Datagride - Displaying Recordes According To SQL Statement
Dec 23, 2009I have a datagride that Connected to SQL Server Database and i was displaying some recordes according to my SQL Statement, and here is my Code
[Code]...
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Get Datagride Item To Picture Box?
May 5, 2009I have data gride whose [code]...
this work fine i can get my data on datagridei have some text box and a pictureboxnow i want gt the on picture box(Dataggide view item) no matter i can get the text box
Populate Excel From Datagride View?
Jul 30, 2011I populat an excel file from a spread sheet, but I get an error everytime I open the Excel File. I was wondering if someone could point out my mistake in the code.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'FILL LOCATION AND NAME
[Code].....
Avoid Duplicate Values In Datagride View?
Nov 7, 2010How can I avoid Duplicate values in Datagrideview. When I am putting Product Id in Invoice which is adding in datagrideview if it is exist in datagrideview it will Highlight with deferent color and give me massage that this Id is existent in datagrideview
View 4 RepliesDatset Update From Datagride Show Error
May 10, 2009i need to update the data on the datagridview but when i click buttonit shows message "Product not found"i have table call purchase code.[code]
View 1 RepliesChange Font In Datagride View Combobox Popup List?
Aug 12, 2011change font in datagride view combobox popup list?
View 2 RepliesSQL Statement Doesn't Work - INSERT Statement Works Fine In The Form Load But Not In The Button Click Event?
Oct 14, 2009See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
If <expression> Then <statement [:statement]> Else [statements] In Concrete Form?
Jan 1, 2010I was convinced that If <expression> Then <statement [:statement]> Else [statements] in concrete form of If a = b Then SayHello() Else SayBye() End has sense. I read article on msdn on If-then-else, but I forgot why I was reading, so I concluded, that snippet above means this
If a = b Then HelloIsSaid : IsNotEnded Else ByeIsSaid : IsEnded But I have tested it now, and I see, that Else without statement is nothing more than decoration. It would be pretty good if it had function I described. Do you think its good request? Or do you know any circumstance where this Else has some function?
Making A Next Statement Into A Loop Statement In Visual Basic?
Jun 8, 2009y friend and I are re-learning Visual Basic, and we are stumped on this bit of code.
For intAsterisks As Integer = 0 To intLine - 1
lblAsterisks.Text = lblAsterisks.Text + "*"
Next
Sql - Perform An Inline Select Statement In A LINQ Statement?
Jun 24, 2011I have the following SQL:
[Code]...
I want to put it (the select count statement) in this LINQ statement so I can get the sales count in my linq statement: Dim TheLeads = (From L In DB.Leads Where L.IsDeleted = False Select L).ToList() Is this possible to do in LINQ?
Change The Exit Statement To A Continue Statement?
Feb 23, 2009add an if statement and an exit statement to my do loop that exits when my future value (FV) is greater than 1000, then to change the exit statement to a continue statement so my loop will continue even though my fv is greater then 1000, point is to get this to run even though my if statement doesnt do anything. problem something wrong in my code and an exception error (xception of type 'System.OverflowException' occurred in mscorlib.dll)
so can someone show me where or why I have an error is, what am I overthinking now! I could use a hint, OMG i could use a tutor for that matter
[Code]...
ElseIf Statement Into A Select Case Statement?
Jun 23, 2010A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
SQL Statement :: Nearly Working Just Cant Get Form Values In Statement?
Aug 4, 2010I cant get this SQL statement to insert any of the values in the form to add to the database
sql
sql = "INSERT INTO prevresults (ExamDate, ExamTime, CorrectAnswers, PassPercentage) VALUES (date.now, time.now, rightanswers, percentage.text)"
[code]....
Return Statement Which Is True In An If Statement?
May 24, 2012Return statement which is true in an if statement
View 3 RepliesBreak Up The Code In A Method Body Into Statement By Statement Symbols/"tokens"?
Apr 22, 2011I'm writing something that will examine a function and rewrite that function in another language so basically if inside my function F1, i have this line of code var x=a.b(1) how do i break up the function body into symbols or "tokens"?I've searched around and thought that stuff in System.Reflection.MethodInfo.GetMethodBody would do the trick however that class doesn't seem to be able to have the capabilities to do what i want..dit 2:basically what I'm trying to do is to write a program in c#/vb and when i hit F5 a serializer function will (use reflection and) take the entire program (all the classes in that program) and serialize it into a single javascript file. of course javascript doesn't have the .net library so basically the C#/VB program will limit its use of classes to the .js library (which is a library written in c#/vb emulating the framework of javascript objects)
View 4 RepliesExceptions - Can The "Throw" Statement Exist In A Block With No Try/catch Statement
Oct 5, 2009how to use them then before, but am still a little confused with a few aspects. Here goes:
1.) Lets say you have a method that checks for a certain condition(s) and if it fails Throws an exception. Does it have to be in a try/catch block? Meaning can the "Throw" statement exist in a block with no try/catch statement?
2.) Now lets say we have a method that has a try catch block and in it there is a throw statement. When the throw statement is executed does it first try to find an appropriate catch block in the same method or does it immediately go back to the calling method without looking at the catch statements in the current method where the exception was thrown?
3.) I created a custom exception class that inherits from ApplicationException. Next I created a method which has a catch block that catches this type of exception and does some action. Is the System(i.e CLR) smart enough to throw an exception of this type, or does it only throw exceptions from SystemException?
4.) I know that some people are more liberal in their use of exceptions and others use it more sparingly when truly strange stuff happen like the DB going down. I am writing code where I am getting some info back from the database, converting it and then storing it. Sometimes there might be data that comes back from the database and other times the field is empty and the Null value comes back. Therefore in the instances where Null comes back from the database I should not convert the value to anything, since I will get an error. What should I do in this situation? Should I let the CLR throw the exception when it goes to convert the Null value or should I check for the Null value and if it exists not convert?
5.) In general when I throw exceptions, is it sensible to only throw exceptions of the type Application Exception or are there instances where the programmer throws exceptions of the type SystemException?
Make A 'like' Statement Or Use Some Kind Of Wildcard To Make The Statement Not Case Sensitive?
Jul 11, 2010I'm building a listview search feature in my app. (See the code below). It works really well, except if you search "T" then the code removes all items, if you search "t" then it removes every item except for those starting with "t". Is there any way to make a 'like' statement, or use some kind of wildcard to make the statement not case sensitive?
For Each itm As ListViewItem In ListView2.Items
If itm.Text Like TextBox1.Text & "*" Or itm.SubItems.Item(1).Text Like TextBox1.Text & "*" Then
Else
[code].....
"End Of Statement Expected" Error In VB 2010 In A Do While Statement?
May 2, 2012I have a line of code that is working in one statement but not the second statement. I'm not sure what I'm doing wrong, I am learning slowly but surely, and it is by no small margin because of the ave found here =) The error is occuring in the intResult = intSelection x intCount line of the SECOND Do While Loop.
The blue squiggle line is under "intCount" just FYI
Dim intSelection As Integer
Dim intCount As Integer = 0
[code]....
Components - "if" Statement Shows An Error " Statement Cannot Appear Outside Of A Method Body"
Jan 29, 2009I have the following vb code which works as expected when it's in a code-behind page. I tried to move it to a shared or component page since I will need to use it in multiple pages:
Imports Microsoft.VisualBasic
Public
Class DetTime
'Determine eastern time
[CODE]...
However the "if" statement shows an error " statement cannot appear outside of a method body" and the Microsoft solution is to "move statement into a procedure or subroutine"
Case Statement Inside A Case Statement
Oct 31, 2011I have coded a case statement that changes the background colour of a panel. [code]When the code is run, it works for the case of colour1 that is NOT 1 or 2. However, when the colour1 is 1 or 2, it is supposed to pick a number from set array and run another case statement. Instead, it only picks the last value (for 1, this is 5, and for 2, this is 7).
View 3 Replies"Using" Statement - "statement Cannot Appear Outside Of A Method Body"
Mar 17, 2010Where should i put the Using statement in Visual Basic 2008 Express Edition? as i put in under general declaration, it said "statement cannot appear outside of a method body"
View 1 RepliesDisplaying An AVI In .NET?
Oct 8, 2010I have a VB 2008 program that was converted from VB6. I used an AxMSComCtl2.AxAnimation COM control to show a simple AVI file (no sound) in VB6. Is there a .NET Framework control that I can replace this old control with? I have found the MediaElement that looks like it can only be used in a WPF Application. There is also the Media Player Component which seems to also be a COM component. So, I don't see the advantage of switching to that.
View 2 Replies.net - ASP.NET: Image Not Displaying?
Sep 16, 2011Protected Sub Upload_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Upload.Click
If Me.FileUpload1.HasFile Then
Dim intWidth, intHeight As Integer
Dim UlFileName, NewFileName As String
[code].....
After an image is uploaded it is not displaying on the web page like it should be:
'*** View Images ***'
Me.imgPicture.Visible = True
Me.imgPicture.ImageUrl = NewFileName
ABCPDF.Net 8.0 Not Displaying The PDF?
May 24, 2011I am getting a blank PDF page when I print to the page. Here is the part of my code
Dim theURL, theID
Dim i
Dim strSubject, strBody
[code]....
Asp.net - MsgBox Is Not Displaying The Right Value?
May 27, 2010I have a DropDownList, and when SelectedIndex is changed any event is triggered.
I'm putting on it for exemple msgbox, but it's not working.
What's the problem ? EDIT;
now that's working after doing AutoPostBack = True.I did this, but i't giving me always '0' as result
Protected Sub VD_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)MsgBox D.SelectedIndex End Sub
Datagridcombobox Value Not Displaying
Feb 1, 2012I have a DataGridView (called DataGridViewSecurity) in VB.net (Visual Studio 2010) which is bound to a DataTable (called DataTableSecurity) in a DataSet (called DataSetSecurity). I have added a nonbound column (called nSecurityComboBox) that I set based on an integer field (called nSecLevel) in the DataTable. After setting the combobox, it doesn't display anything in the combobox, but when you select the combobox, the 5 values in it's items collection show. Here's the code I'm using to add a record to the DataTable and then to set the combobox:
[Code]....
Displaying A Message Box In .NET?
Feb 1, 2010I am trying to display a message box in VB.NET. This should be simple but I cannot get it to work. I have coded in VB before and used MsgBox("Message") but in VB.NET i understand its MessageBox.Show("Message") but i cannot get it to work. Its saying MessageBox is not declared but what do you declare a message box as?
View 1 RepliesDisplaying A Pop Up Form?
Dec 12, 2011how to display a form like a menuStrip?
View 1 RepliesDisplaying A Value As An Image In Vb?
Jan 3, 2012In my aspx page I have a gridview which displays the value from my database as "*". So if a value in my database table is 5, it will be displayed as "*****" in the gridview.
code in aspx:
<asp:TemplateField HeaderText="Rating" SortExpression="Rating">
<ItemTemplate><h1><%# getrating(Eval("Rating"))%></h1></ItemTemplate>
</asp:TemplateField>
code in aspx.vb
[Code]...
What I want to do is change that "*" to a picture, ie star.jpg, so in the gridview it will display the image star.jpg instead of "*".Using MS visual studio 2010
Displaying An Image?
Apr 9, 2010I am using vb.net running a backend MS.Access database and I am wondering what is the code that I can use to display a picture of an image when the field name is selected.My MS Access "field" name is Cars_Types: in the files I have the data "GM, Chrysler, Toyota, Honda, and Ford". The name of my database is ModelCars.accdbThe pictures are not coded into the database instead I would like them to be coded into the VB.NET program.
View 1 Replies