Forms :: FrmSearch Is A Type And Cannot Be Used As Expression
Sep 20, 2011
I have a project with 7 forms. I wanted to change the startup form for testing, but in the project properties application tab under startup form, only 3 of my forms show up as available. So I manually edited the Application.myapp file and changed the MainForm tag to frmSearch. I checked the property pages and now frmSearch is listed in the dropdown, and it is selected.
Run I compile I get an error:
Error 1 'frmSearch' is a type in 'MyTestApp' and cannot be used as an expression. C:Documents and Settings...My ProjectApplication.Designer.vb 35 27 MyTestApp
frmSearch is a form, just like other forms that work as the startup form.
I'm trying to create a dynamic html page from vb.net. Here is my code. I get the error "'DataTable' is a type and cannot be used as an expression" ' Create a new XML document.
Dim xmlDoc As XmlDocument = New XmlDocument ' Create the html tag. Dim xmlRoot As XmlElement = xmlDoc.CreateElement("html") xmlDoc.AppendChild(xmlRoot)
This is my window based project since many years ago. I have a public class, and I wanted to have two functions that return 2 different forms that i have in the project.
Below is the code that I'd tried but I got 'FormABC is a type and cannot be used as an expression' error message.
Public Function ShowEForm() As Windows.Forms.Form Return FormABC End Function
'Update' is a type and cannot be used as an expression. I've searched the forums and lowercased letters with no success.
Here is my code:
Dim SupplierContactNum As String = dataList1.DataKeys(e.Item.ItemIndex).ToString Dim SupplierContact As TextBox = CType(e.Item.FindControl("EditSupplierContactTB"), TextBox) Dim TitlePosition As TextBox = CType(e.Item.FindControl("EditPositionTB"), TextBox) Dim SupplierPhone As TextBox = CType(e.Item.FindControl("EditSupplierPhoneTB"), TextBox)
basically i have 16 checkboxes that indicate the status of digital inputs, either checked or unchecked, but rather than adress each and every one of them with a pile of repetative code, i set up a for-next loop and tried to change the status of the checkboxes with - is for index = 0 to 15, if blah=true then checkbox(index) = checked else checkbox(index) = uncheckedBut i get error- checkbox is a type and cannot be used as an expression.
I have some problems with a for loop in visual basic. Public Const numofblocks As Short = 88 Public Shared blocks(numofblocks) As PictureBox For x = 1 To numofblocks blocks((x)) = PictureBox(x) Next The error raised at the picturebox statement: PictureBox' is a type and cannot be used as an expression. The result of this for loop is that every picturebox in the designer form is named: blocks([number of picturebox]). I need this for some other for loops.
I have a panel with some controls in it (several textboxes, a slider, 2 buttons, and a small groupbox).. When I click a button, I want all of the textboxes within the panel to be readonly... So I have this code: [code] When I run it though, I get the following error:Unable to cast object of type 'System.Windows.Forms.Button' to type 'System.Windows.Forms.TextBox'.If I remove a button, it moves on to give me the same error but for a label..
I am developing a vb.net application with MS Access Database . I have a field(cut) with double data type in table marks of markss.mdb.[code]On debugging , when I enter ,say 7.9 , in Textbox 1 ,I get an error saying Data type mismatch in criteria expression.
Probably a simple problem but I'm failing to see how or why it's happening.
The error message I'm getting is Data type mismatch in criteria expression.
My coding is below:[code...]
The error is coming up when i'm filling the dataset, i've already figured that it works when the WHERE is removed.
So i'm assuming the mismatch must be from (VirtualLearningExercises.Level = '" & UserLevel). UserLevel is defined as a integer in vb and VirtualLearningExercises.Level is data type number on access.
I've had this problem many, many times. And it's always turned out to be a small typo or "" around an integer, but I just cannot find what's wrong with my SQL Statement this time! SELECT Card_ID FROM Payment WHERE Customer_ID = 12 AND Card_Number = 1231231231231231 The table and fields are named correctly (the table is actually a query).The only thing I can think of is the card number being too large, however it works fine in my INSERT INTO statement!All of the fields are formatted as their respective data types, ie. Integers are set to integer, not string.
I run a query on Access and although it warns me about null fields, it can still run the query and add the rows.However, when I run through JET in VB.NET, it says "Data type mismatch in criteria expression".Is there a way for JET to behave like Access (ie. still run the query and add the rows)?
I am getting this error when create new record. Data type mismatch in criteria expression.
Code: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim com As New OleDbCommand Dim d As Integer = 0 Dim result [Code] .....
i get a problem like this OledbException Data type mismatch in criteria expression. in ad.Fill(xDataset, "TblMaster") i'm using access database And Telerik Reporting
Public Sub TanggalX() conn.Open() Dim str9 As String = "Select * From TblMaster Where Tanggal='" &
A week ago, I encounter an error while doing my project. I failed to open certain form in vb.net. While clicking a button to show the form this will came out. "[An error occurred creating the form. See Exception.InnerException for details. The error is: Argument 'Expression' cannot be converted to type 'TextBox']".
i'm connecting to an excel spreadsheet to read some values.basically this module is going to determine if the date is a business day. This is achieved by comparing the date selected against a registered list (that is in the excel spreadsheet) that are holidays etc.
now I seem to be getting the data type mismatch error.. not too sure why at this stage..
So that error doesn't really make since. I mean I know what the error means but my query looks good and is what I expected.Is there any way to see the final outcome from SQLInsert. Parameters.AddWithValue..Before it gets to "SQLInsert.ExecuteNonQuery()" ??
I've got the following code to search for data from my database, but when I run the code its giving me a 'Data type mismatch in criteria expression.' but I cant for the life of me work out why
To fill my table I use: OleDbDataAdapter1.Fill(TAS_DataDataSet)
Then use the following to try and search for data by the employee ID;
Private Sub comboEmployee_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles comboEmployee.SelectedIndexChanged Dim EmployeeID, SQLString As String