I have a gridview which displays rows and columns all linked to an sql statement... and all works as normal.
I want to include a new column, that displays an image depending on what the value of the column is. If the column has a value - it will display an image. If the column value is null no image whill be displayed.
My sql is something like:
SELECT c.call_id, title, a.call_id as b_attach FROM calls c LEFT JOIN attachments a ON c.call_id = a.call_id GROUP BY c.call_id,title,description, a.call_id
What's returns from this sql is:
Call_id | title | b_attach 1235 | title goes here | 1235 1382 | another title |NULL
So if there's something in b_attach - diplay image in gridview column, else display nothing in gridview column
I have a gridview and would like to display one of 5 icons depending on the value returned from the database for that row (simply just A, B, C, D or E). Which event in my datagrid should I be looking at to check what value I'm getting? I presume once I can check a value I can simply set an image source using if statements?
My query is that I have an sql field for image with db type "Image" , now I have successfully inserted some images in the form of bytes, now how to read those bytes of image from database and convert, show in gridview?
I have a database, one field is named "clicked" with values 0 or 1.
When the gridview is displayed I would like to show the value from the field "clicked" to be displayed as an image (example: instead of 0 to display and for 1 to display)
I am trying to bypass the ConfirmButtonExtender depending on the value of another field in the page. Basically, when a user click on my "Cancel" button, I normally display a modalpopup using the confirmbuttonextender and the modalpopupextender to display a dialog box confirming that they wish to cancel any changes they have made and return to the prior screen. If they click Yes, the button's onclick event fires which calls some code in the codebehind and redirects the user to another page. If they click no, it just returns to the same page, with no changes. However, in some situations, I know that my user is unable to perform any edits (they aren't allowed to) and for those users, I don't want to display the "Are you sure you want to leave you will loose any changes" dialog box. I've set a hidden checkbox field named "cbAllowEdit" to indicate whether the user is allowed to edit the fields or not. I was trying to use the technique found at link text to get this working but it just doesn't even seem to be firing the button's onclientclick event at all.
ASPX & Javascript <asp:CheckBox ID="cbAllowEdit" runat="server" Checked="true" /> <asp:Button ID="btnCancel" runat="server" CausesValidation="false" OnClick="btnCancel_Click" Text="Cancel" OnClientClick="disableSubmit();return false;" /> <ajaxToolKit:ConfirmButtonExtender ID="ConfirmButtonExtenderbtnCancel" runat="server" DisplayModalPopupID="ModalPopupExtenderbtnCancel" TargetControlID="btnCancel" BehaviorID="ConfirmButtonExtenderbtnCancel" /> <ajaxToolKit:ModalPopupExtender ID="ModalPopupExtenderbtnCancel" runat="server" BackgroundCssClass="modalBackground" CancelControlID="btnCancelCancel" OkControlID="btnConfirmCancel" PopupControlID="ConfirmCancelPanel" TargetControlID="btnCancel" /> <asp:Panel ID="ConfirmCancelPanel" runat="server" CssClass="modalWindow" Height="200" Width="450"> <p class="confirmMessage"> Are you sure you want to navigate away from this record? </p> <div align="center"> <p class="feedbackError">If you have made any changes to the record since the last time you saved, they will be lost.</p> <asp:Button ID="btnConfirmCancel" runat="server" Text="Yes" Width="75" /> <asp:Button ID="btnCancelCancel" runat="server" Text="No" Width="75" /> </div> </asp:Panel> <script type="text/javascript"> function disableSubmit() { if (document.getElementById('<%= cbAllowEdit.ClientID %>').checked) { return checkSubmit(); } else { return true; } } function checkSubmit() { var confirmButton = $find('ConfirmButtonExtenderbtnCancel'); confirmButton._displayConfirmDialog(); } </script>
Code behind:
/// <summary> /// Runs when the btnCancel button is clicked. /// </summary> protected void btnCancel_Click(object sender, EventArgs e) { Page.Response.Redirect("~/Searches/LookupCode/Default.aspx"); }
I am using a GridView Control to display multiple fileds with 0's and 1's.
I am using template fields where CheckBoxes are used.
Where exactly and how do I apply the Logic to get a checked CheckBox when field Value=1 and unchecked CheckBox when field Value=2 .Also some times to be able to write a YES where fieldValue=1 or NO where filedValue=0
i have 2 tables assignment and feedback, in a gridview it displays all the assignments, the assignments then get feedback. im then wanting to change the view feedback button in the gridview depending on if there is new feedback for example:
the feedback table has a state field in it so when its 1 i want that image button to change to the one with the +
I am developing an application in which i have to store image in database SQL server2008. I want to use upload file control and only want to upload .jpg and JPEG file and view this image in image control . And when i want to update this record i can update that image too..
I am in the process of moving all of the images in my web application over to a CDN but I want to easily be able to switch the CDN on or off without having to hard code the path to the images. My first thought was to add an HttpHandler for image extensions that depending whether a variable in the web.config (something like ) will serve the image from the server or from the CDN. But after giving this a little though I think I've essentially ruled this out as it will cause ASP.NET to handle the request for every single image, thus adding overhead, and it might actually completely mitigate the benefits of using a CDN.
An alternative approach is, since all of my pages inherit from a base page class, I could create a function in the base class that determines what path to serve the files from based off the web.config variable. I would then do something like this in the markup:
<img src='<%= GetImagePath()/image.png' />
I think this is probably what I'll have to end up doing, but it seems a little clunky to me. I also envision problems with the old .NET error of not being able to modify the control collection because of the "<%=" though the "<%#" solution will probably work.
I have a fileupload control in a contentplaceholder in a masterpage. I have to preview the image whenever I browse an image beside it in an imagecontrol.
My application is running on a different server .So I can't give the filepath of my local system.
Also I don't want to store the image in any location and i'm not supposed to use any session variable to pass it to generic handler.
I know how to display an image in gridview from image path in database. Now, I want to display an image in an asp.net image control from image path in database. Can anyone point me to a tutorial? I haven't been able to find one that explains how to do it when I don't know what the image path will be. The images are in the root folder.
i have a website which has a <IMG> and/or <asp:Image> in it.
The user has an option to upload an image. so if the user does upload an image it will be displayed in the stated controls above. but if they don't the control displays its alternative text or an "x" icon. can i just place a default image in it if there is no image reference to it to display?
I know this might sound like a simple quesiton, but I am having problems allowing me to upload images along with other information (name, image, biography, wbsite links) to a sql server database, as well as showing images from the database using a drop list control feature. I am using [URL] for hosintg. VB language.
How to display default from folder if user did not upload any image, i have imagename in database and image in folder called userimages, then i have a default image folder called missingimages. if user didnt upload profile image the code will then move over to the next code and display default image.
public string getHREF(object sURL) { DataRowView dRView = (DataRowView)sURL; string Id = dRView["Id"].ToString(); return ResolveUrl("~/Pages/Timeline.aspx?Id=" + Id);
