I am using Vb.net. I have a counter variable Dim rc as Integer This is a class level variable. loading the page for the 1st time, its value should be 0.But later I manipulate its value in various methods.My page reloads after most methods & the value of rc is re-initialized to 0. how can I avoid this. I need the page to reload but the counter should keep incrementing.
View 1 RepliesI would like to ask about how to code datetime in CONSOLE vb.net. I already got the format but my problem is after I inputted another data today to the database. In this image,my data retrieval was error. The ID (1,2,3,4,5,6)should be jan 2. Unfortunately, the output was today after Ive put new data to the database. I was confused on how to code to avoid changing the date.
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I have this code.
'//////////////////////////
If TextBox1.Text = Form2.TextBox1.Text Then
TextBox1.BackColor = Color.Green
[code].....
I have 2 web pages. In the first webpage I have a text box which takes an user input.The number of controls rendered in the second page is based on the user input in the first page.I am storing the user input from the first page as a session variable [code]Now, I wish to use this session variable in the next page for initializing a global variable and what I tried to do is Dim num_Invitees As Integer = CType (Session("NoOfControls ToGenerate"),Integer)But this gives me a NullReferenceException.Can someone please suggest me what exactly I should be doing in order to use the session variable to initialize a global variable and also why the session variable's value is null while using outside a function but works fine when used inside a function?
View 1 RepliesHow can I get Webbrowser1 to navigate to each page and wait for the one page to completely load, then move to the next page...? [code]
View 3 RepliesDoes anyone know why a Page_Load would be called twice on a page when requesting an aspx page?I am using .Net 2.0 with the new .net 1.1 compilation model installed. Whenever I request a page, the Page_Load on the aspx page appears to be called twice, so does the Page_Load on and user controls added to that page.
View 16 Repliesi am new to this. i have 4 pages. login.aspx, account.aspx, settings.aspx and fliers.aspx.
its all programmed in vb.net with sql server backend.on my firstr page, login.aspx i have this code in the .vb page -
Dim SQL As String = "SELECT * FROM table1 WHERE email='" + Me.txtUserName.Text + "' AND password='" + Me.txtPassword.Text + "' "
ExecuteNonQuery(SQL)
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i have a page called a1.aspx, with the Masterpagefile = a1_master.master. Now the master page has its own divs and images for design purposes. I want a way where when i load a1.aspx, certain chosen 's and images should be hidden (visible=false). how can i do this? how can i change the visibility of a div or an image in the master page from the content page?
View 2 RepliesI am using MDI form and nearly more than 10 child forms.. Here, When i load or unload some forms, it flickers very much.. It is not as much good.. So i need to avoid this.. How to avoid form flickering?
View 3 RepliesI have aspx gridview with checkbox on evryrow, what is required is whenever we check any of the rows, a query should be launched to change the specific agent -each row consist of agentID, Pass, Status- to Paid Status. using javascriptWhat I need to know is how to loop to get the Checked row and get the ID of the row checked so that I can get THe ID of the Agent in thos row so that I can update its status.using javascriptI found something similar on stackflow:t GridView selected row DataKey in JavascriptBut it is not my case, what is needed is at the check of a checkbox a javascript function should launch through which I could update the selected row in grid view after having the index of this row and this all to avoid refreshing the page.
View 2 RepliesIn the example below, what would you name the parameter given that it is used to initialize the property FromDate?For class constructor methods, I like to have the name of the constructor parameter variable match the name of the property which is being initialized. For example, the parameter "fromDate" is used to initialize the module level variable "_FromDate" with the statement _FromDate = fromDate. Likewise, I could have alternatively written Me.FromDate = fromDate.
Proponents of C#'s case sensitivity would probably say that using a leading lower cased letter for the param variable name, which I believe is MS convention, is an acceptable approach to distinguish it from the Property of the same name but different casing.
However, VB is not case sensitive, which I generally appreciate. In the following example, I am using a param name that matches the property name, 'fromDate," and VB refers to the local instance when there is ambiguity. However, many would probably argue that this "ambiguity" introduces the opportunity for the developer to get confused and not realize which variable is being used. For example, my intent below was to have TWO params passed in, "fromDate" and "toDate" but I accidentily ommited one and as a result, the VB.NET did not warn me of the mistake because it assumed that the statement _ToDate = ToDate was equivalent to _ToDate = Me.ToDate instead of informing me that the variable on the right side of the assignment statement was undeclared.
Public Class Period
Property FromDate As Date
Property ToDate As Date
[code]....
In my judgement, we should have a convention for prefixing all parameter variable with a prefix, but hasn't the use of prefixes been discouraged by Microsoft? For example:
Public Sub New(ByVal paramFromDate As Date, paramToDate As Date)
..or maybe it could be shortened to pFromDate, pToDate...
I have an asp.net website that is using update panels on the page that i cant get to reload from the server. I have this for the disable page cache on the master page.
'Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1))
'Response.Cache.SetValidUntilExpires(False)
'Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches)
'Response.Cache.SetCacheability(HttpCacheability.NoCache)
'Response.Cache.SetNoStore()
When I click the browser back button to go back to the page it says the page has expired. the other pages on my web site work and call the page load, the only solution i found but cant use is to wrp the whole page in an update panel, but i cant do this becuase i have a report viewer on the page that does not work with ajax.
I have a page to which i send some variables with the GET method. In my VB back-end i get those variables using Page.Request.QueryString("<name>")If i then use the IsNumeric method to make shure it is an numeric string i get True back as value.
When i then try to transform the string to an Integer using val, cìnt, Integer.Parse or cType I get an error saying that my string could not be converted to a integer.So i made an error page which gives me all the info i need to deal with the problem (view below) Exception Message: Conversion from string "" to type 'Integer' is not valid.
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IsNumeric confirms that it is a numeric string and that it should be convertable to an Integer. So why won't it work. I don't think that my code should provide any extra information because it only gets the querystrings, uses IsNumeric and then tries to convert them.
I want to show default page in fckeditor on page load but but I am not able to this.[code]...
View 1 RepliesI have a page that add Items to RadioButtonList with this code :
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
RD.Read()
RBQ1.Items.Add(RD.GetString(3))
[code]....
When I click in any button in the same page, the entire page reload and it display 8 items in the RadioButtonList, If I click for the second time I get 12 items in the RBL...How can I prevent the page to reload if I click in this button. ?
I am using <%@ MasterType virtualpath="~/__.Master" %> to embed my master page content into child page to access control belong to Master Page. I have one DropDownList in Master page. And I want to access its SelectedValue in my Child Page.
Problem is when page first time loads and as I am trying to access DropDownList's Selected Value by writing in child Page - "Master.DropDownList.SelectedValue". I am not able to get DropDownList's Value. Its display's Blank.
But When Page.IsPostBack I am able to get SelectedValue of that DropDownList.
I want to access a page variable from a user control placed on that page. All the solutions work in C# via casting to the page class. The problem is that this doesn't work in VB. The page class is not selectable from the Intellisense dialog. Manual typing results in the error type not defined. It is strange that C# can do this without a problem. What is the proper solution for this in VB? I had other cases where I needed to access a control on the main page. C# again uses a cast to the page class to access the control. This doesn't work in VB again. So how can I access the page class from a user control in generell?
View 5 RepliesIn my global.asax.vb I have a rule like so:
RouteTable.Routes.MapPageRoute("defaultRoute", "{*value}", "~/default.aspx")
So, if someone enters:[URL]...Even though that page doesn't exist, the application pulls up default.aspx
Now, if this wasn't using a wildcard it would be easy to pull this value in on default.aspx like so:
Dim prospect as String = Page.RouteData.Values("value")
But this doesn't seem to work with wildcards, e.g.:Dim prospect as String = Page.RouteData.Values("*value")
How can I get the page to pick up these variable values? e.g. one time might be janedoe, another johndoe, another goose, another 12345, etc. Whatever it is, I want it to be returned into the string prospect.
I am trying to make my site fully w3c validator compliant.
At the moment, I am getting an error because a table which is generated programatically and insterted into a label's text attribute shows as a table nested in a span tag.[code]...
i have a project to generate code for TabControl.I'm doing 1 form whit textbox-es to enter the tabcontrol properties (name, size, pozition) For the number of the tab pages in the control i'm generating dynamicly another tab control with the number of tab pages entered in the tab control tab pages field [code] this is the part of the code, i have more fields.What i'm trying to do is when i enter the tab name in theTextBox_tp_name field in the generated dynamicly tab pages, the tab_pages.Text have to change when i enter a new name in the theTextBox_tp_name.
View 12 RepliesI use indexed shape object in a large VB6 apps. Need to convert to VB.Net. How do I make, let's say 360 copies of one shape object and control each of them individualy.?
View 2 Replieswith vb.net 2008 expressmy intention is to change the value of a variable to dbnull.value if the variable = ""so that i can insert null values in to the data base
Module sonsilaxa
Public Function deFcheck(ByVal i As String)
If Not i = "" Then
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I have a vb.net application that uses 2 crystal reports to print out reports. The first report is A4 and the second is A5.
How can my code access the printer default settings and change the default paper size to A4 and A5 each time without having to do it manually.
I have this code which run at form load event:
' Fuente
Dim tamano As Integer = Val(INI_Read(Application.StartupPath + "FSTM.ini", "Options", "Font size"))
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am running VB express (2008 edition). I have a class that holds 2 arrays (1 array represents the digits of the integer side of a number the other holds the decimal digits) I have overloaded all the operators to work with these numbers as if they were one. Each operator has the following format:
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whats happening is that the sign of the b variable (and only the b variable) randomly changes. Almost allways at the statement bb=b (bb is in place so when I reach that point I know what the variable had before the calculation). I can watch it change as I step through the code (stepping over the operators) I can watch it change almost allways at the bb=b, but sometimes in other odd places (such as the d=a*yparam statement). I can change the values back to their original and step through the code(stepping into the operator this time) and it will not do it. It NEVER does it when stepping into the operator, only when I dont, and only sometimes. I have spent the last two days working on debugging this one problem, with every other variable in the function it works like it should and I am not sure what to look at next. I know it does you no good without seeing the code but didnt think pasting 8,000 lines of code would go over too well so I would be willing to send the source to anyone
have code to generate a new random number as follows (which is 100% working and generating numbers between 0-9:
Dim randomNumber As Integer
Dim randomNumber1 As New Random
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The following procedures sorts a listview column based on what the tag is, 'Numeric', 'String' or 'Date'. When you click on the column header the sort procedure kicks in. On the first click it will sort ascending and on the second click it will sort descending.
My problem is that when I click a second time it won't sort descending but re-sorts ascending again.It appears when the sortorder is passed to the ListViewColumnSorter.vb classes it changes back to ascending even though it's called as descending. I've bolded the offending variables using a Numeric search.Now here's the really iritaing thing, I have exactly the same code in another application and it works perfectly?
Private Sub lvwResults_ColumnClick(ByVal sender As Object, ByVal e As System.Windows.Forms.ColumnClickEventArgs) Handles lvwResults.ColumnClick
SortMyListView(Me.lvwResults, e.Column, , True)
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Well i just tried to turn Rows cells that contain the word Yes into green on form load when i put that code into a button it worked but on a form load i didn't work !
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim j As Integer = 0
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Synopsis: I have a report generated from the report wizard in VB that works, but I only want to load data from the same department as the current user.
Details: The application connects to MySQL using the MySQL Connector/Net. I have a users table in the database, one of the fields is "Dept_ID." The report I currently have works loads data and everything fine, but I only want to load some of the data from the table, specifically where Dept_ID matches the current user's Dept_ID, basically adding the "WHERE" clause to the select statement.
I used the report wizard to generate the report and data table, etc, just followed from step one. I've looked around and have found something about using parameters, but can't seem to figure out how to pass a variable to the parameter, or if that is even the best option. Using the wizard, I don't have any code to show for it and the report works like it should, I just need to figure out how to configure it further.
On my .aspx page i want to be able to show and hide certain panels depending on user selections (radiobuttonlists).
For example in my aspx page i have;
<form id="form1" runat="server">
<asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="True">
<asp:ListItem>1</asp:ListItem>
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