I am getting an error with this Dim Web As New WebClient Web.Proxy = "69.196.16.237:62159" It says runtime errors may occur when converting string to System.Net.IWebProxy What does that mean?
View 9 RepliesMy program takes user input, replaces all spaces with "+", then inserts it into a search url for a specified web host. For example, the user enters:"How long is a foot?"
The generated URL (in this case I'm using dogpile.com) is:
"http://www.dogpile.com/info.dogpl/search/web?&q=How+long+is+a+foot"
This method has worked before for me, but now I just get an Internal Server Error every time the code is executed.
i am learning vb. net for my IT class. i have been set the task of making a simple web browser. i have been able to insert a web browser window into the form and set the url in the properties tab in the editor. i have inserted a buton and a textbox and have written code so that when clicked the text in the textbox will be set as the url property. below is the code i have used
[Code]...
I'm trying to download a simple text file from a web server. It's easily accessible from the web browser and I can download it from the web browser. However, whenever I use a WebClient to download the file, I get a 403 Access Forbidden Error! I'm not sure what I'm supposed to do. I haven't come across this kind of error in programming before and I'm not sure what I'm supposed to do to get around it.
View 2 RepliesI'm saving the font of a label to a text file, and when I open the text file with my program, I want the label to have the same font that is listed within the text file. Now, the only problem I am having is that when I try to write the code for opening the text file, I can't set the font property of the label to a string. Label1.Font=[Font: Name=Microsoft Sans Serif, Size=9.75, Units=3, GdiCharSet=0, GdiVerticalFont= False]Here is what the code to open the text file and set the font of the label looks like:[code]The problem for the code happens at line 6. The error is: "Value of type 'String' cannot be converted to 'System.Drawing.Font'"ing each part of the font in the text file(i.e. Writing Font.Name and Font.Size properties in separate lines and then setting the label's font properties to each line accordingly), but I still get hit with the same error.
View 12 Replieshow to convert system.string to char for label text?? Here it my
[Code].....
I need to get the strings from the site and input the fields strings in the label text, so I needs to convert char of system.string but i don't know how to fix it.
I need to count the number of files in a specific folder. The folder I need is in the directory path of ApplicationData. The only method I could think of to grab the path, is to combine it via a string, like this: vb.net
[Code]...
I'm not sure if i titled this question properly or am asking it properly, but here goes.I've got serialized objects (in XML) stored in a database, along with a string/varchar indicating the type.
[Code]...
I am having a heck of a time trying to convert my code that works using web browser but I am trying to get the same effect using a WebClient instead.
Private Sub WebBrowser1_DocumentCompleted_1(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
For Each Image As HtmlElement In WebBrowser1.Document.Images
If Image.GetAttribute("src").Contains("captcha") Then
Dim Web As New Net.WebClient
PictureBox1.Image = New Drawing.Bitmap(New IO.MemoryStream(Web.DownloadData(Image.GetAttribute("src"))))
End If
Next
End Sub
I'm trying to use DataView.Rowfilter and I'm getting an exception which says "Cannot perform 'Like' operation on System.Int32 and System.String".
Here's the code...
Dim str2 As Double = CDbl(searchSTR)
Me.shipperDV.RowFilter = fieldName & " LIKE '*" & str2 & "*'"
I wrote the code below which calculates the length of a line on the form and save record. An error occurs when the programme tries to save the record. It gives me "Cannot perform '=' operation on System.Int32 and System.String" error. I checked the data type of "ID"(int), "Microscope"(Varchar), "Magnification"(int) and "Calibration"(Decimal), and they are fine so far as I know.
Code:
Private Sub btnEnd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnd.Click
'Check if the length textbox is not empty
[Code].....
I am playing around building a VB.net windows forms app.Mostly going well, but when I do executenonquery I am getting the error:Failed to convert parameter value from string to int32. I am unclear where the problem is but here is my code......
Private Sub cmdClockIn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdClockIn.Click
Dim empNum As Integer = Convert.ToInt32(frmMain.txtEmpID.Text)
[code]....
using Visual Web Dev 2008 Express and i am having an error when converting a set of integers to string. see code below. I cannot work out what it is that i am typing incorrectly. For ref, i return ten 0's as the result.
Dim numbers(9) As Integer
For i As Integer = 0 To numbers.Length - 1
numbersString &= numbers(i).ToString & " "
Next
textbox2.text = numbersString
i have a textbix in which the user is restricted to enter date in the following format "dd/mm/yyyy" .
then in code behind I am calling a stored procedure to which i am passing this date as a datetime parameter but i get an error
objCmd.Parameters.Add("@DateOfApplication", SqlDbType.DateTime).Value = Convert.ToDateTime(txtDateOfApplication.Text.Trim)
how I might cast convert this string date into datetime to pass to my stored proc
I have the following code:
Imports System.Data.SqlClient
Public Class Main
Protected WithEvents DataGridView1 As DataGridView
[code]....
When I debug this, I put the line break on that line and look at the Table Value, which shows 0, but I know that there is data for that time frame.
i am using DateTimePicker control....my code is TextBox2.text=DateTimePicker1.Text.......while changing it correctly dispaly the selected date in textbox......the problem is i want to store the date in my database of field datetime type........when i click the add button it shows "Syntax Error Converting DateTime from String"
View 1 RepliesGetting this error when updating a row via a gridview with a sqldatasource in Vb.net/SQL Server 2000. No matter what input (1/1/2010, blank, etc) I give it I can't seem to get it right.
Code before the input is passed to the sp:
Dim sqldatenull As DateTime
Dim DateVerify As DateTime
sqldatenull = DateTime.MaxValue
[Code]....
Im in the process of building a call loggin system and its finally been put on the server, but i keep getting the above error "Title" the first stage it goes to be authorised and when the authoriser auths it...it updates the table with the date they authorised it. which is fine, the next stage is the Business Analyst where they check all the content of the task and then approve it but for some reason unknown to me it keeps falling over on the .dateAuthorised
My Sql Column to hold the date authorised is a Datetime datatype and im converting a string to a data time within the procedure this is my Code behind page
Dim StatusNew As Integer = 53
Dim CurrentStage As Integer = 51
ITUpdateTaskTable.Add("@spWorkID", Replace(TskNumLab.Text, "LC", ""))
[Code].....
I have the following code:
Imports System.Data.SqlClient
Public Class Main
Protected WithEvents DataGridView1 As DataGridView
[Code]....
When I debug this, I put the line break on that line and look at the Table Value, which shows 0, but I know that there is data for that time frame.
I'm trying to get the first checked item from a checked list box and turn it into a string. I tried using [code]But that threw an error at me: "Conversion from type 'FileInfo' to type 'String' is not valid." So then I thought of dumping it into an array. But then I couldn't convert the array to a string.Remember I only want one value. array(0)
View 1 RepliesWorking on a Sudoku program and I want to read a puzzle in from a file. So, I read the file in as a string in the form --3-2--1- and so on, where - means nothing starts in that cell. How do you convert a string to a short? I found the cshort function but it doesn't seem to work. Is there a different way or am I making some other mistake?
SudokuPuzzle is a string where I read in the file. squareValue(i,j) is the number is the ith row, jth column position of a correct solution I used 1 to 9, 1 to 9 as the indices for my puzzle (and just ignore the 0, though I did Dim as (0 to 9, 0 to 9)), so that is why I have the i - 1 and j - 1 in there.
For i = 1 To 9
For j = 1 To 9
If SudokuPuzzle.Substring(9 * (i - 1) + j - 1) <> "-" Then
squareValue(i, j) = CShort(SudokuPuzzle.Substring(9 * (i - 1) + j - 1))
End If
Next
Next
The error is: Conversion failed when converting date and/or time from character string.Basically I'm trying to make it so that when someone clicks a location in a list box it increments the correct field in a Stats table by 1 to say that they clicked the location. I've been trying to solve this for a while now and can't get anywhere. My date is in date format, and so is the Date field in my Stats table. My code can be seen below.
Dim Current As String
Dim Check As String
Dim objCmd2 As Object
[code]....
The issue comes in with the second SQL statement I think. I don't understand why adding a date into a date field would be an issue, I've tried adding it as a string which didn't work.
Dim i as integer
For i = 0 to 365
sqlinsert.InsertCommand="insert into cashdate (date) values (getdate()+'" & i & "')"[code]....
getdate is a function in the database that returns the datetime of now i have an error that says conversion failed when converting date or time from character string .what to do now ??
i was used to be vb 6.0. but now im starting with vb 2010 because 6.0 is old. but now i have a few problems with converting some things for my game that im making.
in 6.0 it was
modPlayer (module)
Public Player(1 To MAX_PLAYERS) as PlayerRec
Private Type PlayerRec
Name as string
Level as string
End Type
but this code gives in 2010 some errors; it says it should be structures right now?
Module modPlayerRec
Public Player(0 To 100) As PlayerRec
Structure PlayerRec
Public Name As String
End Structure
End Module
what should be the right code for vb 2010? this is not working what i have right now.
I am getting this error when I am tring to load string type to data table)
Using connection As New SqlConnection("connectionstring;")
connection.Open()
Using Command As New SqlCommand("SELECT ClientId,forename,surname from t_clientdetails
[code].....
I get the below error Unable to cast object of type 'System.String' to type 'System.Data.DataTable'.This is the code I'm using
Dim str As String = String.Empty
If (Session("Brief") IsNot Nothing) Then
Dim dt As DataTable = Session("Brief")
If (dt.Rows.Count > 0) Then
[code]....
I'm trying to code a program but this error repeatedly shows up and I can't for the life of me figure it out EValue of type 'String' cannot be converted to 'System.Windows.Forms.TextBox'. It appears in relation to this code
[Code]...
If i type this in:
CODE:
I get an error: Error 1 Operator '=' is not defined for types 'System.Drawing.Image' and 'System.Drawing.Bitmap'.
I have also used 'is' instead of '=' but that doesn't work either.
I'm writing an application in vb.net to download files from a remote server by ftp using WebClient Class
View 2 RepliesI want to make a download Manager with resume capability (dont refer me to codeproject examples which use httpwebrequest and webresponse classes) i want to make the use of system.net.webclient class. I know it can provide me with events and stuff but is it possible to resume our downlaods with this class ?
View 6 Replies