VS 2010 - Passing Image Control To Function In A Class?
Oct 31, 2012
I wrote a function in code behind of the aspx file to get from an SQL database the imageurl and assign it to that image's URL. This works fine so I decided to move it to a class but now the imageurl does not exist because the passed image control is now refering to system.drawing.image not the web image.
Code:
Public Sub ShowCodeImages(sProdCode As String, ByRef imgCode As Control, sConnectionString As String)
Dim sSQL As String
Dim sqlDCStock As New SqlConnection
Dim sqlDAStock As SqlDataAdapter
Dim sqlDTStock As DataTable
i have a linkbutton inside the Datalist control while i am clicking i would like to pass the ID value of the corresponding Link button. How can i pass the id value for the onclick function?..
How do you reference an asp.net control on your page inside a function or a class. private void PageLoad(object sender, EventArgs e) { //An example control from my page is txtUserName ChangeText(ref txtUserName, "Hello World"); } private void ChangeText(ref HtmlGenericControl control, string text) { control.InnerText = text; } Will this actually change the text of the txtUserName control? I tried this and is working private void PageLoad(object sender, EventArgs e) { ChangeText(txtUserName, "Hello World"); } private void ChangeText(TextBox control, string text) { control.Text = text; }
Passing a query string value retrieved to an ImageUrl attribute of an image control using asp.net c#.
I have a page called DisplayImage and within the page_load event i was able to retrieve somevalues from the query stringhcode=Request.Querystring["ccode"].Tostring();
i have fileupload control and image control.on click of browse button fileupload window gets open and after selecting image it should appear on image control.even i tried with AsyncFileUpload control from AjaxControlToolkit and its uploadcomplete event. but still i m not able to do it.
I'm trying to add, for each button job (below second codes), image progress bar. At the moment if I run Button1, or button2 both Image ProgressBars are running. ButI want to, if run Button1 then only one progressbar could run.Trying also with AsyncPostBackTrigger, and changing UpdatePanel to UpdateMode="Conditional"> ?!
I have a hyper link control and I set the NavigateURL and the ImageURL property at runtime. I also need to set the class of the image tag that it generates but I cannot figure out how I can do that. The solution mentioned here [URL] does not work because the image url is hard coded.
i have update and insert functionality, i want to use a function to resolve the data grid entered values into variables used for the sql update or insert, but can't figure out to pass the grid values to the function?
sub that gets the grid info; Sub orientData_update(ByVal sender As Object, ByVal e As DataGridCommandEventArgs)
this is what i do now in the sub and what i want to do in the function; orientationDate As Date = _ CType(e.Item.Cells(0).FindControl("orientationDate"), Label).Text
when i code up the function call such as retVariables = someFunction(e), vs complains e is not declared, ok, but how come it knows what e is when coding e.Item.Cells(0)....... as shown above? I have to do something first to e to be able to pass it to the function being called?
I have a function called populateList(). I want it to take a reference to a Checkboxlist or a Dropdownlist, query the DB and fill the referenced list with values.Is it possible to generalize the function to take a Checkboxlist or a Dropdownlist depending on what you pass?Or, do I have to write two different functions, one for the Checkboxlist and one for the Dropdownlist?I guess the my question is if theres a common object that covers both, like populateList(ref GeneralList list)
Thats the gyst of the onload code that deals with my session parameters, as you can see if the session parameter is passed "all servers" it sets the lable value to string.empty (have also tried seting it to "")
I asked a sort of similar question to this before so I'm sorry if this is a bit repetitive.Here is my question, I have a master page that has a label on page load I pass this control to a global class that I have, inside the class is something like:global class:
private static label myLabel; public label updateLabel {
I want to display an image, be-able to drag small images on to the large image and then save the new image. Image having a photo as an image and wanting to put number blobs on and each number blob refers to a piece of text almost like labelling photo. I know how to drag and drop images using jquery but not sure how I would save the thing as a new image.
When I move some web-based code from VS2008 to VS2010, I find it is different when it is hard to handle the Image class.
Let's take the following code as an example.
[Code]....
As I have already imported the System.Drawing namespace, I still cannot use Image.FromFile method as VS2010 detectss the Image class is in System.Web.UI.WebControls namespace.I have lots of such a kind of code in my project using Image class and I will get messed if need to modify the code from
I tried to pass a string value into a JavaScript function like below: <%= "'" + prop.property_description + "'") %>) But it does not seems to be the best option, is there a better way to do the above without concatenate the string values with "'"?
I'm trying to create a JSON object on client-side and pass to a server-side function. Then instantiate it on server-side using JSON string representation.
I have two websites both of which will share the same users in a SQL DB for membership. The first site is the standard site while the other is a subdomain for admins.
If the admin logs onto the either site, I don't want that person to have to re log on to either site if he/she is sent there via navigation. To the user it would just seem like one site. Because user would be using same session, if they log off either site they would have to reauthenticate.
The MyWebMethod returns an integer, and I want to set $(this).attr("id") of the jQuery object above to the returned integer. Basically, I'm trying to do the equivalent of an MVC Ajax.ActionLink...AjaxOptions {UpdateTargetID =...} However, I can't figure out how to get both a reference to $(this) as well as the returned value. For example, if I do:
I can succesfully manipulate the jQuery object, but obviously it doesn't have the return value from the MyWebMethod. Alternatively, the first code block with a method signature of onSuccessFunction(returnValue) has the correct return value from MyWebMethod, but no concept of the jQuery object I'm looking for. Am I going about this all wrong?
How would I pass an Object or Array to a function using the ICallBackEventHandler (RaisCallbackEvent)? It allows for a string argument only, if you change it to another datatype it error out. Sample Below...
I have an ObjectDataSource3 that I am trying to use to insert data from:
From: Dropdownlist1.selected value To: (CustomerID) From: Dropdownlist2.selected value To: (ProductCode) From: txtTitle (Title) To: (Title) CurrentDate To: DateOpened The btnAdd event is suppose to calls: ObjectDataSource3.Insert()
Below is my code for both the page and class. Although my class is expecting parameters, I don't know how to get the parameters to the insert function in my class.
I have a web service called service1. Is it possible to pass the parameter related to the service to a class library so for e.g.
Service1.service ws = new Service1.service(); Service1.UserDetails ud = null;
now if I call a method that exists in a class and pass ud. Cam i do that because I am trying to do this and I am getting an error. Do i need to add a web
reference to this service in the class library My method call is like this
authenticateUser.Authenticate(ud, UserName);
and in the class libary I have
public void Authenticate( Service1.UserDetails ud , string UserName) { }
