VS 2005 Missing Operand Error In Computed Data Column?
Aug 25, 2011
I'm trying to add a computed column to a datatable that references another column in the datatable. Sometimes the computed column has a mathematical operation applied to it, but in this case I'm just referencing the original column. The code looks like the following:
The code isn't actually hard coded as shown above - there are functions that return the values for the first and third parameters - but I checked those and they are returning the expected values and not generating any errors themselves.
The error is thrown when the .Add method is called, and the error states "Syntax error: Missing operand after '_1' operator." It seems to me that it doesn't like the column name, which I suppose I could change and just workaround it at the presentation level. Still, I'm curious. Is this a bug in the .net framework or something? It doesn't mind "1_1" as a column name in the datatable, so why is it having a problem with it in the expression statement?
i got an error in my code which is [b]Syntax error: Missing operand before '*' [/B]operator. i am using visual studio 2005 and sql 2005 database here i attach the code.In this code i try to use button the search data in database( table name staff) using a column =NAME and text box as user input
private Sub Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsearch.Click Me.StaffBindingSource.Filter = "NAME = *" & Me.txtsearch.Text & "" End Sub
Can someone take a look at my "afilter".I am getting an error when I try to read a file.Syntax error: Missing operand after 'Number' operator it works with some files but others perhaps I dont have it written correctly. [code]
I was going through attempting to filter my second form by the first one (named PickaClient) when I got the following error: Syntax error: Missing operand after 'df24ff5' operator.The line of code which causes this is : PickaClient.ClientsBindingSource.Filter = "ClientsID = " & PickaClient.ClientsIDTextBox.Text
i got an error in my code which is Syntax error: Missing operand before '*' operator. i am using visual studio 2005 and sql 2005 database here i attach the code.In this code i try to use button the search data in database( table name staff) using a column =NAME and text box as user input
I want to select some rows from a sql express 2005 table. I am using this expression: "Starttime >= " & dtpStart.Value dtpStart is a DateTimePicker But I am getting this error: Syntax error: Missing operand after '14' operator.
OK, folks, help me figure out what I'm doing wrong. I have the following
Dim table1 As New DataTable("Table1") table1.Columns.Add("column1", GetType(Integer)) table1.Columns.Add("column2", GetType(String)) table1.Columns.Add("column3", GetType(String)) table1.Columns.Add("column4", GetType(Integer))
[Code]...
table1.Columns.Add("column7", GetType(String), "parent(Relation1).column6")On the last line where I try to add column7 I get an error saying "unable to find parent relation 'Relation1'". I thought I just added that relation?
I write this code for filter BookInfoDateView.RowFilter = "bookname LIKE '%" & TxtBookName.Text & "%'"but i get error massage like: Syntax error: Missing operand after 's' operator.
I have a filter which is applied to a database on a listboxchanged event, and applies the listbox.text as the filter, so for example if the selected item in the list box is 'Terminator 4' then thats the filter. Its set on the listbox selected changed liek this;
I have a Dataset with a Bunch of Columns used in a Report (DevExpress XtraReports) (DataSet being the DataSource). The Dataset has many columns, and i need to read a column (based on the row type), and decide which column value to read for the row, and apply formatting based on the row type.
[Code]...
Is there a suggested way to handle this in the Report or at DataSet Level (excepting the formatting part)?
i got two columns in mysql 2005 Grade and Remarks i need to do is.. when i input integers in grade column 1,1.25,1.50,1.75,2,2.25,2.50,2.75,3 then Remarks will show PASSED and when Grade is 4 up remarks will show FAILED(OPTIONAL)if Grade is null then Remarks will show UNKOWN this is my code but it doesnt works on sql computed column formula IIF(Grade >=4, 'Failed', IIF(Grade IN (1,1.25,1.50,1.75,2,2.25,2.50,2.75,3), 'PASSED','UNKNOWN'))
I'm have trouble summing a datagridview computed column. I can sum other columns in the DGV. Is it possible to sum a DGV computed column and have the result shown in a textbox elsewhere on the form? I have BindingSource with an End Date Column and a DaysLate computed by column. The calculation is in code and works fine. I now need a total days Late TextBox under the DGV days late column
i need the max ,min, avarage, for the 24 lines that lines counted from the line that contain the max date so i get the code for the max date for in the txt file this code used for both if txt file sorted by Ascending or by Descending
Private Sub cbxSubject_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cbxSubject.SelectedIndexChanged Select Case cbxCategory.SelectedItem
[code]....
I get this error message:Option Strict On disallow operands of type Object for operator '='. Use the 'Is' operator to test for object identity.But I don't know how to correct this.
Using StateProv As XmlElement = CType(hotelSearch.SelectSingleNode("/ota:OTA_HotelSearchRQ/ota:Criteria/ota:Criterion/ota:Address/ota:StateProv", nsmgr), XmlElement) 'i am getting error in this line.... StateProv.SetAttribute("StateCode", BLLHotel_Search.StateCode) StateProv.ChildNodes(0).InnerText = BLLHotel_Search.StateName End Using
error: "using operand of type 'System.xml.xmlelement' must implement 'system.idisposable'"
I'm trying to create an update form whereby if the user leaves the textbox (actionsTextBox) blank, then a default value of "no data entered" will be automatically bound to the textbox prior to updating the sql record. I keep getting this error: Compilation Error: Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: BC30577: 'AddressOf' operand must be the name of a method (without parentheses). [Code]
i need to select some records from table Tr_cashbook between two date. the date field is newdt in which i need to compare data and the records should be shown in crystal report named rptCash2. the newdt field has datetime property. here is the code on the command button
bdcon.Open() Dim QueryString As String QueryString = "Select * from Tr_Cashbook where (Cast(newdt as date)>= " &
[Code]...
but this is not working when i press the command button it gives error as operand type clash: date is incompatible with int.
this code below it gives me this error "error: Incorrect integer value: '' for column 'MPotProspect' at row 1"
[code]...
this give me another error "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1/" another way i tried when i highlight the myDatarow.Item(8).tostring and see what is inside there no data found.. but the other from mydatarow 7 to 1 there is data.. but in the database all of the fields including mydatarow(8) has data inside... why in mydatarow(8) when the program run it turn to null... may be the will cause the error...
Scenario: FormA has a DataGridView with a DataTable as it's DataSource. The DefaultView of the DataTable is set to a particular filter, say "UnitFreight < 2.00". The user selects multiple rows then selects a context menu item to open up form2. Form2 does a bunch of stuff and in this example it will change the UnitFreight value in the selected rows on form1 to say 2.27. It also raises an event in form1 to adjust attribute cells such as UnitPrice.
The issue is that doing the above example puts the selected rows out of the range of the applied filter and I believe this is the issue because I end up getting a "Column named UnitPrice cannot be found" error. This is happening during the update of those attribute columns. I'm guessing the row has been filtered out so there's no column to be found. If I do the update without the filter applied it works fine. So my question is, what's the best approach to updating the data in this situation. I've started converting the updates to work against the DataTable directly instead of the DataGridView.
Above is the code i use to retrieve information out from my database. Column Commissionable will return either '0' or '1'. how is it possible that when i bind it into the datagridview, Column "Commissionable" is set as a datagridviewCheckBox have 0 as 'Unchecked', and 1 as 'Checked'
I am creating a datatable and then adding a column to it which is filled with data from existing column and parsed into correct format DateSold is my existing column from my datafile and I create NewDateSold by adding the column to the existing table and then parsing the information in date format.
This is added to a binding source which then is used to populate a combobox I want to be able to sort the combo box by NewDateSold Desc I was able to this on the original column by simply using the "order By" in my query, it seems now that I added new column it is no longer sorted? I am finding different solution such as using dataview and wish to know the best way to do this
on the custom inherited control i created, i noticed that when i bind my custom property to a data column, if that data column returns a value other than Null it always return a datarowstate of modified even if there were no changes. don't make any changes to the current record before you go to the next record. you will see that the rowstate will still return Modified.
This is not a homework of mine and i had never tried ms access database with vb so i just gave it a shot. so this is my first time and i am just trying not asking anyone to complete my homework. I have been searching for this a lot on internet but couldn't find a solution to this so i decided to ask this question here. i have this sql code. what i want to do is that create a basic login form where users puts it's username in the UsernameTextbox and Password in the PasswordTextbox. If the the information match then a message box appears saying that the user is valid and if the information does not exist, a mesage box appears saying the users is not valid. now everytime i execute(run) the code, i come up with this error: Syntax error (missing operator) in query expression ''UserName' = 'Admin' 'PassWord' = 'testing123''.
The field names(UserName, PassWord) are also correct they are same as in the database. the information put in the username and password textbox are correct and they match the information on the database. But i dont know why this error comes up.
My code module is the following:
Imports System.Data.OleDb
Public Class LoginForm1
' Cancel button Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click Me.Close() End Sub
When you select Definition in VB6.0 there is this Last Position menu that lets you return to the line where the cursor is located previously, it seem to be missing in .Net IDE or I can not just find it?
I have got a serious problem. I installed Visual Studio 2005 and installed IIS that is running.When I create New Project on Vb.Net or C#. I am missing ASP.Net Web Application Icon or template from below:
Project/Solution Templates The first thing I noticed is the number of templates that ship with the Standard version. On New Project, the available templates are:
I am trying to returns records based on the last name of a customer in an access db. When I run the query in Access it works fine, the name in the examples returns 3 records with that last name. I use the same basic structure for other queries based on other fields (ID, UnitID etc) and they work fine.
my windows service crashes because of an unhandled exception in an oledb select command on ms access, i found that tables in query contain #Error as data value in some fields , can anyone tell me how to handle this case
