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.NET Forum / ASP.NET / General / October 2007<#% eval %> - possible?
Is it possible to do this in the HTML of the aspx page? <#% if Eval("Name") != null %> write something here <#% else %> show message for missing name <#% end if %> when I try this I get errors for missing (, or IF is not recognized, etc. how can I get this to work without adding it to the code behind? I need to do this in a GridView that is using template fields with links in the fields I am not sure if this is possible but I recommend you avoid this style of coding. Put all code in your code behind page so you have a clean separation of layers. Is it possible to do this in the HTML of the aspx page? <#% if Eval("Name") != null %> write something here <#% else %> show message for missing name <#% end if %> when I try this I get errors for missing (, or IF is not recognized, etc. how can I get this to work without adding it to the code behind? I need to do this in a GridView that is using template fields with links in the fields I would rather not do this either but the grid is binding to a dataset and I really can't teak with that too much >I am not sure if this is possible but I recommend you avoid this style of >coding. Put all code in your code behind page so you have a clean [quoted text clipped - 13 lines] > to do this in a GridView that is using template fields with links in the > fields no. <%# %> is a binding expression and can only be used to specify a property value of a server control (prop="<%# expression%>"). also it must be an expression, not a statement. you gave no sample of what you are trying to do, so its hard to give an answer. -- bruce (sqlwork.com) > Is it possible to do this in the HTML of the aspx page? > [quoted text clipped - 10 lines] > to do this in a GridView that is using template fields with links in the > fields you gave no sample of what you are trying to do, so its hard to give an > answer. yeah I did: it was in my first post: I need to show an particular image if the person exists in the db or not and the developer that created this page is using a dataset to bind the grid but in the html is using template fields and is using the <%# %> for every template field in the grid. <#% if Eval("Name") != null %> write something here <#% else %> show message for missing name <#% end if %> > no. <%# %> is a binding expression and can only be used to specify a > property value of a server control (prop="<%# expression%>"). also it must [quoted text clipped - 16 lines] >> to do this in a GridView that is using template fields with links in the >> fields You will have to create your own function for that in a code behind like public string GetName(object objName) { if( objName == null ) return "No Name"; else return (string)objName; } and call it <%# GetName(Eval("Name")) %> George Is it possible to do this in the HTML of the aspx page? <#% if Eval("Name") != null %> write something here <#% else %> show message for missing name <#% end if %> when I try this I get errors for missing (, or IF is not recognized, etc. how can I get this to work without adding it to the code behind? I need to do this in a GridView that is using template fields with links in the fields OK, I'll give it a shot, and see if it will show the correct image based on the value passed to the routine You will have to create your own function for that in a code behind like public string GetName(object objName) { if( objName == null ) return "No Name"; else return (string)objName; } and call it <%# GetName(Eval("Name")) %> George "Mike" <Mike@community.nospam.com> wrote in message news:Olv0dbeBIHA.4476@TK2MSFTNGP06.phx.gbl... Is it possible to do this in the HTML of the aspx page? <#% if Eval("Name") != null %> write something here <#% else %> show message for missing name <#% end if %> when I try this I get errors for missing (, or IF is not recognized, etc. how can I get this to work without adding it to the code behind? I need to do this in a GridView that is using template fields with links in the fields That is how I always do. Also I usually put those type of functions into <script runat=server"> on the aspx page itself rather than have them in .CS files Since I think they relate to GUI. Except the cases when I need to have standardized output across web site. I usually have static functions in my clsGlobal: OutputDate(), OutputMoney(). Thus I can switch my date format or currency in one place for every page pretty painlessly. George. OK, I'll give it a shot, and see if it will show the correct image based on the value passed to the routine "George Ter-Saakov" <gt-nsp@cardone.com> wrote in message news:%23opuFOpBIHA.4496@TK2MSFTNGP06.phx.gbl... You will have to create your own function for that in a code behind like public string GetName(object objName) { if( objName == null ) return "No Name"; else return (string)objName; } and call it <%# GetName(Eval("Name")) %> George "Mike" <Mike@community.nospam.com> wrote in message news:Olv0dbeBIHA.4476@TK2MSFTNGP06.phx.gbl... Is it possible to do this in the HTML of the aspx page? <#% if Eval("Name") != null %> write something here <#% else %> show message for missing name <#% end if %> when I try this I get errors for missing (, or IF is not recognized, etc. how can I get this to work without adding it to the code behind? I need to do this in a GridView that is using template fields with links in the fields it worked for my scenario, thanks. I'll keep that in mind for the future, thanks That is how I always do. Also I usually put those type of functions into <script runat=server"> on the aspx page itself rather than have them in .CS files Since I think they relate to GUI. Except the cases when I need to have standardized output across web site. I usually have static functions in my clsGlobal: OutputDate(), OutputMoney(). Thus I can switch my date format or currency in one place for every page pretty painlessly. George. "Mike" <Mike@community.nospam.com> wrote in message news:%23rMpyWpBIHA.1056@TK2MSFTNGP03.phx.gbl... OK, I'll give it a shot, and see if it will show the correct image based on the value passed to the routine "George Ter-Saakov" <gt-nsp@cardone.com> wrote in message news:%23opuFOpBIHA.4496@TK2MSFTNGP06.phx.gbl... You will have to create your own function for that in a code behind like public string GetName(object objName) { if( objName == null ) return "No Name"; else return (string)objName; } and call it <%# GetName(Eval("Name")) %> George "Mike" <Mike@community.nospam.com> wrote in message news:Olv0dbeBIHA.4476@TK2MSFTNGP06.phx.gbl... Is it possible to do this in the HTML of the aspx page? <#% if Eval("Name") != null %> write something here <#% else %> show message for missing name <#% end if %> when I try this I get errors for missing (, or IF is not recognized, etc. how can I get this to work without adding it to the code behind? I need to do this in a GridView that is using template fields with links in the fields 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 ...
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