 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
.NET Forum / ASP.NET / General / February 2008writing parameter dynamically
Hi All How can i write dynamic parameter for a java script function in<asp:image> tag? for static usage like ; onmouseover="ChangePicture('images/blue.gif')" works fine. I have to use single quotes because the parameter must be string. If i try like that; onmouseover='<%# "ChangePicture('" + Eval("BIG_PICTURE_PATH") + "')" %>' it raises "The server tag is not well formed" error .... What should I do? Thanks, Adam Try something like the following: '<%# DataBinder.Eval(Container.DataItem,"BIG_PICTURE_PATH","ChangePicture('{0}');") %>' This databinding expression uses a format string as the third parameter. I usually find it easier to use simple format strings like this when I want to include other text along with the value being databound (there are less quotes that get nested inside of each other, as well as making the need for concatenation much less common). For more details on databinding expressions and format strings, see the documentation.  SignatureNathan Sokalski njsokalski@hotmail.com http://www.nathansokalski.com/ > Hi All > [quoted text clipped - 17 lines] > > Adam Hi Nathan, It does not work, still same problem.. the single quotes in '{0}' causes the error "The server tag is not well formed" error , if i remove the single quotes no error occurred but function gets error... Adam, You should be able to use double quotes instead of single quotes around the {0} but you'll have to double up the double quotes like this: ""{0}"" Regards, S. Justin Gengo Free code and component libraries at: http://www.aboutfortunate.com > Hi Nathan, > > It does not work, still same problem.. > the single quotes in '{0}' causes the error "The server tag is not well > formed" error , > if i remove the single quotes no error occurred but function gets error... What is the complete code for the tag in the *.aspx file? When I use things the way I showed you, even with single quotes, they work perfectly. What is the complete exact text of the error message? I am wondering if it is possible that the error is referring to a different server tag. SignatureNathan Sokalski njsokalski@hotmail.com http://www.nathansokalski.com/ > Hi Nathan, > > It does not work, still same problem.. > the single quotes in '{0}' causes the error "The server tag is not well > formed" error , > if i remove the single quotes no error occurred but function gets error... Hello Adam With a htmlcontrol img (tag <img .. /> <asp:FormView ID="FormView1" runat="server"... <ItemTemplate>... <img src="/images/image1.jpg" onmouseover="<%# String.Concat("ChangePicture('", Eval("BIG_PICTURE_PATH"), "');") %>" / the render is <img src="/images/image1.jpg" onmouseover="ChangePicture('/ images/OtherImage.jpg');" /> But, if you have webcontrol Image... <asp:FormView ID="FormView1" runat="server"... <ItemTemplate>... <asp:Image runat="server" ID="imgExample" ImageUrl="~/ images/image1.jpg" /> and into codebehind, in ItemCreated method Protected Sub FormView1_ItemCreated(ByVal sender As Object, ByVal e As System.EventArgs) Handles FormView1.ItemCreated Dim pathImagen As String = CType(FormView1.DataItem, Data.DataRowView).Item("CategoryID").ToString Dim imgExample As Image = CType(FormView1.FindControl("imgExample"), Image) imgExample.Attributes.Add("onmouseover", "ChangePicture('" & pathImagen & "');") End Sub the render id <img id="ctl00_contenidoCentral_FormView1_imgExample" onmouseover="ChangePicture('/images/OtherImage.jpg');" src="../images/ image1.jpg" ... Links -------------- WebControl.Attributes Property Gets the collection of arbitrary attributes (for rendering only) that do not correspond to properties on the control. http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.webcontrol.at tributes(VS.80).aspx ______________________ Jose A. Fernandez blog: http://geeks.ms/blogs/fernandezja > What is the complete code for the tag in the *.aspx file? When I use things > the way I showed you, even with single quotes, they work perfectly. What is [quoted text clipped - 10 lines] > > formed" error , > > if i remove the single quotes no error occurred but function gets error... Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
|
Reply to this Message
|
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.