'ToQueryable' Is Not A Member Of 'System.Data.DataTable'?
Dec 17, 2010I have imported:
Imports System.Xml.Linq
Imports System.Data.SqlClient
Imports System.Data.DataTableExtensions
[code].....
I have imported:
Imports System.Xml.Linq
Imports System.Data.SqlClient
Imports System.Data.DataTableExtensions
[code].....
I added this lines in the form load of DataGridPrinter by Merrion in the codebank..[code]Unable to cast object of type 'System.Data.DataViewManager' to type 'System.Data.DataTable'.
View 2 Repliesevery time i run this code i get the same error
Unable to cast object of type 'System.Data.DataTable' to type 'System.Data.DataView'.
the code is
Dim plmExcelCon As New System.Data.OleDb.OleDbConnection
Dim cmdLoadExcel As System.Data.OleDb.OleDbDataAdapter
Dim PrmPathExcelFile As String
[Code]......
I get the below error Unable to cast object of type 'System.String' to type 'System.Data.DataTable'.This is the code I'm using
Dim str As String = String.Empty
If (Session("Brief") IsNot Nothing) Then
Dim dt As DataTable = Session("Brief")
If (dt.Rows.Count > 0) Then
[code]....
[code]This is my Code the error is Class 'System.data.datatable' cannot be indexed because it has no default property.. When i try this code in oledb it works but here it wont..
View 1 Repliesim trying to select some rows based on a criteria, i was wondering is it faster if i create a dataview (based on the criteria) and then loop through the view? or should i loop through the entire datatable and check the criteria manually.
View 5 RepliesWhy I am getting the following error:
Error: "ExecuteReader" is not a member of 'System.Data.OleDb.OleDbConnection'.
The following is the
Private Sub txtSearch_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtSearch.TextChanged
Dim MyReader As OleDbDataReader
If txtSearch.Text <> "" Then
[code]....
I 'd like to enable the user to apply a custom filter to a System.Data.DataTable.At the moment I have a very simple function like this:
Dim result = dataTable.Select(txtUserInput.Text)
With the filtered results I'd like to do further operations(e.g. Database Update/Delete).Is an sql injection protection needed or is the "Select" function secure?
//Edit:Can the "select" function be abused to manipulate any data in the datatable, execute code, ...? If the only danger is that this function can return to much/to less data there is no problem. But if the data in the dataset gets corrupted it's a real problem.
here I accidentally pull the power cable and my computer shutdown. After re-opening my project all my LINQ queries turned into this kind of error: ToList is not a member of "System.Data.EnumerableRowCollection" How to fix this?
View 8 RepliesI'm new in LINQ. According to some documentation I've tried following [code]...
View 8 RepliesI am working on a project that takes an xml schema and xml data files and places them into a DataTable, the 2 files are generated from a working table that i have written to disk. I wish to load these 2 files into a DataTable. Here is What i have
vb.net
Friend Function CreateTable(ByVal tableName As String) As Boolean
Dim table As New DataTable(tableName)
table.ReadXmlSchema(tableName & ".xsd")
[code]....
this however produces the following error on line 3
Quote:
System.ArgumentException was unhandled Message=DataTable 'get_item_list' does not match to any DataTable in source.
get_item_list is the parameter passed into this function (tableName)
how do I overcome it? I have created a class and compiled into .dll This code
[Code]...
In Visual Studio 2008, if I do this:
[Code]....
Does anyone here know how to get the above to work WITHOUT warnings being generated?
In the following code i get a warning at line 59:Warning 1: Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated.and.. At line 78 I get this Warning:
Warning 2 Property 'SelectedCustomer' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.
The program compiles and runs well, but i cant' undesrtand the reason for these warnings. Any Idea ?
1: Public Class Form1
2:
3: 'Form level members
4: Private objCustomers As New ArrayList
[code]....
Cannot appear to be able to get this function to not have the above error.Private Function GetIncidentActions(ByVal FromAgentID As Integer, ByVal ToAgentID As Integer, ByVal incidentAction As Integer, ByVal ActionDate As Date) As String
[Code]...
The following code get an error in IDE when ADD method is used on Methods4Cost. Generic List of should work fine but IDE complains "'Add' is not a member of 'System.Array'".
System.Collections.Generic
Dim Methods4Cost() As List(Of CostMethods)
Dim values As String()
Dim costmethod As CostMethods
[Code] .....
I have an error on this code what is the 'DefaultView' is not a member of bookroom.aspx.vb code
Partial Class BookRoom
Inherits System.Web.UI.Page
Dim SelectedDates As System.Collections.ArrayList
[code].....
I got this error within my code and haven't been able to figure out what is wrong with it,im not sure if im doing this Array Correct that could be the reason just looking for some guidance.
Dim imgPictures() As Image
imgPictures.Add(My.Resources.Red)
imgPictures.Add(My.Resources.Blue)
[code].....
Im using Visual Studio 2003.NET. When im trying to make the webbrowser1 work with the progress bar, it dosen't work. I have looked on youtube videos.[url]...
View 22 Replieshere is my problem:
'MaximumProgress' is not a member of 'System.EventArgs'.
'CurrentProgress' is not a member of 'System.EventArgs'.
Dim OpenFileText As New OpenFileDialog()
Dim InStream As Stream = Nothing
OpenFileText.Filter = "txt files (*.txt)|*.txt"
[Code]...
I've been reading the MSDN Library and I need to use the StreamReader.Peek Method to check a text file while a I parse it.
When I try to use the Peek Method, I get an error saying , "Peek is not a member of System.IO.Stream."
I don't understand why it is happening because I am following the examples on MSDN, and I even checked other sources and it seems like I am doing everything correct. I am hoping it is just something small that I have missed.
I am also importing System, System.IO, and System.Text.
why the following code
Dim myStrings(My.Settings.test.Count - 1) As String
My.Settings.test.CopyTo(myStrings, 0)
DataGridView1.DataSource = myStrings.Select(Function(s) New With {.Value = s}).tolist
would be giving me grief in an existing app but work fine when i put it a new project starting from scratch. I'm getting the following error:
Error 6 'Select' is not a member of 'System.Array'. C:Documents and SettingsAdministratorMy DocumentsMy ECUCSG3303Citation Browser v2.6Citation BrowserfrmCitation.vb 43 36 Citation Browser
I have a function in a VB.Net script file, but it produces the error 'CopyToDataTable' is not a member of 'system.array'.
Public Function CollectionFromTable(tableName As String, sql As String, sortOrder As String) As DataTable
Dim foundRows() As DataRow
[Code]....
I haven't had this problem before. For some reason, when I declare a variable,I.E.rand as a new random(), and try to use rand.Next, i get an error saying 'Next' is not a member of system.array. Not sure why this is happening.
[Code]...
I have this codes
Private Sub Form5_paint(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Paint
Dim redbrush As New Drawing.SolidBrush(Color.Red)
[Code].....
but got error "Graphics is not a member of System.eventArgs"
I'm having trouble understanding why i'm getting the error 'add is not a member of system.array'I'm using an arraylist and when I hover over my declaration of memberarray As ArrayList() the tooltip states 'Dim memberarray as System.Collections.ArrayList()[code]
View 1 RepliesI was just trying to create something and I found a little code on the web. When I pasted it it got 8 errors, and I could get rid of 5. The other three; I have no idea... It returns an error ('Value' is not a member of System.Windows.Forms.HtmlElement'). How should I fix this? The code is:
[Code]...
I must be missing something obvious. I have a class
[Code]....
Dim elements As System.ServiceModel.Channels.BindingElementCollection = _Client.Endpoint.Binding.CreateBindingElements
elements.Find(Of System.ServiceModel.Channels.SecurityBindingElement).EnableUnsecuredResponse = True
This is the error,i am getting in my code.the reason is the code is developed in some other environment.while trying to run in my system it giving error.i gone throug the service model dll,But EnableUnsecuredResponse is not a member in that.And i have tried to install some patches also.But i am not able to resolve the error.this is the patch i have installed ( link ) And EnableUnsecuredResponse is a member in system.servicemodel(framework(4.0)),i am using framework(3.5)
I am trying to make a network tool. And i cant find how to make a a portscanner.
So i taked a look at the internet and founded the following code:
Private Sub btnScan_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnScan.Click
Me.CheckForIllegalCrossThreadCalls = False 'Now you can Add items through a thread
[Code]....
It gives me the following error : 'Add' is not a member of 'System.Array'