I've written the following code to draw a trajectory of points in my program:
Private intNumOfPoints As Integer = 0
Private PtTrajectory(intNumOfPoints) As Point[code]....
*Pos.X and Pos.Y are calculated in the other parts of my program. But, it has a run-time error: "Parameter is not valid".
Dim data As Byte() = DirectCast(sdr.Item("Image"), Byte())
Dim ms As New System.IO.MemoryStream(CType(sdr.Item("Image"), Byte()))
PictureBox2.Image = Image.FromStream(ms)
After reading many forums and trying the different examples, when I try and load my image from the database I get the "Parameter is not Valid" error.Im using VB 2010, SQL Server 2008 R2, and the data type is Image. I do not have access to the source code that is used to save the picture to the database, just access to tthe data in the db.The code I have included is the code I use to retrieve images from my db which stores the pictures as Image.
STEP1--image data is sending by a vehicle tracking unit.using a socket application i am tracing that data.the data from the vehicle tracking unit is not in a decimal format.image data coming from socket containing lot of special type of characters. so i am converting this image information to hex format using the code below.
Private Function Data_Asc_Hex(ByRef Data As String) As String On Error Resume Next 'first take each charcter using substring. 'then convert character into ascii. 'then convert ascii value into Hex Format Dim sValue As String Dim sHex As String = ""
[code]....
I have made a program that lets you select an area of a picture and then crop it, I am having problems while drawing the rectangle that shows which area will be cropped, following is my code.
[CODE].............
This is declaration of all the variables that I am using.
[CODE].............
Over here I send the graphics handle of the "canvas" control (which is just a picturebox) to a higher level, so I can use it later.
[CODE].............
Over here I get the starting position for my rectangle
[CODE].............
This part is supposed to draw the rectangle, as I am moving the mouse over the Canvas control, but I get an error where the rectangle is being drawn, I originally thought that the problem might have been with the fact that as soon as I begin moving the mouse, the CropWidth and CropHeight variables are at zero, and that is causing the invalid input error. So I made it that it would not draw the rectangle until it reached a minimum size of 4 x 4 pixels but it still does not fix the error, I debugged to see if there was a problem with the values of the variables, but they all seemed fine, I even tries doing this CanvasGraphics.DrawRectangle(Pens.Red, 20, 20, 20, 20) so as to eliminate the factor of the wrong values, but still the same error.
In this screen I want to let the user decide which elements are on shown on a label. When I hit the update button (BDUpdate_Click; see below), it first checks whether the Barcode sample text is empty. Afterwards I want to invole the refresh of the label preview. The strange thing is that the first time it works fine, but when I alter the sample text and hit the button again, I get the Error "System.ArgumentException was unhandled. Parameter is not valid." The error points to the DrawSting function in the LabelPreview_Paint Sub
Dim BarcodeLabelUpdate As Boolean
Private Sub BDUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BDUpdate.Click
If BDBarcodeSample.Text = "" Then
MsgBox("Please enter a sample text", MsgBoxStyle.Information Or MsgBoxStyle.OkOnly, ProgramTitle)
[code]....
I am trying to run my program to test it. Actually I am trying to run second form to see it that its working properly or not. But it shows me error. First time I got this error message:
"Exception of type 'System.OutOfMemoryException' was thrown"
& second time I got this one
"An error occurred creating the form. See Exception.InnerException for details.
The error is: Parameter is not valid."
By the way my program has 25 forms.
have an OLE Object in my table, that may be jpg, doc, xml file.In case of jpg I'd like to show it (VS2005 Visual basic).I did next (not full code):Dim ms AsNew MemoryStream()Dimreader As OleDbDataReader = md.ExecuteReader(CommandBehavior.SequentialAccess )reader.Read()retval = reader.GetBytes(0, 0, outbyte, 0, bufferSize)ms.Write(outbyte, 0, retval)ms.Seek(0, SeekOrigin.Begin)curImage = Image.FromStream(ms)----> error "Parameter is not valid."I do not see the fault
View 3 RepliesI am getting a "Parameter is not valid " error when reading a value from an Image property and I don't know why.
Writing to the property works just fine (MyControl.EditImage = PictureBox1.Image) .
Reading from the property causes an error (PictureBox1.Image = MyControl.EditImage )
The Property looks like:
Private mNewImage As Image
Public Property EditImage() As Image
Get
[Code]....
I am trying to write a small app that will read images from an database to an image list. It does the first one, but then after that i get a "Parameter is not valid." exception ... see code below.
vb
Dim cn As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Application.StartupPath & "states.qmw")
Dim cm As New OleDb.OleDbCommand("Select * from tblStates", cn)
Dim rd As OleDb.OleDbDataReader
[code]....
I'm trying to make a Tetris game in VB 2010. I am having some problems with a function I have written that draws new squares and fills them with the colour needed. Here are the details of the error:
System.ArgumentException was unhandled
Message=Parameter is not valid.
Source=System.Drawing
StackTrace:[code].....
The line g.DrawRectangle(Pens.Black, lngX, lngY, 24, 24) is highlighted as the error. 'g' is the graphics of the form and lngX and lngY are the predetermined coordinates of the shape as long variables.I have researched this error but I couldn't understand Microsoft's explanation, and no other threads applied to my case.
I ve got a Problem with a Webservice. I ve Scripted it in VB.net -- Please has anybody an Idea
why this happens -- I can't find the Problem
[Code]...
In the following code all goes well until the .Sort line. Then I get an error which says, "The sort method is not valid. Make sure it is within the data you want to sort and the first sort by box isn't the same or blank."I've tried various permutations to deal with this exception, all to no avail. The Range is Selected ok and the Excel data are pasted from the clip board ok. Then I get the error and no sort occurs.
[code]...
i am using Visual Studio 2008, .net 3.5sp1 When i do the following oracle query on Oracle9i database
a)select NEW_TIME( sysdate, 'EDT','EST') as NT from dual;it works ok on Sql Developer and from vb.net
b) select NEW_TIME( sysdate, EXTRACT(TIMEZONE_ABBR FROM CURRENT_TIMESTAMP),'EST') as NT from dual;
c) select NEW_TIME( sysdate, to_char(EXTRACT(TIMEZONE_ABBR FROM CURRENT_TIMESTAMP)),'EST') as NT from dual;
Both b) and c) work okay on Oracle Sql Developer but fail when run via vb.net with error: ORA-01857: not a valid time zone
I want either b) or c) to be run successfully from .net I also tried replacing 'sysdate' with 'current_timestamp' and the results are similar.
Public Sub imageload(ByVal index As Integer, ByRef imagedescription() As String)
Dim da As New OleDbDataAdapter("Select Foto From Images where Photoindex = " & index & ";", Form1.baglanti)
Dim dt As New DataTable
Dim ms As New MemoryStream
[code]....
i was take "Parameter is not valid." error pff where is my mistake?
I've got the web browser with tabs in all working fine, but there's one bug, i can add tabs, delete em, etc.. but when i delete a tab then go to create a new tab, it gives me the error: InvalidArgument=Value of '6' is not valid for 'index'. Parameter name: index '6' is the number of tabs i had open.Here's the bit of code i use to create the tabs with the browser in it:
vbcode
Dim browse As New WebBrowser
browse.Name = "b1"
browse.Dock = DockStyle.Fill
[code]....
I have a method which requires a parameter to be passed in. I would like to use the Addhandler to call the method through a dynamically created button control's click event.
When I include () in the AddressOf, VS complains: 'AddressOf' operand must be the name of a method (without parentheses).
When I exclude the brackets, VS complains: Method '...' does not have a signature compatible with delegate...
My code:
CODE:
I have been trying to learn vb.Net for about a year now, but with other work getting in the way, my progress forward is moving, but not as fast as I would like. So I am hung up on this issue which seems like it should be a no-brainer but it still does not make sense, and I can't find any clarification on it.
With the
With MyPen
.Color = Color.FromArgb(LineColorVALs(7, SearchIndex1, SearchIndex2))
.Width = LineWeights(7, SearchIndex1, SearchIndex2)
End With
The array "LineWeights()" is declared as Integer and the values of the indexes are correct. This leads to an integer value of "1" coming out of the array and into MyPen.Width.
The ".Color" line executes OK, but I get the error, "Parameter is not valid." at the ".Width" line. I have tried declaring LineWeights as Short, too, but same problem.
I'm trying to use this overload
Split(ParamArray separator() As Char, count As Integer) As String()
However, when I use this
Dim tokens() As String = e.Node.Text.Split(New Char() {":"c}, 2)
I'm getting the ArgumentException (Illegal enum value: 2)
I tried using named arguments with no effect:
Dim tokens() As String = e.Node.Text.Split(New Char() {":"c}, count:=2)
Using this overload didn't weed out the error either:
Dim tokens() As String = e.Node.Text.Split(New Char() {":"c}, count:=2, options:=StringSplitOptions.None)
The error is occuring only at run-time. Intellisense swallows it without problem.
Run-time error '5200' Method 'endMessage' of object 'ISoapConnector' failed
Dim Serializer As SoapSerializer
Dim Connector As SoapConnector
Dim Reader As SoapReader
Set Connector = New HttpConnector
[code]....
Is there a way to choose between different methods and pass one into another method ?
Sub conditionnal_binding(ByVal list_box_reference As ListBox, ByVal list_box_final As ListBox, _
ByVal dico_source As Dictionary(Of String, List(Of String)), _
ByVal my_methode As ??? )
' DO SOMETHING
End Sub
I wrote ??? because I don't know how to call another method inside a method.
I would like to choose between different "sub-methods". Here is how I would like to use my method :
conditionnal_binding(ListBox1, ListBox3, HTML.dico_basic_attribut, best_method)
conditionnal_binding(ListBox1, ListBox3, HTML.dico_basic_attribut, some_method)
conditionnal_binding(ListBox1, ListBox3, HTML.dico_basic_attribut, another_method)
I get this error from my application, but not in the development environment (VS 2008). I created an installer package and have installed it on two different XP machines with no problem. However, on a Vista system when the application runs code to generate an image I get a "Parameter is not valid" exception. I have no clue what could be causing this given the circumstances. To generate the image I am creating a bitmap with a valid size and simply creating the graphic. Since I can't repoduce the error in VS I don't have a way to troubleshoot this.
View 7 RepliesI have a program with multiple forms. I have an upload picture from file form that shows a picture in a picture box when I choose it. However when i navigate away from that form and then return to it a large X appears in the picture box and wont leave. [code]...
View 2 RepliesI use following codes to display image from SQL Table's image field. But on this line
.Image = Image.FromStream(ms)
it shows this error message
Parameter is not valid.
[Code].....
I'm trying to code a class of RandomNumber. One of the class methods needs to populate a "List (Of RandomNumber)" ... which was passed as a parameter to the method ... with 10 random numbers between 1 and 50. DEAD SIMPLE :)
View 6 RepliesFollowing code doesnt work and raise error "A parameter is missing. [ Parameter ordinal = 1 ]".What s wrong with it?I am developing pocket pc application in vs 2008 and sqlce 3.5 sp1.
[code]....
I've rewritten my program so it would be more .net friendly (meaning I try to draw in picturebox.Paint event).
I try to use DrawLines using array of points, which are added by user one by one, but I can't figure out how to force my program to only use points that have been set by user and not the whole array.
When I call DrawLines pointing at my array of eg. 10 points and only 5 had been set, I end up with a nice set of lines with the last going to the upper left corner (0,0) and supposedly staying there for 4 more points, which is unacceptable.
I think of using ReDim Preserve each time, but I am not sure if it is the most efficient way to do this.
Anyone can think of something more elegant before I implement this redim monstrosity?
i'm trying to do a filename compare, sort of fuzzy match.Here's what code i have.First of all i load 2 directory's into 2 listbox's as strings and remove the filepath. Directory1
Code:
TextBox1.Text = FolderBrowserDialog1.SelectedPath
If TextBox1.Text = "" Then
Else
Then when i click the compare button i am trying to pass listbox1 and listbox2 through Distance and return the resulting fuzzy file matches.
Code:
Dim MyObject As New StringSift2
Dim ReturnVal As Single
ReturnVal = MyObject.Distance(ListBox1.SelectedItem, ListBox2.SelectedItem)
[code]....
But i get this error.
Code:
TreeView1.Nodes(lb1).Nodes.Add(ReturnVal.ToString())Specified argument was out of the range of valid values. Parameter name: index
I have a a method drawPaper(g, rect,.....).This drawPaper method is called on from another method (PrintPaper method) with the parameters passed on as (e.graphics, rect, .....) i.e drawpaper (e.graphics, rect, .....) why is the method called with the e.graphics argument not with g as per the method.
View 6 RepliesGiven the following classes, how can i intercept Class1.SampleMethod's Value from SampleAttribute?[code]...
View 2 RepliesI'm trying to make this code with reflection since I want it to manage Technician and other types too.
[Code]....