Text: The caption displayed in the Literal control. This text is passed directly to the browser page when rendered by ASP.NET.

• Visible: A Boolean property signaling whether the control is displayed on the page when it is rendered. The default value is true.

Example:
I needed to turn the Static text from the literal control into a link that opens up a popup page. By using Literal instead of linkbutton, I prevented the postback that you normally get with linkbutton.

<asp:Literal runat="server" ID="literal" />

Code: The Code passes two variables to the literal link.

Public Sub Literal()
Dim x, y As Integer
x = ViewState("Activity")
y = ViewState("EditID")

Display a simple link:
literal.Text = "<a href='Log_CredsReqPopup.aspx?MiscCredID=" & x & "&RequestID=" & y & "'target='_blank'>Optional SLO</a>"

Display a simple link with onclick:
literal.Text = "<a href=""#"" onclick=""window.open('Log_CredsReqPopup.aspx?MiscCredID=" & ViewState("Activity") & "&RequestID=" & ViewState("EditID") & "','Log_CredsReqPopup','scrollbars=yes,width=400,height=650,resizable=no')"">Optional SLO</a>"

Display a button:
literal.text = "<input type='button' text='Optional SLO' onclick=""window.open('Log_CredsReqPopup.aspx?MiscCredID=" & ViewState("Activity") & "&RequestID=" & ViewState("EditID") & "','Log_CredsReqPopup','scrollbars=yes,width=400,height=650,resizable=no')"">"

End Sub

Sorry for the lack of explanations, as I am still learning myself.

Dim PopUpScript As String

PopUpScript = “javascript: window.open(‘Popup.aspx?’,'popupage’,’scrollbars=yes,width=790,height=510,resizable=no,left=10′)”

ScriptManager.RegisterStartupScript(Me, Me.GetType(), “PopUpScript”, PopUpScript, True)

To pass a variable ID to the next page, I use:

PopUpScript = “javascript: window.open(‘Popup.aspx?ID=1′,’popupage’,’scrollbars=yes,width=790,height=510,resizable=no,left=10′)”

2nd Method

Protected Sub lnkbutton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkbutton.Click

lnkbutton.Attributes.Add(“onclick”, “window.open(‘http://www.yahoo.com’,'null’,'height=768, width=1024,status= no, resizable=yes, scrollbars=yes, toolbar=no,location=no,menubar=no ‘);”)
End Sub

Source: csharpfriends