Web Forms :: Variable Width Image In User Control?
May 17, 2010
I am new to web design so bear with me. I have an .aspx page with a user control at the top that is basically a container for an image. It serves as a banner spanning the entire page. The lower part of the page is a left and right sidebar with a main middle section.
The image is simply some text at the left layered over a background that fades from blue to white, top to bottom. Image size is 90 p. high by 1000 p. wide. How can I get this image to vary width withing the control along with the rest of the page when rendered under different screen resolutions?
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Feb 9, 2010
I know there's been a lot of dicussion about removing inline styles that asp.Image control renders by default. I have applyed soultion mentionedhere. But I am facing another problem with this control. If I set Width and Haigth attributes on Image control and the result HTML is:
Source code:
<asp:Image ImageUrl="~/style/images/image_big.png" CssClass="someclass" runat="server" AlternateText="Image alt" Width="179" Height="53"/>
Result code:
<img src="style/images/image_big.png" class="someclass" alt="Image alt" style="height:53px;width:179px;" />
What I would like to have is separate Width and Height rendered outside style attribute. Like when having server HTML control. And let's say that I cannot subsitute asp.net image control with HTML server control.
Is there a way to somehow render Width and Height for asp.Image separatly?
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Aug 18, 2012
In my Web page,I have a Div section with height=302PX and width=302PX.
In another page,I had a File Upload control. When we will upload the image,then the image will be displayed in that Div section.
1.When the image is large,it should be re-size and display in that particular Div section completely.
  For Eg:The image size like 350PX*350PX and 1024PX*1024PX, it should be re-size to Div Section size has 302PX*302PX.
2.When the image is Small,it shouldn't be re-size and display in that particular Div section completely.
  For Eg:The image size like 50PX*50PX,100PX*100PX and 302PX*302PX ,it shouldn't be re-size and display in that Div section.
  For Eg:The image size like 15PX*15PX these will appear very small.But When uploading the file these images also should displayed completely with as it is  in that  Div section.But the image will displayed neatly.
3.If there are any tools for these type of conditions using ASP.Net.
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Apr 22, 2010
I have user mobile image control in object list and bind image to that image control, now i want to resize my image means i want to give height and width to that image control how can i do that I have write below code:
[Code]....
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May 25, 2010
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.
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Feb 9, 2014
I want to show image with size.when the cursor will hover to image it will show size like google image.
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Oct 18, 2013
How to upload images with some conditions
Like
size not gretr than 50 kb
with = 110px, height 140 px
etc..
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Jun 17, 2010
I have a simple user control which toggles between the visibility of a few images depending on the UserId. When the page is loaded for the first time, the userID is being assigned correctly (I'm debugging). However, there are two other buttons on the page for filtering the type of users, they are perform their functionality via Ajax (not the toolkit, but the normal javascript ajax) When one of these buttons are clicked, the user control cant get the userid, it always comes up as Zero. Oh, btw, the usercontrol is in a DataRepeater, so it occurs for each of the user.. all the time.. or thats the Idea. I have several other pages like this, (none of them have ajax) and the user control has no problems whatsoever.
My User control code:
[Code]....
And the Data Repeater is something like this:
[Code]....
Here, Immediately after the userControl <ucAB:....> line, I am printing the userid just to see if its valid (by <%# Eval("UserId") %> and the user id's are valid too. I dont understand why the User Control cant pick it up on ajax postback?
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Oct 29, 2010
I have a property on a page called
public string productName { get; set;}
I want to access this in my usercontrol code behind. What's the right way to do it? Currently I am doing
(MyPage)Page).productName
But the user control is not compiling. My pagename is MyPage.
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Oct 7, 2010
I got a variable of type System.Drawing.Image and need to convert it to a variable of type byte so I can store the image in the database. Can someone show me how to do that in VB.NET code.
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Mar 7, 2011
I am having one doubt regarding the use of static variable in Asp.net pages.I am having one page say UserDetails.aspx.In this page, I have one static variable to store some data specific to a user. So, will this ?
public partial class UserDetails
{
static int numberOfReviews=0;
[code]...
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Feb 9, 2010
is there possible to control the table (tr, th, td) width in cs code? i dont want in HTML.
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Jun 17, 2010
I am using the below example code and have a problem where I can't pass the Request.RawUrl value into an object that extends the Control object (class Test below).When I use the line:
<Test1:Test runat="server" ID="testControl" Target="<%# Request.RawUrl %>"></Test1:Test>
I find that the Target property is never called.If I use this line instead:
<Test1:Test runat="server" ID="testControl" Target="<%# Request.RawUrl %> test"></Test1:Test>
the string value "<%# Request.RawUrl %> test" is passed to the Target property.f I use this line as explained in many posts online:
<Test1:Test runat="server" ID="testControl" Target="<%= Request.RawUrl %>"></Test1:Test>
the string value "<%= Request.RawUrl %>" is passed to the Target property.I need to get the value of Request.RawUrl passed to the Target Property of my Test control object. Does anyone have any ideas where I am going wrong?Control:
namespace Testing
{
public class Test : Control
[code]...
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Oct 13, 2010
I have a user control which contains a number of child controls. I want to be able to change the layout of the control (i.e. change the markup surrounding the child controls) via a property of the user control, but I don't want to have to duplicate the child controls themselves. This precludes using, say, a MultiView with different versions of the layout in each view, since in that case I'd have to duplicate the controls. I'd also rather use markup than emit the code for the control directly (as you'd do in a server control).
To give a contrived example, say I have a label and a textbox. In one layout, I want the label and textbox to be contained by divs and laid out on top of each other. In an alternate layout, I want them to be contained side by side in a table.
Should I just go ahead and duplicate the controls between each view? It seems like a violation of the DRY principle, but I'm not sure if I have much choice. A partial solution would be making the views of a multiview into naming containers so that I could at least save myself the time of having to prefix the duplicate control IDs with something to make them unique.
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Oct 29, 2010
I have a property on a page called
public string productName { get; set; }
I want to access this in my usercontrol code behind. What's the right way to do it?Currently I am doing
((MyPage)Page).productName
But the user control is not compiling. My pagename is MyPage and I have also added a Reference
<%@ Reference VirtualPath="~/MyPage.aspx" %>
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Mar 3, 2010
I am trying to modify a .ascx file, to declare a variable. I've read that this is normally done in the code behind view, but I do not have access to the code behind, and this is a very small addition. We are using DotNetNuke, and in the .ascx file I have written
<script runat="server">
String foo = "bar";
</script>
And this causes the page to explode. I have some experience with PHP, but am very new to .NET. Is there a way to define a variable in a .ascx file in this way? Maybe I have not imported all the correct libraries at the top of the page?
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Mar 1, 2010
I want my users to upload their photos to my website. I am using fileupload for this. I have jquery to crop the image to desired size ( according to user).What I am doing is this, when a user uploads a photo, I use the uploaded image's address as ImageUrl , and the user gets its pic dynamically as soon as he uploads it.And then with the help of jquery , user can crop it to dimension of his/her choice. Finally, I get a cropped and smaller image. [:)]But the real problem is this, if a user uploads a picture of greater dimensions ( e.g. 1600x1200) , image covers up all the screen, so I want a method so that the uploaded image get restricted to a fixed height and width (say 500x5500) before it is available for cropping to the user.I have tried .......,Image's Width=500, Height = 500 ( using asp:image ) and attribute.add.style("width:500;height:500); ( using html img ) in code behind after uploading image . The image first appears in 500x500 dimension but immediately changes to its original dimension...
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Sep 9, 2010
is this possible? I only need the width and height, so loading the image into ram would be unnecessary.
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Jun 25, 2010
I have an image on this path that I first check if it exists. If it exists I wonder what the method is to get width and height of this image ?
[Code]....
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Aug 2, 2010
I have a complicated user control on a form that's laid out they way the business unit wants it. What they would like is to be able to export this content to excel and/or PDF as an image. Basically I need to be able to render the user control as a static image.
Is there any simple way to do this or is it even possible? Since the user control is HTML, it's not really rendered at all at the server level as it's just HTML, so I would assume that I might need to interface with IE library.
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Apr 7, 2014
I have this interface of multilevel grid built in VStudio 2010 using asp.net.My grid will show the 2nd level then the 3rd (2nd grid as its parent) when plus signs are clicked. however the parent gridview loses its original width when the panel shows up. Is there a way to maintain its width so the design will be as is. See the picture by clicking the link
Attached image ....
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Feb 12, 2010
I have a problem with ViewState. I have an aspx page that has a treeview on the left and an UpdatePanel with an ASP.NET Panel inside on the right. It is in that inner Panel where I load and unload dynamically user controls. I use that update panel to load dynamically controls.
I also made a custom control for my user controls because I need to pass some values from page. On that constructor I use ViewState to store these values.
The first time I load the user control I call its constructor with parameters. When I reload that user control on each postback I use its normal constructor.
My problem is I the values I've stored on ViewState has become null on successive postback.
Update:
This is a piece of my user control:
public class MyUserControl : System.Web.UI.UserControl
{
private int PKId
{
get { return ViewState["pkId"] as int; }
set { ViewState["pkId"] = value; }
}
public MyUserControl(int pkId)
{
this.PKId = pkId;
}
...
}
I'm following this article to load controls dynamically: http://msdn.microsoft.com/en-us/magazine/cc748662.aspx#id0070065.
Second Update:
I also set the same control ID when I load the user control at first time and on each reaload.
Maybe I can use another method to store these values like input hidden fields or Cache. I've choosen ViewState because I don't want to overload server with Session values for each user.
Third update:
I load the controls with this code:
System.Web.UI.UserControl baseControl = LoadControl(ucUrl) as System.Web.UI.UserControl;
if (baseControl != null)
{
baseControl.ID = "DestinationUserControl";
PanelDestination.Controls.Add(baseControl);
}
And reaload with this code:
DynamicControls.CreateDestination ud = this.LoadControl(TrackedUserControl) as DynamicControls.CreateDestination;
if (ud != null)
{
ud.ID = "DestinationUserControl";
PanelDestination.Controls.Add(ud);
}
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Mar 4, 2010
I have a custom control which inherit from the Table class and in the constructor, it takes a an integer as an argument. There is no empty constructor.
Is there a way for the user to set that variable in the properties window after they drag the control onto a form.
I know some .NET controls, you can set the source for the parameter to different things like another control's property, QueryString using just the properties window.
Right now, I have to create the control dynamically. I read the query string and then created the object.
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Sep 24, 2010
I have a file upload control on my page with a regular expression validator that handles the file format.
Users can upload files but I want the maximum WIDTH size to be 500px.
If any bigger I need to show a message advising the width is to great and stops them.
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Jan 20, 2011
how to resize image, convert type it and I want to know resolution image upload if page content images how resize all image in this page to 700 max width asp.net 3.5 vb
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