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VS 2010 Conversion From Type 'Range' To Type 'String' Not Valid

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I have the following code to use Words spellcheck feature on a RTB. Once you pick the correct word in the spellcheck box and press change I get the error on th efollwoing line strResult = Left(objDoc.Content, Len(objDoc.Content) - 1) I tried to use CType() but still complains. If (Len(t.Text) = 0) Then 'nahhhhhhhhhhh Else [Code]....

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I am trying to save "Closed" when i click on check box [code]Conversion from string "TRUE" to type 'Double' is not valid.

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In a VS 2008 ASP.net 3.5 aspx.vb file, Response.Write(DDL.SelectedItem) worked very well.But "Dim filenameDDL As String = DDL.SelectedItem.Text" did not. Then I tried the following codes and found the problem -- Conversion from type 'ListItem' to type 'String' is not valid. [Code]...

VS 2008 Date Format - Conversion From String To Type Not Valid www.vbforums.com

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CDate("22/07/2010") Conversion from string "26/07/2010" to type 'Date' is not valid. What is wrong on this It was working fine on older versions...!

Conversion Error On Line 5 Stating 'Conversion From String 'S' To Type 'Double' Is Not Valid www.vbforums.com

a user will enter a number, n, which ranges from 1 to 30. they will also enter a "P" or an "S" (sum or product). depending on which was selected, it will calculate the sum or product of the numbers from 1 to n.i'm having a conversion error on line 5 stating "Conversion from string "S" to type 'Double' is not valid." [code]

VS 2010 : Conversion From Type 'DBNull' To Type 'Date' Is Not Valid www.vbforums.com

When I close my form without saving I want to check if the data on my form has changed since the last time I saved the data.This peace of code, which I included at the bottom always worked fine.Except when I compade a DateTimePicker with a null value in the db.Than I get the error "Conversion from type 'DBNull' to type 'Date' is not valid."Probably on this peace of Me.dtpVrijeDatum01.Value.Date <> CDate(reader("VrijDatumVeld01")).Date Or Me.dtpVrijeDatum02.Value.Date <> CDate(reader("VrijDatumVeld02")).Date Or Me.dtpVrijeDatum03.Value.Date <> CDate(reader("VrijDatumVeld03")).Date Or Me.dtpVrijeDatum04.Value.Date <> CDate(reader("VrijDatumVeld04")).Date Or Me.dtpVrijeDatum05.Value.Date <> CDate(reader("VrijDatumVeld05")).Date Or The total code to check the changes is: Private Sub CheckForChanges() LeesCheckboxWaarde(Me.chkFacAdrIsBezAdr, intCheckFacAdresIsBez) LeesCheckboxWaarde(Me.chkPosAdrIsBezAdr, intCheckPosAdresIsBez) [code]....

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i encounter this error while passing a string as datatable. I populate combobox1 with tables/sheets from excel and each table has datarows which i want to get the data and import to sql corresponding table, so, I declare Dim XLSTableName as String = Combobox1.SelectedItem And I encounter the this error : Conversion from type 'DataTable' to type 'String' is not valid how do i return the combobox1.SelectedItem as Datatable cos if i declare Dim XLSTableName as DataTable and pass it to the select Command thus: Dim objCmdSelect As New OleDbCommand("SELECT * FROM [" & XLSTableName & "], ODBConn) to obtain the dataRows I got the following error: operator '&' is not defined for types 'String' and System.Data.DataTable'

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I am currently in programming class and I have tried time and time again to complete a form called "theater revenue" that was assigned to me. Even though I have typed in a lot of code, it keeps telling me "Conversion from string "" to type 'Double' is not valid." These are the directions: "A movie theater only keeps a percentage of the revenue earned from tiecket sales. The remainder goes to the movie company. Create an application that calculates and displays the following figures for one nights box office business at a theater. Assume the theater keeps 20% of its box office receipts. Use a named constant in your code to represent percentage." Here is my code.... vb.net Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click ' Declare variables for the calculations. Dim dblATS1 As Double ' Gross Adult Ticket Sales as Double [Code] ......

VS 2010 Conversion From 'String' To Type 'Double' Is Not VALID www.vbforums.com

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VS 2010 Conversion From String To Type 'double' Is Not Valid www.vbforums.com

I have a form, which holds several comboboxes, textboxes, checkboxes.I use an msaccess database to store the values into.When I enter text in a textbox and then click the save button I get the following error:conversion from string "" to type 'double' is not valid.But I really don't understand, the field of the database where the textbox text is being stored in is a text type.I searched google for it and the problem seems to be that the type of data from the textbox isn't the same as entered into the field of the database.But the strange thing is, is that as far as I can see, it is.[code]

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I have an InputBox where I want someone to input a number. The number would be an integer. The line looks like this amount1 = InputBox("how many?", "how many?")If they click cancel, it errors out because it can't convert blank ("") to an int. How can I do this with InputBox and not get that error?

VS 2010 Conversion From String "" To Type 'Integer' Is Not Valid www.vbforums.com

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VS 2010 Conversion From String "" To Type 'Long' Is Not Valid www.vbforums.com

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I use following codes to retrieve data from table, but get error Conversion from type 'DBNull' to type 'String' is not valid. str = "Select * from gpass where vou_no= " & Val(Me.txtGat.Text) & " And Date = '" & Me.txtDat.Text & "'" dt = GetTable(str) If (dt.Rows.Count > 0) Then [code]....

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VS 2008 Conversion From String "" To Type 'Boolean' Is Not Valid www.vbforums.com

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Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 1" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 2" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 3" and "Name" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 4" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 5" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 6" and "ExpiryDate" cannot convert between unicode and non-unicode string data types. 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Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 18" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 19" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 20" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 21" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 22" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 23" and "DocumentLocation" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 24" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 25" and "SecurityType" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 26" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 27" can't be inserted because the conversion between types DT_STR and DT_DBTIMESTAMP is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 28" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 29" and "MortgageInsurancePolicyNumber" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 30" and "SecurityAddress" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 31" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 32" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 33" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 34" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 35" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 36" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 37" can't be inserted because the conversion between types DT_STR and DT_DBTIMESTAMP is not supported. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 38" and "SecuritySuburb" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 39" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 40" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 41" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 42" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 43" and "MortgageNumber" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: Columns "Column 44" and "TitleParticulars" cannot convert between unicode and non-unicode string data types. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 45" can't be inserted because the conversion between types DT_STR and DT_DBTIMESTAMP is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 46" can't be inserted because the conversion between types DT_STR and DT_DBTIMESTAMP is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 47" can't be inserted because the conversion between types DT_STR and DT_DBTIMESTAMP is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 48" can't be inserted because the conversion between types DT_STR and DT_I4 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 49" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 50" can't be inserted because the conversion between types DT_STR and DT_R8 is not supported. Error at Data Flow Task [SQL Server Destination [174]]: The column "Column 51" can't be inserted because the conversion between types DT_STR and DT_DBTIMESTAMP is not supported. Error at Data Flow Task [DTS.Pipeline]: "component "SQL Server Destination" (174)" failed validation and returned validation status "VS_ISBROKEN". Error at Data Flow Task [DTS.Pipeline]: One or more component failed validation. 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Why does the following code: A = not IsDBNull(CurRow("BuyBook")) AndAlso CType(CurRow("BuyBook"), string) = "Yes" results in the following error: Conversion from type 'DBNull' to type 'String' is not valid.

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