I am dynamically creating buttons on a page, and want to be able to remove only certain block of them. I have no clue how to do this.. Right now I am clearing the WHOLE form and then redrawing everything.
Here is my code I am using to create.
Dim Buttons(99) As Button
Dim cmd As New SqlCommand(strSQL, oSQLConn)
dr = cmd.ExecuteReader()
[Code].....
I'm having problems removing dynamic controls.
Here is what I'm using:
CODE:
The first sub is for adding the (custom)control, the second sub is for removing the control.
The custom control is a picturebox with a checkbox in the upper-left hand corner, no big deal.
The problem is that when I click the delete command, it only deletes one ckPicture at a time, and allways the last one in the list. I'm also assuming it's doing the same thing in the list(of images). What should I do differently so that it will remove all controls that are checked?
I forgot to add the variables in my namespace.
CODE:
I need to remove all the buttons in my toolstrip so they can then be repopulated. But I have no idea how to remove them. I tried using a For statement:
For Each ToolStripButton In Mainwindow.FavouritesBar.Items()
Mainwindow.FavouritesBar.Items().RemoveAt(Mainwindow.FavouritesBar.Items().Count - 1)
Next MainWindow is the name of the form that FavouritesBar (The ToolStrip) belongs to.
I am calling this from another form, but I keep getting a "Collection was modified; enumeration operation may not execute." exception.
I have 7 Windows forms.The order of the forms is defined within a configuration file.I want to place buttons on each form that will show the next available options.The Next button will move the next form in the list.The Back button will move to the previous form in the list. The Finish button will execute the final piece of code.The Cancel button will exit the application.If the user is on the first form, then there is no Back button.If the user is on the last form, then there is no Next button, but there is a Finish button.
Example 1:
Form1 - Next, Cancel
Form3 - Next, Back, Cancel[code]....
I have a lot of buttons on a form (144) that need to be removed. All their names begin with "R". So I used this piece of code.
Sub RemoveBookingButtons()
Dim cntrl As Control
[CODE]........................
However whenever I run this sub function, it deletes every other button starting with "R". better code or point out if the flaw is in that piece of code or it is hidden somewhere else in my program?
Firstly though, I'll have to mention that I'm a relative newcomer to vb.net and don't really know that much about advanced functions.I have my main form which dynamically generates 15 buttons.
Each of these buttons will need to open another form, depending on which form has been assigned to that button in a config file (the config file isn't yet done, as I want to get it working simply by hardcoding the name of the forms for the time being)
The way I have it in my head is that I would assign the form name that needs to be open to the name of the button, if that makes sense....However, I have absolutely no clue how to do it, I've tried a couple of things but to no avail.
Here's my code, and I have no problem changing any part of it if it will help things along, this is just the only way I know how to create dynamic buttons.[CODE...]
I'm using VB 2008, and I have created a Ribbon (Visual Designer) Add-In for excel 2007.When the user clicks a "Save" button, that was created at design time, this buttons click event prompts the user for the new file name...then saves the workbook.then uses the new file name as the label for a dynamically created button that is placed in Menu1, on Ribbon1...all of this works just fine.The problem is, this dynamically created button in Menu1 disappears when excel is restarted. So, I setup user scope settings in an attempt to save these dynamically created buttons.The settings properties are as follows:
Name = RibbonSettings
Type = Microsoft.Office.Tools.Ribbon.RibbonMenu
Scope = User[code]....
The problem is, this seems to lock Menu1 and the dynamically created button never gets added to Menu1. Without this, the button is added to Menu1 just fine, but disappears upon restart.How can I save these dynamically created buttons in Menu1 on Ribbon1?
I have a form which gets populated by 15 buttons dynamically at runtime (these need to be dynamic as there will be a user config file at some point)What I need these buttons to do is to open a specific form when clicked. Which form that opens will be dealt with in the config file.
Public Class frm_MainScreen
Private Sub frm_MainScreen_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim count As Integer
Dim ImageDir As String
[code].....
how can i select these buttons in the program ?I can change the propertiies inside the click event because i know wicht button i pressed thru the sender of the event but i don't find a way to adress the other buttons outside the event.
please note that i am a beginner in programming in vb.net
For i 0To 1
For y = 5
[code]....
i'm trying to removing javascript block from a string the contain website page.so if the page is something like that:
<html>
<head>
<script>
alert("hello")
[code]....
i want to remove the bolded part othe page.
I am not certain how to do this, but it seems like it should be easy to accomplish.I have four radio buttons that I want to assign answers to, one of which will have the correct answer along with three other answers that have incorrect answers.The answer button I want to set up as a randomly assigned button, with the other three assigned after the fact.'This code works fine to assign it to Radio button #1.rbGenericName1.Text = m_dtDrugs.Rows(DrugNum) ("GenericName").ToString()I want it to be a randomly assigned button, where the location that the "1" is residing, is a randomly assigned value between 1 & 4. Here is what I have so far, but it has a Syntax Error.
rbGenericName & RndNum & .Text = m_dtDrugs.Rows(DrugNum) ("GenericName").ToString()I know that the above code is not correct, I am just trying to represent what I am trying to accomplish. I already have a random number generator in place, I am just looking for the correct syntax.
I'm currently working on a program where I'm trying to dynamically create a picture box, a button, and a label for each item in a text file. Any ideas on how to do this? What I have: a plain text file with a list of numbers. Each number corresponds to a location. When that file is read, I want to create a picture box, a button, and a label related to each number. If I want to add something to the screen, all I Have to do is add a number to the file. So, lets say the file has. 1, 2
When the file loads, it will create a unique item on the display for each location. say pic1, button1, and label1 and pic2, button2, and label2. Right now, if I add something to the file, I have to go back into the editor and manually add everything. Which is a pain.
I am fairly new to VisualBasic .NET (2008). I'm creating an application that, when a number is entered into the textbox, a new form window is created and populated with buttons. Each button starts the same command, but with a different parameter (the parameter being the pertinent record number found by the search).'The records are asset tag numbers.The procedure works fine if there is only one result.But the search allows for partial numbers and that's where the trouble begins.If two or more results are found, each button is configured with the last number found. The button being clicked doesn't tally with the proper ID number.[code]
What I didn't count on was that the event is only called when a button is clicked. When buttons are made, they are not assigned at that time.I've had problems trying to carry over the (current value) for pcArray(i), hence having it populate that form3_text field. When trying to add in a second object to be passed, I get the following error:"Method prtivate sub DynamicClick(sender as object, pcNameInfo as object, e as system.eventargs) does not have a signature compatible with delegate sub event handler with delegate 'delegate sub eventhandler(sender as object e as system.eventargs)."I tried manually entering a "Delegate sub eventhander" with the pcNameInfo object and VB 2008 ignores it.What can I do to get each newly made button to be told to run the RemoteIn(pcArray(i)) process properly?
im asking how can i inject html code to webbrowser1 without removing the current viewed page ?
for example if i viewed www.bing.com on the webbrowser1
how can i change only background color using the code
<body bgcolor="#000000">
without chaning any other element or navigating away from the page
I have the following client side code in .aspx page within a datalist itemtemplate that takes questions from the database like this:
<Itemtemplate>
<b> <%=GetQuestionNum()%>)
<%#Server.HtmlEncode(Eval("Text").ToString())%></b>
[code]....
but I'm finding it impossible to work with the html controls, i.e get their .text value from codebehind, or adding events! better way to replace the html with suitable asp.net web controls or from the codebehind and output it.
I have to create buttons at rum time based on database records and implement their events.
View 5 RepliesI currently use SiteMapPath to generate a breadcrumb for my ASP.net 3.5 (vb.net) pages and it works great.
Now I am trying to figure out how I might be able to use the same control to build a dynamic page title (in the tag). I want a reverse path listed, but the SiteMapPath control includes links and bunch of styling spans. Is there any way to remove all of that, and just get a plain path with separators?
For example, Let's say we are on the "Press Releases" page inside of the "About" section of my site.
The breadcrumb shows up as:
Home > About > Press Releases
I want to have the page title be:
Press Releases - About - Company Name
So I need it to reverse the order, drop all spans, links and styling (since this is inside the tag) and drop the root node "Home" and then add the company name to the end. Since my menu nav and breadrumbs are all driven from the sitemap file, I thought it would make sense to try to make the title do the same.
i have to convert html page(report which is dynamic in nature i.e. different for different user to pdf at runtime how can i do that.
View 6 RepliesEssentially what I want to do is have a few pages that act as templates for data. If a url is url... I want to query a friendly url field for "/home" which would return url...
View 1 RepliesI have a nested content page within a master page, upon load the the page retrieves from a SQL a list of controls to create (Field Type, FieldName) i.e. String, Username.The function loops around the list creating the controls on the webform in a Placeholder, this part works perfectly. The problem that I am experiencing is the request to obtain the value entered by the user in the dynamically created control, I need to perform this call following postback/callback.
If I take the Content page and make it a standard aspx page with no master page the application works fine. Unfortunatley taking the page out of the master page is not an option (unfortunatley a restriction by my client)
I know how to grab all the links of a page, and I tried using that same principle to grab the buttons, but I'm not exactly sure how to click one based on a certain parameter.
Here's what I'm trying to do. When the page completes (this code is obviously under Document_Completed), the program should grab all of the buttons on a page and go through each of them, and if any of them have a value of "value1", the program should click that button. This should be done with a for loop.. but like I said, I'm not sure how to accomplish this.
How can I check the 'Checked' property of a dynamically-created checkbox during the Page_Load subroutine? Basically, I have a VB.NET page that creates some table rows dynamically, based on a number selected by the user. So, for example, if the user selects "3" from a dropdown list, the page posts back and creates three table rows. Each row contains a couple of textboxes, a dropdown list, and a checkbox (which are all .NET form controls rather than plain HTML controls, I should point out).Typically, the user would enter a few details into the form controls, and click the 'Submit' button, after which the page iterates through each row, and inserts the data into a SQL Server table.But if the user ticks the checkbox for that row, this signifies that the page is to ignore that row, and NOT insert that row of data into the database when the user clicks 'Submit'. This works well, but there is a problem. If the user clicks 'Submit' and some of the values entered into the form controls are invalid (so, for example, the user didn't enter their name) then the page won't submit the data, and instead, shows an error to the user informing them of the values they need to change. But if the user creates three rows, for example, but decides to "ignore" the third row (by ticking the checkbox) then when the page posts back, finds some invalid entries, and re-shows the form to the user to allow them to correct any errors, I'd rather the page didn't render the third row altogether. After all, they chose to create three rows originally, but then decided that they only needed two. So it makes sense that the third row is not recreated.
But what seemed to happen was that objCheckbox.Checked was always returning False, even when the checkbox was ticked. Once the page had loaded, the table rows had rendered again, and the tick was present in the checkbox, so it's not like the value was lost on postback. But at the point I check whether the checkbox is ticked, it always returns False, rendering a table row that the user doesn't need.Does anyone know how to get round this problem? I've read lots of articles about the .NET ViewState, and the page lifecycle, but I've yet to find a solution that works. I simply need to be able to check if a checkbox is ticked before re-creating some dynamic controls. [code] But then I basically found out that you can't override a protected member with a public one.
I have a bit of a tricky scenario. It consists of some partial problems for which I have individually found solutions, but I couldn't find anything that makes it all work together smoothly.
-Upon selecting an item in a datagrid, a new page loads with the details regarding that entity.
-The entity represents a product that can have any amount of variants (such as a t-shirt's color or size)
-I dynamically add dropdownlists to this detail-page that represent these variants (there can be any amount of variants, and each variant can have any amount of different values, each value or combination or values from different variants representing a unique product entity)
-Upon selecting a different variant in a dropdown, a delegate is called that will change the session variable to the productId associated with the selected variant and a postback is fired that will reload the page with new data based on this productId
The problem: the postback is fired BEFORE the dropdownlist's (OnSelectedIndexChanged) delegate is called. Since this delegate defines the productId in the session, the new to-be-used productId isn't known at the time of postback.
Result: loading the correct data in the page is always delayed by one postback. Each time I change the selected index of any of the dropdowns, the page is loaded with data based on the session variable that the PREVIOUS OnSelectedIndexChanged delegate of the dropdown set.
I have a LoadData() method that sets the values of all textboxes, fields, labels etc. based on the productId stored in the current session. This method is called on Page_Load.
Private Property CurrentProduct As Product
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
LoadData()
[Code] .....
It seems that I haven't been completely clear on what does and doesn't apply to this scenario regarding Page Lifecycle.
1) My dropdownlists are added dynamically, which works fine on the first page_load.
2) The content of the dropdownlists is defined by what entity's details i'm loading on the page.
3) What entity's details I'm loading on the page is at first(not-postback) defined by the product I selected in a gridview in the previous page.
4) At postback, this entity is based on a sessionvariable containing the id of the entity.
5) This session variable is defined by what item in the dropdownlist I select.
6) This dropdownlist dissapears after postback since it's not defined on the page, but dynamically. So is the event.
So my guess would go towards some clientside script that stored the selected value before postback, but then I would be clueless on how to get that variable to the server since the logic that retrieves the entity is in the business logic layer which is far away from this page..
I have a static HTML page, where im looking for a button that has a title of "Search" but i dont see an option to get the title of the current element during my loop
Dim theDivElementCollection2 As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("button")
For Each curElement2 As HtmlElement In theDivElementCollection2
[Code].....
Removing projects from VB2008 start page recent projects list. The above list is getting clogged. How do I remove items from this list?
View 3 RepliesI have but a vb project and i have but 5 buttons on the main page i am trying to have so when you click on the button it will install an exe map program.
View 4 RepliesI have a piece of software with two tabs, inside each tab there are buttons (the user can add the buttons when they want). when tab1 is full tab2 should start to fill. I currently know how many buttons fit on the screen so I just say something like if buttons > 150 then start to populate tab 2 The problem i have now though is if the resolution is changed then a different amount of buttons can be displayed. so if I put my screen to 1280x720 some buttons are left of. I was thinking of detecting the resolution and then using different cases for different resolutions but this seems very inefficient im wondering if there is a different way?
View 5 RepliesI have a text input in textbox1 in tab page 1 and i want that text from textbox1 will be displayed in textbox2 in tab page 2.
View 3 RepliesI wrote a page Page method in my aspx page. in web service method I need to call FindControl method return textbox and get text box value. But my findControl will take MasterPage object to iterate.
see my code
<script type = "text/javascript">
function ShowCurrentDateTime() {
$.ajax({
[Code]....
How to pass Master Page object or Page to Page method?. So I can use in Sared method.
Is there any way I can access Textbox value directly in Page method? I need access couple of controls in Page Method.
HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.? means i have masterpage and the content page of master page namely default.aspx in vb.net.i wanna run javascript function in Default.aspx and i have called the function body onload in master page.when i run my website it shows the error "" Microsoft JScript Runtime Error : Object Expected ""
View 4 Replies