asp.net - Display image in gridview depending on value of column -


i have gridview displays rows , columns linked sql statement... , works normal.

i want include new column, displays image depending on value of column is. if column has value - display image. if column value null no image whill displayed.

my sql like:

select c.call_id, title, a.call_id b_attach calls c  left join attachments on c.call_id = a.call_id  group c.call_id,title,description, a.call_id

what's returns sql is:

call_id | title | b_attach
1235 | title goes here | 1235
1382 | title |null

so if there's in b_attach - diplay image in gridview column, else display nothing in gridview column

my gridview: 

                        <asp:hyperlinkfield sortexpression="call_id" headertext="call id" datatextfield="call_id"                             datanavigateurlfields="call_id" datanavigateurlformatstring="showcall.aspx?id={0}" />                         <asp:hyperlinkfield sortexpression="title" headertext="title" datatextfield="title"                             datanavigateurlfields="call_id" datanavigateurlformatstring="showcall.aspx?id={0}" />                      </columns>

any ideas on how this?

you can use templatefield, and, inside this:

<asp:image runat="server" id="myimg" imageurl='<%# getimage(databinder.eval(container.dataitem, "b_attach")) >%' visible='<%# null != databinder.eval(container.dataitem, "b_attach") %> />

Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use
Read more