C# - Image Control URL Setting?
Jul 5, 2010I have an image control .NET.
<asp:Image ID="Image1" runat="server" />
How do I set the URL using code in C#, like
{
this.Image1.
}
I have an image control .NET.
<asp:Image ID="Image1" runat="server" />
How do I set the URL using code in C#, like
{
this.Image1.
}
I am trying to find a way of setting a default image(e.g. file path) for the FileUpload control so that a default image can be used if a user did NOT choose to upload an image.
View 4 Replies<div class="sp1" style="background-image:url(<%#GetImage()%>);" runat="server"> </div>
Tested my method by assigning the String(containing my image's path) returned by it to a label..its getting the path alright..then why wont it display when I run the code?when I viewed the page's source..this is what I see..
<div class="sp1" style="background-image:url(<%#GetImage()%>);"> </div>
I need to send an image (as a downloadable file) from an ASP web page. It is working correctly in every browser except for IE (all versions).
Here is the server side code:
bool export = Request.QueryString["Export"] != null;
if (export)
{
byte[] allBytes = File.ReadAllBytes(@"C:MyImage.tif");
Response.ContentType = "image/tiff";
Response.AddHeader("content-disposition", "attachment; filename="MyImage.tif"");
Response.OutputStream.Write(allBytes, 0, allBytes.Length);
Response.OutputStream.Flush();
Response.End();
return;
}
And here is the JavaScript:
$('#ExportFrame').attr('src', 'Default.aspx?Export=true'); // ExportFrame is an iframe
In IE, I keep getting an error saying "Internet Explorer cannot download Default.aspx from localhost". I thought it might be an issue with loading it in an iframe element, but redirecting to the URL is not working either. The really odd thing is that going to the URL (/Default.aspx?Export=true) does not work the first time, but works every time after that. Again, this works in every browser I've tried except IE.
Update:
The aspx page has the following code to keep the page from getting cached:
// Never cache this page
Response.CacheControl = "no-cache";
Response.AddHeader("Pragma", "no-cache");
Response.Expires = -1;
Removing the first 2 lines and leaving only Response.Expires = -1 resolved the issue.
How can I set the alt tag of an image that has been set using HyperLink.ImageUrl? I read an article that states you should be able to do HyperLink.Attributes["text"] = "My Alt Text" but that doesn't seem to work.
I want to try and avoid creating a separate image control and adding it to that hyperlink just to set an Alt tag.
i tried to set image to the button tag in asp.net but it gave an error saying background-image cannot be applied to . I wrote the following code
<asp:Button ID="bsrc" runat="server" Style="left: 545px; position: absolute; top: 18px;font-family:Tahoma; font-size:small" Text="Search" Width="101px" />
<img src="search-icon.png" alt="" style="left: 649px; width: 29px; position: absolute; top: 17px; height: 26px" />
can you set the the image size of this control with css?
<img style="border-width: 0px;" alt="Test image" src="userdata/1/uploadedimage/database%20entry.jpg">
Not sure if theres a way I can assign a certain size to this either by css or by Jquery? Or if I can do it directly in my C# code using something like img.Style?
EDIT:
Just to clarify my css is like so:
div .test
{
width:90%;
z-index:1;
padding:27.5px;
border-top: thin solid #736F6E;
[Code]....
So how would I use the below answers in this combination
How we can set image in the textbox in place of text like as watermark textbox in asp.net.
How it can be possible...
I am trying to set the width and height of images in a datalist in the codebehind.
The plan is to do something more complex than this based on the width/height, so setting width and height in the aspx file to 50% is not an option.
For some reason I always get 0 for width and height. Image1.ImageUrl is what i would expect though. Image is the System.Web.UI.Webcontrols.Image, not a System.Drawing.Image.
[Code]...
We have a chart on a page that current is hard coded with test data, client likes and we are trying to now link to live data.I have tried different things in the code behind to build the url and keep getting Null Reference Exception even though when i debug the url is there and complete. I can take the value that i get in debug and paste directly to the browser and the chart works. so i know that im building the url correctly, but setting the .Src of the image in the page_load event doesnt seem to be the correct way to populate the image..Here is the complete link that is built in the code behind that is passed to the src of the image control.http://chart.apis.google.com/chart?hs=300x265&chd=s:bD&chdl=DVDs|DVDs+with+Scracthes&chdlp=b&chl=44|5&chma=40,60,0,40&chtt=DVD+Report&cht=p3&chco=751010|FFCC33 In the page load event i have the following:
[Code]....
[Code]....
I place a break point on the line where i set the src and as i step thru everything is correct and the src is being populate with the correct link, but when i step past that line, then i get the null reference.Now why is it that i can paste that link to the browser and it works.. and if i hardcode that link in the image src on my aspx page and comment out the code behind it works there also..
I created an image button in my header template. When clicked, it calls the Sorting method. When I change the image url in code behind, it does not render. By setting a break point, I can see the property being updated, but I assume it is getting overridden by the default I set in the HTML page.
Code:
<HeaderTemplate>
<span>Claim Id</span>
<asp:ImageButton ID="btnClaimIdSort" runat="server" ImageUrl="~/Styles/UpArrow.ico" OnClick="Sorting" ToolTip="ClaimId" />
</HeaderTemplate>
Code:
protected void Sorting(object sender, EventArgs e)
{
var sortButton = (ImageButton)sender;
// parse new sort
var newField = sortButton.ToolTip;
// parse existing sort
var existingSortArgs = this.ClaimSort.Split(' ')
[code].....
I Used AsyncFileUpload(one of Ajac Control Toolkit Controls) to Uploading User's Image. this works well. But i want to change the image url of an image contorl to uploaded image url. how can i perform that? I put Image control in a Update Panel:
[Code]....
in C# code I wrote these:
[Code]....
But it does not work. Image is like Previous. Note that ImageOperations.ResizeFromStream() method resizes and saves the image to a specefic folder. actually I should trigger a Postback to Update the Update Panel but How to do that. I usedUpdatePanelNew.Update(); but it does not work!
I am trying to put a default image in an Image control in asp.net and it should show that particular image on the page when no other image is assigned or no image available in Database.
View 1 RepliesI 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.
View 35 RepliesI want to have the background of my masterpage (the master page for all of my .aspx pages) have a sort of gradient. I imagine the only way I can do that is with an image. Or maybe even some other design, but I want to move away from the "solid color" background.
Is the easiest way to do this just to make an image and set that as the background? What image size should I make it, because some users could possibly have the normal aspect ratio, or maybe a widescreen? What should I make it like so that it looks good on [b]all[/b] computers?
I am creating new custom command button control derived from asp.net command button. In my custom control I want to set two images (i.e. one from left and one from right). In center command text will come. I tried background image property using css. But I won't work out for me. The image is coming left but the actual command button style is lost and the second problem is I could not able to set image on right side.
View 7 RepliesI have a checkbox in a repeater control. How to get the User,Administrator,Security Admin as the checkbox Names ?
private string[] AvailableRoles = { "User", "Administrator", "Security Admin" };
Repeater_Roles.DataSource = AvailableRoles; Repeater_Roles.DataBind();
[code]....
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.
Setting value in html control in code behind without making server control
<input type="text" name="txt" />
<%--Pleas note I don't want put runat=server here to get the control in code behind--%>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
Code behind
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//If I want to initlize some value in input, how can I set here
}
}
protected void Button1_Click(object sender, EventArgs e)
{
Request["txt"] // Here I am getting the value of input
}
want a file upload control for uploading image in which when user select the image ,
i want to show it in image control after he finished browsing the image.
i have used filestream of sql server 2008 for storing images. i want to retrive that image and bind to image control.but not getting the correct path.
View 2 RepliesI'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") %>' />
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]....
How can I make image control through C# coding in gridview column?? and then display image in it.
View 1 RepliesI have filed image type varbinary
I want upload image and show then with click button save
store in db