i am trying to load images from the northwind database (categories table) into grid view control. But it does not seems to work.
Default.aspx
[Code]....
[Partial] Default.aspx.cs
[Code]....
[Partial] ImageHandler.ashx
[Code]....
Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
The above error occurs with gridview control , when used with template field columns with item template / and edit templates etc.
updating a row within gridview, at the time of loadiong it loads perfectly fined, but when tried to modify an existing row within gridview control, then it produces the error. Make sure the grid view control has to be a child control which manages the child table info with in a master form. to reproduce the above problem the grid view must be loading the child records info of a master within the masterform, meaning both master data and gridview data all to be managed in one single form.
I had to replace gridview control with datagrid and then it worked perfectly fine. I wasted almost 4 days of my time., there is no way we could figure out the problem. here is the full info of the problem.
Server Error in '/' Application.
Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
Source Error:
[Code]....
Stack Trace:
[HttpException (0x80004005): Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.] System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +306 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Page.LoadAllState() +312 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1661
Version Information: Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3082
How can I make image control through C# coding in gridview column?? and then display image in it.
View 1 RepliesMy file path in which I have stored image will be like this "C:Documents and SettingssureshDesktopRegIR_NEWRegIRinDebug....Images8-Q-IMG.jpg".
This file path will be diaplayed in Gridview and I have made "Auto Generate Select Button - True" in Gridview.
Is it possible to get the image in image control by using this file path on the click of "SELECT" option in gridview.
My running this application on a remote server.
i have added a hyperlink in the gridview and i am displaying the image names in the grid as hyperlinks
when i click on the hyperlink in the grid, the related image has to be displayed in the same page but in another div which is next to gridview
but for me ,image is displaying in another page
I'm still a basic user of ASP.NET and i'm trying to figure out how can i use the FileUpload control to give an uploaded image to the Image control.
The FileUpload control doesn't have an OnClick() event so when i hit Upload i don't know what happens with the uploaded file in the back.
what i'm trying to do is choose a file with the FileUpload control, preview it in the Image control and then save it in an SQL Server 2008 database in an "image" field.
how to display image datatype from sql server (stored in binary format) in gridview or any control.
View 5 RepliesDo you think it is wise to load the background-body image dynamically in a CMS application from SQL Server 2005? Granted I would have to generate a sql statement based on size of the page to show the correct image. Anyone run into any pitfalls?
View 1 RepliesI am using .net 3.5 c#
i have this asp:Image
<asp:Image id="Imgage1" runat="server"></server>
I tried to load image from server side when page load
like this
Image1.ImageUrl = "~/mine.jpg";
But it did not work.
I'm not even sure if this is the correct approach for this -
I have a DB that stores information, as well as a location to where images are stored
ie ProductImage = ~/ProductImages/BulkRetail.JPG
I'm using a repeater to list all the products, which works fine for all the labels I use but not for the image location. I'm using something like this, but it doesn't work:
<asp:Image runat="server" ImageAlign="Left" ImageUrl='<%# Eval("ProductImage") %>' />
how to create image gallery? (load images from sql server)
i'm created that use asp:table control
how to retrieve database image to the image control?
in the database, i have a column in database that store the url for the images. and how am i going to retrieve it to the form?
[Code]....
the "dtrSelect["Food_Pic].ToString()" is the url for the image.
I have hyperlink and Image control in my page when I click on hyperlink it go to ViewDetail.aspx page below is code
<asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl = '<%#"ViewDetail.aspx?BehCode="+Request.QueryString["BehCode"]+"&Id="+Eval("Id") %>' CssClass="LBP3" Text = "Description..."></asp:HyperLink>
I want do it for Image Control too, I mean I want Like Hyperlink when users click on Image it go to ViewDetail.aspx page Like above code.
How to call different images in <asp: Image> tag for every row of gridview.I used below code as per my requirement (HTML code):
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Caption="Customer List" EmptyDataText="You have deleted all records in customer list">
<RowStyle Height="40px" />
<Columns>
<asp:TemplateField>
<ItemTemplate>
[code]....
Only difficulty im facing is how to bind different images in "ImageUrl" for every row of Gridview.Note: Images are not saved in DB.
i have a photo in client
i send the address photo from address bar to the form
but the image control can't show the photo
how can i show the photo from client
[URL]
I created a image handler...
Partial
Class
ImageTemp
Inherits System.Web.UI.Page
Protected
[Code]....
1.Should I be able to just open the Image handler and see the image...if so then I think my problem is in it because all I see is a blank screen.
2. Is image/png a legitimate image type? The file is a .png file but I have found no information that this is a image type.
3. Not sure I have the IMAGEURL coded correctly.
I have hardcoded my variables in the image handler just to test.
image control doesn't seem to load image? Path name is set in db to a picture on my desktop.
OdbcCommand cmd = new OdbcCommand("SELECT User.FirstName, User.SecondName, User.Aboutme, User.DOB, Pictures.picturepath FROM User LEFT JOIN Pictures ON User.UserID = Pictures.UserID WHERE User.UserID=1", cn);
OdbcDataReader reader = cmd.ExecuteReader();
[Code].....
I am trying to change the image url of an image button in my gridview. I cannot seem to be able to do this in the code behind. Is there a way I can do this through the image buttons controls?
View 5 RepliesI have a page which displays details and a pictures of employees. The details are stored in a SQL database and the images are on the server. How can I set a default Image to display (e.g. an Image saying "Awaiting Image") if an employee picture is missing?
I can't use NullImageUrl as the Images are not stored in the database. I can't use the solution found on [URL] as an ImageField does not accept an ID attribute.
[Code]....
i am using template field display image based on condition in table field. i have field name verify i used to store yes or no value if it is yes then display image else noting to display in gridview
View 1 RepliesI have a stylesheet attached to a master page and a web user control attached within that master page.
here is the css code
#searchBox
{
background-image: url (image.jpg);
}
in the master page, i create a div inside the made called "searchBox". Then, I have a web user control inside that div. However, my background image does NOT load. How can I resolve this?
I have a datagrid view, in that I have a templete column ,inside that I have Image control and label control.
Based on the Data from one column in database, i have to show Label and Image control,in template column.
How can i do that?
I am using ASP.net 2005 and dev language is C#.
I have the follow code (i just listed the parts that might be the more important to understand my problem):
(Code Behind)
[Code]....
(Page .ascx)
[Code]....
The user control RatingControl shows the rating and the number of rates, the user control Pager is responsible for raising CurrentPageChanged when the page changes and BindData() is a function
that binds data to the Datalist control.
When the page is loaded for the first time BindData() marked with ** is executed , thereafter i only want to load data when the event CurrenPageChanged raises.
So far so good, but the problem is when the CurrentPageChanged is raised and call the BindData() function, the user controls are not loaded properly, and things that i can't understand happen, like the user controls not receiving the properties initialized when they are loaded, but the other controls inside the Datalist like lblDescription are loaded correctly with their data.
Summarizing, the user controls are not loaded correctly in this particular case when the DataBind() is called by an event.
I already searched in the internet, and i read about page life cycle, user controls and i still didn't understand why this happens and how to fix it.
I have div In my page that in this div I put image control
<div id="DLogos">
<asp:Image ID="imglogo" runat="server" CssClass="ILogos" /> </div>
according to below code
<div id="Dart1_I1" visible='<%# !string.IsNullOrEmpty(Eval("image1").ToString())%>'>
If in database was image it show div and if there wasn't any image it didn't show div but above code is for div that I put in datalistnow I want do some thing like that for Div that I don't put it in datalist I should write code for that in behindecode page but I don't know How I can do it?behind code
SqlCommand _cmd = new SqlCommand("storeinfo1", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cmd.Parameters.AddWithValue("@behcode", data);
_cn.Open();
SqlDataReader _dr = _cmd.ExecuteReader();
while (_dr.Read())
[code]....
I have one repeater that has one image(image1) bound from data base .also i have one pop up div that has another image(image2) without any image url.i wanna when click on image1 thats url put in image2's url and my pop up div show
View 1 Replies