Accessing Control Attributes From Static Function?
Sep 16, 2010Here's what I've got:
<textarea id="TextArea1" rows="6" cols="20" runat="server"></textarea>
and in the code-behind:
partial class _Default : System.Web.UI.Page
[code]....
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Asp.net - .NET: Accessing Static MVC Controller Method From View?
Mar 16, 2011I've got an .aspx page with this in it:
<%@ Import Namespace="System.Web.Mvc" %>
<%= AssetController.ScriptTag("/js/Community/CommunityWizard.js")%>
And I have an AssetController class:
Imports System.Web.Mvc
Public Class AssetController
Inherits Controller
[Code]...
What gives? I don't understand why I can use this controller everywhere in our ASP.NET Forms/MVC hybrid application, but not in a view.
EDIT: In fact, when I type <% System.Web. into the .aspx view, Mvc doesn't even appear in Intellisense!
Accessing New Chart Object Attributes In Excel 2007 With VBA?
Mar 11, 2009How do I access the new attributes of Excel 2007 chart objects from VBA code such as setting the line gradient on a data series?
View 1 RepliesHave A Static Generic Function In .net 2.0 VB Code?
Sep 2, 2009I must be doing something wrong here (because really, what are the chances of me tripping over another bug in the Vb.net compiler?)I have a static generic function in .net 2.0 Vb code, I thought it was time to "upgrade" it to be an extension method, but the compiler complains with Extension method 'AddIfUnqiue' has type constraints that can never be satisfied.
Here's a trivial example that displays the same problem. The old static version (which works fine) followed by the extension method
Public Class MyStaticClass
Public Shared Sub AddIfUnqiue(Of T, L As {List(Of T)})(ByVal this As L, ByVal item As T)
If this.IndexOf(item) < 0 Then
[code].....
LoadControl In Static / Shared Function
Dec 30, 2009how I can dynamically load a control inside of a shared/static function?The function itself is inside of a mustinherit/abstract class.(It's an ASP.NET project in VB) I want to do something like this:[code]I'm getting "Cannot refer to an instance member of a class from within a shared method or shared member initializer without an explicit instance of the class.",but I don't understand this error.I understand what it means, I just don't understand why calling LoadControl isn't seen by the compiler as being an explicit instance of the class. What's not explicit about using LoadControl to create a new control from a file? I tried creating a new user control and initializing it, then setting it to a different control with LoadControl to no avail.I also don't want to do a DirectCast because I'm trying to put this in a shared, mustinheret (abstract) class, which therefore doesn't have an .aspx file to write in a <%@ Reference Control="~/SomeControlPath.ascx" %>, so the class name is unavailable.What I'm trying to do is write a static function that takes some value and returns a control based only on that control's source file location.The end result is a user-modifiable list of controls.They get a column of controls that they freely add, remove, or reorder based on a static list of available child controls that I specify.
View 4 RepliesAsp.net - Calling Other Functions From A Shared (or Static) Function
Aug 20, 2010I get this error: Cannot refer to an instance member of a class from within a shared method or shared member initializer without an explicit instance of the class.
Partial Class _Default
Inherits System.Web.UI.Page
<WebMethod()> _
[Code]....
I know it has something to do with the fact that the first function is shared and the second function should probably be Public as well but I don't fully understand the reason behind it. Probably not relevant but I'm calling the web method from some javascript.
Handling Control Attributes Within A GroupBox Control?
May 16, 2012I have a form in which their is a GroupBox control. I set the Font's Bold property to TRUE. I know that by default any other control put inside a gorupbox will inherit the Font's property settings. I have textboxes and labels in which I manually reset the Font Bold property to FALSE, however, I have a DataGridView that I did the same thing with but whenever I run the app in test mode, it reverts back to the Fonts' Bold property as TRUE rather than FALSE.
View 10 RepliesFont Attributes Of RichEdit Control?
Jun 10, 2012I am using old good RichEdit control with last version of VB.NET. I want to set font attributes for text which will be typed from now and then. So, RichEdit.Font and RichEdit.SelectedFont are not an options. What should be the correct approach?
View 1 RepliesWeb Browser Control DocumentText Attributes?
May 24, 2012I am looping through a HTML email flyer, iterating the images in the HTML document, uploading these images to a server and then using the setattribute() method to rewrite the images to point to the server copy rather than the local copy.
All of this works fine! However, i'm then trying to write the new underlying HTML code to the same file (overwrite) and the documenttext property of the webbrowser control doesn't seem to contain my update attributes. This is strange as when right clicking each image on the web browser control itself, I can see that the new image location has been set correctly.
Do I need to somehow 'refresh' the documenttext property or something? How can I acccess the new HTML code of a web browser control after the point at which I have change some attributes of certain HTML tags?
Asp.net - Embed A Static Image Resource In A Web Server Control?
Feb 15, 2010I am going to create a web server control representing a treeview. So I want to use 2 images for + and - for expand/collapse. How can I build this into the control in a way that can be used as image source when rendered on the page? Since this will be in a compiled web controls library, I don't want to rely on external images in the web application.
Edit:Based on this answer by Andre Kraemer I did the following:
In AssemblyInfo.vb:
<Assembly: System.Web.UI.WebResource("MyCompany.MyWebControls.Resources.plus.gif", "image/gif")>
<Assembly: System.Web.UI.WebResource("MyCompany.MyWebControls.Resources.minus.gif", "image/gif")>
[code]....
My Assembly name is MyWebControls.My Root Namespace is MyCompany.MyWebControls.The images plus.gif and minus.gif are located in a folder named Resources, and the images have Build Action set to Embedded Resource.It still does not work. I get no errors. I have tried the generated image url directly in the browser, bot nothing happens, just a blank page.
Note:I tried to use an invalid path in the resource name, and the result was exactly the same, which made me wonder if I need to do something special to map the actual resource to the resource name. I got a 404 Not Found error only if I used different name in the code than what was specified in AssemblyInfo, it had nothing to do with path was pointing to an actual resource!
Accessing The Shared Function?
Mar 1, 2011i have a function that i have in my data access class now i want to access it then declare and assign parameters and then insert data into database?
'1
'the function
Public Shared Function InsertNewRecord(ByVal myStoredProcedure As String) As Boolean
Dim conn As New SqlConnection
[code]....
Accessing Value Returned From Function?
Feb 22, 2010I'm new to VB.NET and want to parameterise the SQL Connection Strings in my VB.NET App. I've added a function to my Main Form to retrieve the App.config File like:
Imports System.Configuration
Imports System.Configuration.ConfigurationSettings
Public Class MainMenu [code]....
In my other forms when i want to reference the Connection String, i get an error saying getConnStr is not declared?
Private Sub UpdDept_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
myconnection = New SqlConnection(getConnStr()) <=============
Dim mycommand As New SqlCommand()
why i get this when i've declared the Function as Public?
Using Array / Collection Values In Control-names / Attributes (in VB)
Mar 5, 2012I am working on my first VB application and have run into a problem. I am trying to loop through some data and displaying them in labels. I am using a for-each loop but end up with different row with the same labelname. What I would like to do, is to assign a number to the labelname (mylabel1, mylabel2,...), but I canīt figure out how, and I cant find anything online that will work. Here are some of the code that I have made, where I could use a solution to my problem...
[Code]...
VS 2010 User Control Property - Group Attributes?
Apr 2, 2010this questions has be answered partially, but I can't find any full tutorial for this problem.I created my own user control (an advanced list with columns). Each column has different attributes like width, colour and text.I want to able to add this user control onto a form and select/edit the different attributes of each column. Hence, for each column in my user control (these columns are created beforehand, no columns can be added or removed from it) there should be a property in the property-menu. Each of these column-properties should be expanded (like the normal size-property in most default vb-controls that can be expanded with the little plus to show the width and height individually.What i mean by this, is: In the property-menu there should be attributes like Column1, Column2, Column3. Each of these attributes should be expanded to show the attributes like width or colour.
Currently I have different properties for different values of the same column, like Column1Wodth, Column1Colour, etc, but I want to group this under one value Column1.I think this is quite an easy solution, but forgive me, I spent more than 4 hours on google, but couldn't find a proper solution.
Accessing A User Defined Function Or Sub?
Sep 10, 2009I'm a new user of VB.Net. I do have doubt on accessing a user defined Function or Sub. In some place of program, I do see the term "Call" when using the Function/Sub. In some other place without "Call". But both works perfectly. May I know the difference between the two.
[Code]...
Accessing Global Function / Values?
Jun 1, 2009m using a public variable called globalquery & a global function retriveToDataGrid() it works perfectly fine under same class /form ..... but when i try to access it from a different form , it gives no error and nothing happens
Public Sub retriveDataToDataGrid()
Try
Dim connStr As String = "Database=shahopticals;" & _
"Data Source=localhost;" & _
[code]....
Communications :: Accessing A Class Function?
Oct 28, 2008I am working on this project and this question seems to be stupid, but I am not really getting the point.I have the following class:
Code:
Public Class ConnectedServer
Public MYPORT As String = "8000"
[code].....
Asp.net - Programmatically Change Custom Attributes Of User Control In Code Behind?
Jan 21, 2012I have a User Control which is a customer input form.I'm working on a sales system, when generating a sale, the customer data is populated by a Javascript Auto Complete, but when loading a saved sale, I need to paste a User ID into the control programatically.
<controls:customerDataForm ID='customerForm1' partExchangeMenu="true" showBankDetails="false" customerID="****" runat='server' />
Renders my control on the page within the markup of the parent document (in this case it's called newSale.aspx)In the code behind in newSale.aspx.vb I need to be able to programmtically change the value of the Controls customerID attribute. I can't seem to do it.This is what I have done, following various Googling attempts, but it is always leaving the customerID as zero
Protected Sub Page_Init(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Init
customerForm1.customerID = "0" '// default Customer ID if no invoice number
If Request.QueryString("invno") <> "" Then
[code]....
Accessing Cursor Data Returned By PL/SQL Function?
Jul 16, 2009I am calling an Oracle function PKGDummy.F_EMPDATA using vb.net.
View 1 RepliesAccessing Public Shared Function From Another Form
Mar 1, 2011[Code]...
i have a function that i have in my data access class now i want to access it then declare and assign parameters and then insert data into database.
Accessing Function In Alother Class From The Main Form?
Feb 12, 2011I have a new solution with 5 projects inside. a data access layer, database, 2 class libraries, and the main form. These are all components that I had worked on to get to this point of combining into 1 solution. Now what I have run into is I can not the actual functions in the class libraries. I can get to the class level, but that is it. ere is a sample line of code I need to get working. Once I get this one line, the rest will be obvious: Temperature is on the main form. get for options is "Equals, GetHashCode, GetType", etc... Before this I had bult, compiled, and referenced these classes separately, and it worked fine. I know this is going to be an easy answer, I'm just not seeing it for some reason.
View 15 RepliesAsp.net - Accessing Httpcontext In Shared Function Thread Safe?
Jan 5, 2012Im having a problem understanding if accessing httpcontext inside a shared function, without passing in the httpcontext as a parameter is thread safe?
Are the 2 functions in the util class equally thread safe?
Class foo
Sub main()
Dim qs1 = util.getQS(HttpContext.Current)
[Code]....
VS 2008 - How To Write Wrapper DLL For Accessing Function Calls
Jul 27, 2011I have a camera for which the complete source code with header files(.h) and all libraries files(.lib) are given in VC++. Now if I want to access the function calls in the header files and in turn the functions in the library from VB.NET, I am required to write a wrapper DLL for accessing the function calls which I never did till now.
View 1 RepliesAccess User Control Attributes From A User Control?
Mar 27, 2009I am trying to build a tournament bracket application. In order to build the application efficiently I would like to make a user control "GameControl" that represents a game and give it attributes that represent the names of the competitors "TeamNameA" and "TeamNameB" ,an attribute "Winner" to represent which team should move on, and an attribute "NextRoundGame" that assigns another instance of the user control so that it can assign the "winner" to one of the "TeamName" attributes of the next round in the competition. If the controls were native to VB I feel like I could do it easily (I have only spent about 30 hours self teaching/tutorial following) but I can't seem to find out how to pass values to custom attributes of custom user controls through code.
View 6 RepliesGetimage Of Control Function - Call This Function For Saving The Images?
Jan 30, 2010ive two custom controls, which are used to draw and edit etc...(like paint but customized....) i want to save their images with a single click....So im using the Getimageofcontrol function to do it....its code is below:::
Public Function GetImageOfControl(ByVal c As Control) As Image
Dim rc As New Rectangle(c.PointToScreen(c.Location), c.Size)
Dim i As Image = New Bitmap(rc.Width, rc.Height)[code].....
and the code to call this function for saving the images is simply.. ...
GetImageOfControl(pboxd).Save("c:78.jpg")
GetImageOfControl2(pboxf).Save("c:lp.jpg")
but the problem is that both the images have the same content....
.net - Accessing A TextBox Control From Another Class/thread?
Apr 16, 2011im trying to access a richtextbox from another class and thread then the ui and i cant seem to get it working. I currently have the sub thats handling the the work inside of a public class and its a sharedsub, im going to be calling it from several different classes and threads but again i cant seem to get it working. the code looks like this. Public Class SharedSubs
[code]...
i would be calling sub using SharedSubs.Console("stringstring") when this is called from the ui thread it works fine but when its called from anyother thread or class its does nothing,ive confirmed it going thru this code but its not displaying anything in the textbox and its not thru an exception due to delegates either which i figured it would.
Accessing Controls On A Panel Without Using Control Arrays?
Mar 2, 2010I have an application that has a grid of rich text boxes on a panel. I would like to access and modify the text in the various rich text boxes during run time. I know this has been brought up a bazillon times over the years, but I would have done this as a series of control arrays in VB 6. Below is a simplified representation of how the textboxes would appear in a panel if control arrays were availble:
rtbA(1) rtbB(1) rtbC(1)
rtbA(2) rtbB(2) rtbC(2)
rtbA(3) rtbB(3) rtbC(3)
I find that I can access the properties of the rich text boxes via panel1.controls.item(x).text, for example, where x is the control index assigned by the panel when I dropped the controls on it.
Since I created the rich text boxes at design time and dropped them on the panel, it has arbitrarily assigned the index values, and they are not in the index order that I would desire.
How does one re-assign a control's index at design time for a controls collection on a panel? And if one has 24 text boxes on one panel, is there a way to break them into subgroups, such as rtbA(), rtbB(), rtbC() with their own index values?
User Control Accessing A Form Within The Project?
May 1, 2010I have a "windows form" user control--that is, not on a web page etc. This user control has a form within the user control project. However, code from within the user control can't 'see' the form even though it is a public class---I don't understand why this is the case.
So how can I access the controls (a couple of radio buttons) on the form from code within the user control? I tried creating public properties on the form to return the state of the radiobuttons, but this still doesn't work. I get a "Reference to a non-shared member requires an object reference." error
Should I not be able to see the form since it is a public class?
"Custom" Attributes Added To A Control?
Nov 12, 2009I need to know the answer to this. I have a standard asp control (CheckBox) and I want to bind some data to it. I also want to be able to access it via vb in an easy manner. Can someone tell me quickly if this is possible? An example of what I want to do is below:
Dim myValue = TestCheckBox.Attributes("MyAttribute")
Accessing The Property Inside Dynamic Control Gives Null Reference Exception?
Jul 13, 2010I have an app with 24 different Forms. They have some security options based on which the 5 different buttons Submit, Approve, 2nd Approve, 3rd Approve, Reject etc get enabled disabled.Now I designed a MainForm that has all the buttons and the security code for them. I have created eachform as a usercontrol and load them dynamically based on which form the user wants. My loading works perfectly fine. I load the control and Add it to the place holder in the Page load event of the main page.
Now when the user selects the Submit button I want to call the Save method inside the usercontrol of the Form as each form will have a separate Save. So when I try this code snippet I get the Null reference error. Do let me know how to resolve it.
Private UCDynamic As UserControl
Then on Page Load event I use this code
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If not Me.IsPostBack
UCDynamic = LoadControl("Controls/BkCode.ascx")
Me.PlaceHolderForm.Controls.Add(UCDynamic)
End if
Then on the ButtonClick Event for Submit I do this
Protected Sub Save_OnClick(ByVal sender As Object, ByVal e As EventArgs)
Save()
End Sub
[code]....
Thats where I get the cast Null reference error. So is it that after post back the control no longer exist on the page.
