Error There Is No Row At Position 1 When Saving Data ?
Feb 10, 2012
Error "there is no row at position 1" when saving data from datatable to database. I have two relational tables like "tbleInvoice" and "tblInoiceDetail" .
tblInvoice is a Parent table and tblInvoiceDetail
is a child table where InvoiceID is a primary key of tblInvoice & foreign key of tblInvoiceDetail in the database.The problem is that when i click the save button the data will be saved into database but also showing Error "there is no row at position 1".my coding structure is an under
Try
Dim com As new OleDBConnection
com.Connection= DBConn[code].....
I am getting an error of "There is no row at position 0." while saving the data to SQL CE, my code is as follows: -
Private Sub SaveButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveButton.Click Dim SQLDCC As String = "SELECT * FROM DCCData"
I have looking for a tutorial or class that demonstrates more than a trivial example of saving a windows position on closing. The ones I have found don't seem to work on all systems because of:
1. Multiple monitors. (and resolution between those monitors)
2. Toolbar size and position (toolbar is only on the primary monitor, well sometimes)
3. Sometimes the programs dont open on the right monitor they were closed on.
Is there an extensive class or tutorial on all the stuff a programmer needs to get right to have a window size and position persisted between executions?
I am trying to learn how to read XML file and created a little program below to start testing what I have read but keep getting error "Data at the root level is invalid. Line 1, position 1"The line where the error is coming from is the line "xmldoc.LoadXml(strFile)".. any ideas?
Code: Private Sub cmdReadXML_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdReadXML.Click Dim clsk As New clsHx
I have a delete button in a datagridview. The button works fine however when there is nothing to delete it throws an index out of range exception. Now I know for a fact people are going to click that button even though there is nothing the I am presuming the best course of action is going to be a try/catch but I am not sure how to do it. My code is as follows,
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick If e.ColumnIndex <> 7 Then
I am attempting to send my XML file through an API. I have done this no problem by using the below code, however when I try and send the FILE over it will not work, I am now getting in the browser:
Data at the root level is invalid. Line 1, position 39.
Without trying to send FILE it works:
' create the Xml that the Msxml2.serverXmlHttp object will send to the Webservice dim Xml_to_Send Xml_to_Send = "<?xml version=""1.0"" encoding=""utf-8"" ?>" Xml_to_Send = Xml_to_Send & "<xmldata>"
I am working on a program where some application config info is stored in a Userconfig.xml file. I am loading the file as an XMLDataProvider in the XAML via relative URI:
I have a number of items throughout bound to elements in the document and an event handler that saves to the XMLDataProvider:
Private Sub SaveConfig(ByVal sender as Object, ByVal e as System.EventArgs) 'TODO: Add event handler implementation here Dim SavePath As String = UserConfigDataSource.Source.LocalPath.ToString
[Code]....
When this executes I get the error "This operation is not supported for a relative URI". Is there a good way to produce an absolute URI (aside from getting the assembly executing location and trimming the executable filename from the end)? I expected this to be a somewhat simple procedure.
orking with vb 2010 and ms access as data base, just newbie.im trying to save the loged out date and time to my access table by selecting from tblloghist wherein my column SystemUserID is equal to my textbox SysID(located at my form) then it will save the timelogedout by getting the value of lbltime from my form. the problem is the data type property of my column SystemUserId is in autonumber so i got error saying "Data type mismatch in criteria expression"
Dim con As New OleDbConnection con.ConnectionString = "Provider=microsoft.jet.oledb.4.0; data source =..systemsdb.mdb" Dim ds As New DataSet
I'm I created a SQL Compact database for a program I'm working on and built the tables and forms. I'm trying to add the values entered into the textbox in to my SQL DB, but I keep getting the following Error Message.
"SqlException was unhandled:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)" Below is my code....Its erroing at the cnx.open()
Private Sub btnSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.Click Dim cnx = New SqlConnection(My.Settings.TestDBConnectionString) Dim sQuery = "INSERT INTO tblMain (Date) VALUES (@Date)"[code]......
rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary> ''' The TreeViewDataAccess class allows the nodes within a TreeView to be ''' persisted to xml for later retrevial. ''' </summary>
The file structure is fine for retrieving data from the file but when I go to write data to the elements and hit any of the fixed array elements, I get an exception error. this has got to be a sytax problem I am just not seeing.
It seems that I am not addressing the array member correctly yet the same logic pulls it properly from existing records on file.
in a Module I have the structure as follows:
Structure INVOICE <VBFixedString(6)> Public NUM As String <VBFixedString(2)> Public SYMBOL As String
like when i close a program, i want it to save its location (i guess to the registry, idk) and then when it loads, i want it to load back where it was.this is what i have so far. it saves to the registry ok, but it doesnt load where it should. also, my button1 click is what saves the location for now, but this code is just a test app for this.
I am trying to make a program that allows me to operate a program while I am not around (kind of like a bot) because I need to move alot of things and do the same motion over and over.
So in my program's settings I have made a form that is transparent that I want to set my working area with (i wont be resizing the form, it's size is "975, 575") and save the forms Top, Left, Bottom, Right positions so I can create a macro for my mouse to click.
how to save a forms position on the screen? So I can use it to set a working area?
I just want to save its current location to 4 variables
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
The Form Designer in the IDE is no longer working properly. When I create a new project, the Form Designer will work, but after I save it and close the IDE and reopen the next day the Form Designer no longer shows the form and instead says "To prevent possible data loss before loading the designer, the following errors must be resolved: An Error occurred while parsing EntityName.Line 2, position 62" If I click ignore and continue, then it just displays a blank form with no controls. The problem appears to have started after I unistalled and reinstalled VB2008 Express.
The above line prints the data contents of the ROData array in position three. I would like to be able to assign a specific position accross the line to have the printer print the data at without left padding the array data.
I need to control a device with a GPIB port. I have the commands that I need to use to do this; but I don't know which is the sintaxis in Visual Basic.
For example if I need to send a instruction like "START:0.01" to the external device which are the libraries that I have to include?, how should I write the programming line to do this?
The main tasks that I need to program are sending data, receiving data, and saving data
Okay so i have created my search form and everything works perfectly when you type into the text box the list box is filtered when you selected a name from filtered list box the customer details are shown and when you select a booking id number for that customers bookings you get the booking information however when i try to close to form i get an error no row in position -1 Since the close button on the form takes you back to the main menu this is an issue but i cant see why its doing this or how to fix it.
i am trying to populate all the emails in my distribution-list where comms = 'to', when my code reaches this part it gives me the error: There is no row at position 2 since i have 2 emails with comms = 'to' [Code] that i could see is that the for loops twice and strEmails shows the 2 emails but it does no stops there it try a third loop ans it stops at row = oTable.Rows(i) then it gives the error.
I have a combobox that is triggering the population of some checkboxes depending on the user mode. For some reason, when I put a MsgBox() at the beginning of the function, it works fine. But without that MsgBox(), I get the error that there is no row at position 0. MsgBox("value changed") '<---- this is the box that clears the error
I am getting the error there is no row at position 6 but there is data at position 6. May I know if there is any better way apart from this that will "see" the correct number of rows in the database and display out the correct rows in the database? So lets say you have one row auto - increment and one column containing the data. Currently now if i delete off the row no 6 and add back the row, the dataset cannot see this row anymore thus giving me the error, there is no row at position 6.
If i take off the auto - increment row and test this method out, i get the same error.
I am trying to save my scale configurations in the database so first I have to check if it exists in the database.and I am using the code below to do that . however when there is no data in the database I will get an error "No row at position 0" or when the scale number is not there i will get the same error.
I'm writing an application for seat reservations. I use a DataGridView to represent seats. Each free seat is coloured in green and occupied seats are in blue.DataGridView is populated with names from database and user could add a name to a seat choosing from a list.Moreover the user has the possibility to move a name from one seat to another - not occupied via drag and drop operation.Eveything works well, but when moving a name from one cell to another I have to position the cursor over a cell that is one row above and four columns on the left of that one I choose.Which is the reason? Here is the code
What I am trying tot achieve is the following:User inputs data in one form that saves to the dataset table no problems. On an edit screen I want the current data saved to appear in this page within all the relevant fields but when saving I want this data to add to the dataset table as an additional line of data so the transaction records are kept.I want to add a new datarow regardless of it saving one change or all 7 changes that are possble.
e.g. Line 1 - user inputs 7 cells of data Line 2 - user amends 2 cells of data Line 3 - user amends 1 cell of data an so on. Unfortunately the terminology for certain items above may not be correct as I am still new to this programming and still on a massive learning curve.At the moment I do not have the code for what I am trying to achieve as I really dont know where to start with it.I am currently able to save the data and have it appear in the "edit" panel however only the cells changed are saved an it overwirtes the initial input.
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
how to find the row position/index in a data table, using a value from another table. For example, I use the row position from Linkingtable1 to get my value for CustomerID, but i want to use the CustomerID to search the CustomerTable for its row position, in order to show the Customers Name in a text box, As currently when loading the textbox shows the customerID. I understand the code to get the names from the rows in the datatable, its just finding the row position of the customerID.
I have a text file containing the data in following format
12345 Abdt3 hy45d et45a 76huj agsj7
Now I want to replace hy45d with another sting that is created on run time. But I am not finding any way to do it. It keep replacing the firt item or append it in next line.Code that I am using is
Public Sub SaveToTextFile(ByVal PNR As String, ByVal CaseCount As Integer, ByVal Type As String) '- Location of the Text files Dim targetFile As String = "C:TestReportTextFilesPNR.txt"[code].....
I am using the following code to populate data in Textbox1:
[Code]...
I have few functions assigned in TextBox1_TextChanged event. The problem i am facing is this event is fired twice, once after the Fill command and another after the Position command whereas i want the event to fire only once after the Position command. What should i do?
