Convert Datarowview Data To String Format?
Jan 16, 2012I encountered error message "Conversion from type 'DataRowView' to type 'String' is not valid" when listbox1 item was selected. Listbox1 items were imported/binded from Access.
View 5 RepliesI encountered error message "Conversion from type 'DataRowView' to type 'String' is not valid" when listbox1 item was selected. Listbox1 items were imported/binded from Access.
View 5 RepliesI have two checkedlistboxes (chkLB_Sentinel and chkLB_Scourge) binded to my database.I have a listbox (LBPlayers) with 10 players in it (0 To 9) which I fill using the items checked in the checkedlistboxes and the display member is Nickname.Whenever I want a msgbox to popup containing the first player which is 0, I'm recieving the msgbox "System.Data.DataRowView"
I have this simple code:
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim con As New SqlClient.SqlConnection
con.ConnectionString = My.Settings.MyConnectionString
[code]....
The problem is if I write the msgbox without .toString I get an error "cannot convert to prompt" so I'm obliged to put .toString Why am I getting this kind of error even if I have the DisplayMember binded and how can I fix it ?
I have 2 forms, frm1 and frm2. frm1 has a combobox, cboLocations and based on what selection is made here, frm2 is loaded and its combobox, cboOffices is populated. I currently have the following code on frm1:
Dim frm2 as New form(cboLocations.SelectedValue.ToString)
frm2.ShowDialog()
When running, I'm getting an InvalidCastException was unhandled...Conversion from string "System.DataDataRowView" to type 'Integer' is not valid." error.
I have 2 forms, frm1 and frm2. frm1 has a combobox, cboLocations and based on what selection is made here, frm2 is loaded and its combobox, cboOffices is populated. I currently have the following code on frm1:
Dim frm2 as New form(cboLocations.SelectedValue.ToString)
frm2.ShowDialog()
When running, I'm getting an InvalidCastException was unhandled...Conversion from string "System.DataDataRowView" to type 'Integer' is not valid." error.
The input of strings is in 1 of 4 formats.
How to convert the following strings:
"0"
"00"
"0.0"
"0.00"
to: "00.00"?
MyRow = MyDT.NewRow()
MyRow(1) = rs2.Fields("Field29").Value.ToString
rs2.Fields("Field29").Value has values like "YYYYMMDD" in a string.how can i convert a "YYYYMMDD" string to a needed date format like 'dd mmm yy' (or any format)
Need to convert a string to normal datetime format so it can be correctly inserted onto a datetime type field. String Format: 4/21/2010 4:43:03 PM Example: 2010-04-21 16:43:03.000 I have clarified question: The need is to change format and not type.
View 4 RepliesHere's the basic premise though: I need to convert a GUID-like string to a different format as shown in these examples:
Original String:
{291B3A3B-F808-45B8-8113-DF232FCB6C82}
Converted String
B3A3B192808F8B541831FD32F2BCC628
[Code].....
It works, but it doesnt seem very well written... Oh and if you are wondering why I wrote my own ReverseString method rather than just using the Reverse extension method on the String class - It seems to return a collection of chars rather than a string (god knows why) and I couldnt find any easy/obvious way to convert this collection of chars back to a string (I thought just CStr would do it but apparently not)
I taken dtp value into date object but the date is displaying like this #12/16/2009#, how to get the date value should be 12/16/2009. Or suppose i took dtp text into a string then i convert string to date like this Date.Parse(string) but it's also showing the date value like this #12/16/2009# but i want date value should be 12/16/2009. How to do this in vb.net.All the Best
View 3 RepliesI wish to convert my string in format dd/mm/yyyy hh:mm:ss to a DateTime of the same format.
Dim ukCulture As System.Globalization.CultureInfo = New System.Globalization.CultureInfo("en-GB")
Dim myDateTime As DateTime
myDateTime = DateTime.ParseExact("18/05/2010 23:42:10, "dd/MM/yyyy HH:mm:ss", ukCulture)
When I step through this code the variable myDateTime is 05/18/2010 23:42:10 it appears that the dd/mm is the wrong way around and I cant work out how to correct this.
I can't seem to be able to convert a string that contains date value of "100714 0700" (2010-07-14 7am) to a date format in vb.net 2005.
When I attempt to do:
Dim provider As Globalization.CultureInfo = Globalization.CultureInfo.InvariantCulture
strPickupDateTime = DateTime.ParseExact(txtPickupDate.Text, "yymmdd", provider)
I get back "1/14/2010 12:07:00 AM". How can I get a value of "2010-07-14 7:00"?
I am using the following function to Convert a String variable to a Date. Subtract a day from it and convert the date back to a String. The code goes as follows
[Code]...
If edate has a value 29/12/2011 than the value in expenddt gets changed to a different format and the value in expenddt comes to 12/29/2011 and later after subtracting a day expenddt is 12/28/2011 and than when i convert it back to a String i get the value in asd as "12/28/2012 12:00:00 AM"
[Code]...
I have been struggling with this problem for several hours now and can't find the reason for the error message...I am reading a datetime string from a txt file, it returns this:"01/31/2011 6:13 AM" Now, I want to convert this string to datetime format. I don�t want to change the structure of the date... just want to convert in order to do some minutes and seconds calculations.I have tried all kind of options:
Timespan
Datediff
Parse
ParseExact with format.... culture... globalization
Nothing seems to work!
i have input of 1995 in the texbox.what is code to convert that string to DATE.... with format of Y
View 1 RepliesIs there are any way to convert boolean type into "ON"/"OFF" using string formatter
Like:
Dim inpValue as Boolean
Dim outValue = String.Format("0:ON;OFF", inpValue)
' should show OFF as output
I cannot use code or IFormatProvider
i want to insert a string as date format in mysql table using vb.net.my code is given below.but i always get an error .the string is stored in an array.
mycode
------
Dim sdfsa As String = Convert.ToDateTime(newarray(i + 17)).ToShortDateString().ToString("yyyy-MM-dd")
Dim newdate As Date = DateTime.ParseExact(sdfsa, "yyyy-MM-dd", System.Globalization.CultureInfo.InvariantCulture)
datarw("date_of_birth") = newdate
i have a string "07.03.2009 17.06.00" that i want to convert to datetime. i have tried
DateTime.ParseExact(Me
.Text, "MM.dd.yyyy HH.mm.ss"
, New
System.Globalization.CultureInfo("en-GB"
, True
))
I need to convert numeric string to date in format dd.MM.yyyy :(
View 2 Replies[cod]e...
will convert a string containing a decimal value to a nicely formatted currency value. Is there anyway to do this without first converting the string value to a decimal?
I have developed a vb.net application, which searches for different kinds of dates from a document. When i test the app on my Windows 7, VS2010 PC, the dd/mm/YYYY date read as string is correctly converted to valid date format, and then it can perform followingfunctiontstimespan =Date.Now.Subtract(Convert.ToDateTime(DesiredMatch.Value)).DurationIt works fine on development PC. But when i test the application on my client PC having Windows XP, it throws an error 'string was not detrmined as valid date time windows'.
View 4 RepliesIm getting that error in the da.Fill(ds)
Imports System.IO Imports System.Data.SqlClient
[Code]...
I got the System.Data.DataRowView when I tried to select the data from sql database. These are my code:
......
myCommand = New SqlCommand("SELECT FirstName +' '+ LastName FROM tblVisitor", myConnection)
myAdapter = New SqlDataAdapter(myCommand)
[Code].....
with a system of regional date configuration as dd/MM/yy
isdate("13/08/10 10:00") ' returns true, but with a system of regional date configuration as MM/dd/yy
isdate("13/08/10 10:00") ' returns false
how to handle this situation, all i need is i want to check a string for convert able to valid date format & then convert the same.
I have the following code found on internet:
Const WM_CAP_START = &H400S
Const WM_CAP_EDIT_COPY = WM_CAP_START + 30
'The first step is to recognize that the video captured by the web cam can be saved as individual images. By displaying a series of continuous images on the client, it is similar to watching a video stream. To capture an image, I have defined the following subroutine:
'---save the video data into the Image global variable---
Public Sub CaptureImage()
Dim data As IDataObject
Dim bmap As Image
Dim ms As New IO.MemoryStream()
'---copy the image to the clipboard---
[Code] .....
The problem is the code fail to retrieve the image from clipboard? What I'm trying to do is connect to a webcam, then save the video stream file on this webcam as bitmap file before transfer to the client side as an array of bytes.
I have a problem when i add new data then when i choose course in combobox example i will choose items in combobox "Bachelor of Science Information Technology" then when i save. then the result in course is "System.Data.DataRowView". What should be the correct Codes?
View 6 RepliesIm using datagridview in asp.net.When im trying to add row using footer template in find error coming up.I have corrected syntax and column is in Database.
<ItemTemplate>
<asp:Label ID="lblMembershipName" runat="server" width ="150px" **Text='<%# Eval("MembershipName")%>' >** </asp:Label> </ItemTemplate> <EditItemTemplate>
[Code].....
Im using datagridview in asp.net.When im trying to add row using footer template in find error coming up.I have corrected syntax and column is in Database.
<ItemTemplate>
<asp:Label ID="lblMembershipName" runat="server" width ="150px" **Text='<%# Eval("MembershipName")%>' >** </asp:Label> </ItemTemplate> <EditItemTemplate>
[code].....
I used this code:
myCommand = New SqlComman("SELECT RackName FROM tblRack", myConnection)
myAdapter = New SqlDataAdapter(myCommand)
myAdapter.Fill(myDataSet, "tblRack")
cboRack.DataSource = myDataSet.Tables(0)
then in the combobox i got the display "System.Data.DataRowView".
I've got an xml file that i'm trying to bind to a combo box. i'm trying to save the selected value of the combo to another text box. when my form initially loads, the text box shows System.Data.DataRowView instead of the currently selected value.i've read on other posts that this can happen if you don't have the right column names specified. but i'm pretty sure that's not my problem... because i'm not using string values for names, but referencing them by index. also, the actual combo boxes do display the list of values.[code]...
View 3 RepliesIm looking for a class or code in VB.NET that can convert a black and white image in JPEG format to a grayscale TIFF format.
View 2 Replies