The Value For Column 'DoC' In Table 'cutters' Is DBNull?
Sep 6, 2010The value for column 'DoC' in table 'cutters' is DBNull.
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The Value For Column 'DoC' In Table 'cutters' Is DBNull
May 27, 2012i have a datagridview connected to a database with different types of columns, one of the columns is date and sometimes that date is empty i am using that to search
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
Dim search As String
search = "%" + TextBox1.Text + "%"
[code]....
ERROR "The Value For Column 'Type' In Table 'Fields' Is DBNull"
Feb 8, 2010I have error. How I can fix this? My error message is "The value for column 'Type' in table 'Fields' is DBNull."
Dim adapterFields As New _MyDatabase_1DataSetTableAdapters.FieldsTableAdapter
Dim fieldsRow As _MyDatabase_1DataSet.FieldsRow
For Each fieldsRow In adapterFields.GetDataByCategory(Me.ComboBoxCategory.SelectedValue)
msgbox(fieldsRow.Type)
Next
Check Column Is DBNull Or Not?
Feb 10, 2010I have simple app code:
Dim sw As New StreamWriter(FileName, False, System.Text.Encoding.GetEncoding(Encoding))
Dim adapterPositions As New MyDatabase1DataSetTableAdapters.PositionsTableAdapter
[Code]....
How I can check column is DBNull or not?
.net - LINQ Error Type DBNull Column?
Apr 29, 2011I am querying a datagridview and it works great unless one of the cells has nothing (dbnull). How to over come this?Exceptions: Operator '=' is not defined for type 'DBNull' and type 'DBNull'.
Dim query = From row As DataGridViewRow In DataGridView1.Rows _
Where row.Cells(SelectedColumnIndex).Value = filter _
And row.Visible = False _
Select row Distinct
Calculation Column Totals DataGridView, Cannot Cast From DBNull To Other Type?
Jun 30, 2010I've spent the last three day on this. Hope someone can shed some light on the problem.I have a datagridview I which to total a column and place in a textbox. with the coding below I do get the first number and it is place correctly in the textbox but when I complete the data row and move to the next, I receive the following error. "object cannot be cast from DBNull to other type." Read and tried a lot of ideas on line , could not get any of them to work.
[Code]...
Failure is not an option! But sometime you need to look at those option.
Replace Column By A Related Column From Another Table In DataGridView
Dec 14, 2011I have:
- Table1 with columns: PK_ID1, LOCATION, DIRECTOR, SELLER, SELLERID, WORKTIME (relationship), WORKCODE
- Table2 with columns: PK_ID2, WORKCODE (relationship) & WORK_DESCRIPTION
My DataGridView do a SELECT * FROM Table1;How can I replace WORKCODE with WORK_DESCRIPTION in DataGridView, please?
Forms :: Error "system.argumentException; Column 'test_id2' Does Not Belong To Table Table
Mar 24, 2009I am getting the error "system.argumentException; Column ' test_id2' does not belong to table Table. At System.Data.GetDataColumn( string columnname0 at system.data.datarow.get_item(string columnName).
This error is occuring right after I set the parametervalues in the report object of the Crystal report.(Note this a visual basic.net 2005 windows form application.)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cryRpt As New ReportDocument
Dim sql As String
[code]....
The value for the first parameter @Parm_1d1 value to the crystal report version 11 is correct. However, when trying to access the second @Parm_1d2 parameter ,the values past to the crystal report is not correct.
How To Alter Table Column Name In Microsoft Access Table
Oct 23, 2009I get a Syntax Error with the following code"ALTER TABLE receipts RENAME COLUMN payees TO payee"what I am doing wrong
View 18 RepliesSql - Select Max (column) From Table (column Is Varchar)?
Jun 16, 2011I am going to make a invoices then.. they are going to have a id it is not going to be identity, it is not my idea, this is the idea's my professor's. then he want it so..he didn't want i change id to int, he want it was varchar..but now i have seen this is as identity.. id =1, next id=2, next=id=3.. but it doesn't mind he told me in the future it is going to be so..
abc000002
abc000003
abc000004
[code]....
then for that he doesn't want i change it to int how can i get the last? i want it one plus next i want it was
abc000010
how can i do it? i am working on visual basic and visual studio 2008i can use a loop-for, or a query for solve it?
"Conversion From Type 'DBNull' To Type 'Boolean' Is Not Valid" After Checking That It's Not DBNull
Jan 18, 2012In my ASP.Net Web-Application, I'm getting this error: Conversion from type 'DBNull' to type 'Boolean' is not valid.
[Code]...
Get Table Column Name Using .net?
Sep 10, 2009In my code i have succesful get table column name. But i want the first table column name showing not all. rs.Open(strSQL, adcLEDGER, ADODB.CursorTypeEnum.adOpenKeyset, ADODB.LockTypeEnum.adLockPessimistic)
Flds = adrCURR.Fields
TotalCount = Flds.Count
For Each fld In Flds
MsgBox(fld.Name)
Next
Add Column To Table With Values?
Oct 5, 2011I have a table called Table1 which already has a few other columns and 4 rows. I want to add three new columns to it. When the columns are added I want all the cells in the column to equal the variable I supply in the Add method. When I add the column named "BatchID" it works beautifully, but when I add "UserID" it gives an error "Cannot find column [iqz9]". Why? This is how Table1 should look like:
[code]...
All Column Names In A Table?
Jun 3, 2011i recently posted a code that i had that i needed assistance for and it was solved it was for displaying all tables in a database.but now i have this code for showing all column names in a table i was in the process of turning it from oledb to sqlclient. GetOLedbSchema can be turned to getschema but when it comes to OleDbSchemaGuid
Public Shared Function getAllColumnNames(ByVal tblname As String) As String()
Dim com As New SqlCommand
Dim con As SqlConnection
[Code].....
All Column Names In Table?
Jan 17, 2011i have this code for showing all column names in a table i was in the process of turning it from oledb to sqlclient. GetOLedbSchema can be turned to getschema but when it comes to OleDbSchemaGuid
Public Shared Function getAllColumnNames(ByVal tblname As String) As String()
Dim com As New SqlCommand
Dim con As SqlConnection
[Code]......
Column 'XX' Already Belongs To Another Table?
Nov 3, 2006Column 'XX' already belongs to another Table?
View 4 RepliesDisplay Value Of A Column From Table?
Jul 29, 2010I have a problem i want to display value of a column from table i want view the value when form loaded. I am writing this code on form load but its not working
Dim cnString As String
cnString = ("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\PaymentSystem\PaymentSystem\bin\Debug\Payment.mdb;")
[Code].....
Error 5 Column C Not In Table T
Aug 10, 2010I am writing an app in VB2010. My code parses a text file, assigns data to variables My? and then attempts to store this data in an access 2010 table. Yet, whenever my code gets to MyRow.Item("Artist") = MyArtist I get an error 5 'Artist' does not belong to Table T, but the field/column does exist in the table as do all the others.[code]...
View 5 RepliesFormat A Table Column?
Nov 17, 2009VB has created the following code:
Partial
Public Class AwardsDataSet
Partial Class RevExpDataTable
[code]....
I am not sure of the command for format the Table 'Revenue' column for currency. Also is there a way to do calculations? I need to multiply the value by -1?
Know If The Table Column Is Unique?
Mar 15, 2012currently, what i want to do is, add a column in a table "default" during runtime. Well, I've got that covered already.
The problem is, the column names are actually taken from the users input through a textbox or drop down list and of course, if the same column is added already in the table, it generates an error since it has to be unique.
That is why i wonder if it is possible to know if a column already exists without viewing the form which contains the grid view of that table?
Put Unique Value To Column In A Table?
May 21, 2011Is there a quick way to put unique value to column in a table? Assuming I want numeric values starting from 0.
View 4 RepliesRetrieve Value Of One Column In A Table?
Apr 27, 2010Here is my problem:I have 2 tables Accounts and Transaction Logs.in Accounts table, it has column "Amount" which is a base amount of an account.and in Trans Logs table, it also has column "Amount" which is additional (add or minus to the base amount) amount of the account.and I don't know how to retrieve that base amount to edit it, then save it back to the table.That means I need to get a value of the right column by using Acc_No to find. I'm using DataSet, by the way.i think it should go like this:
Dim Amount as Decimal
Amount = *the code to retrieve the base amount*
Amount = Amount + txtAmount.Text
*the code to save the new amount back to Accounts table*
Display A Table In GirdControlView, But Only Display 1 Column Out Of 4 Column
Jun 6, 2011i am developing a software using microsoft visual studio basic 2010. I set up a connection string to my server and take the data from there. I am using gridcontrolview and put my "product" table in here. It contain 4 column: systemid, system, actualid, description. I want to display only system column (it's easy, just hide the others column) But, In "system" column, there are a lot of similar data, i want to display only distinct data from this column in the grid
example, the column consist: STSTEM
topaz
topaz
topaz
[Code]....
i try to user "add query", buat if i get rid of the other 3 column, there will be error message like "the output is different with the schema"
Add A Column To An Existing Table In Database?
May 23, 2010I need to add a column to an existing table in my database. I am having trouble adding a column to my database. I physically go into Microsoft Access and add the column, my problem comes up when Visual Studio does not recognize the table. Basically, I think I'm doing something wrong.
View 5 RepliesAdd A New Column To An Existing Access Table?
Nov 20, 2010What I want to do is add a new column to an existing access table which I have already created using the code below.
'Define the connectors
Dim oConn As OleDbConnection
Dim oCo
[code].....
Adding New Column To Existing Table
Jan 17, 2011I wanted to add new column to the existing table in my database table Please help.in the form it has a textbox in which you can enter any name that you want you column to bear. all this will be at runtime.i try but it keep saying (format of the intitialization string does not conform to specification starting at index 0) [code]
View 7 RepliesColumn 'CHARACTER_OCTET_LENGTH' Does Not Belong To Table
May 3, 2012I have an error with a software made in Vb.Net. Can I look somewhere to try something?
[Code]....
Column 'xxxx' Does Not Belong To Table?
Dec 21, 2011Dim
pjCntRow
As
[code]....
Column Does Not Belong To Table Error In .NET
Dec 9, 2011I have a routine in a custom class that is assigning values to an object based on data from a table row. However, several tables may be used to update these values and only have some of the fields in common. Therefore, I want to check each field value to make sure it exists before I attempt to access it's value to assign to my object. However, I am getting the error "Column x Does Not Belong To Table."
'error occurs on first line
If Not memberRow.Item("nickname") Is Nothing Then
returnval.NickName = Trim(memberRow.Item("nickname").ToString)
End If
Comparing A Text Box Value To A SQL Table Column?
Jun 3, 2010Does any one know how I can compare the numeric value of a text box on my Visual Basic 2008 form to the values in a particular column of a SQL database table? Things seem to work fine with bound controls when there are related records in the child table, but if a value is selected that has no related child records the form continues to display old information from the last record viewed. I would prefer to have the fields on the form go blank.
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