When Binding With Wpf Is There Way To Use System.String Funcntions Without Using Converters?
Mar 22, 2009When binding with Wpf is there a way to use System.String funcntions without using converters? [code]
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Unable To Cast Object Of Type 'System.String' To Type 'System.Predicate`1[System.String]
May 13, 2009I am getting the following erro message: "Unable to cast object of type 'System.String' to type 'System.Predicate`1[System.String]'." on the line of code: If Not StrgFrag.Exists(wrd) Then I was expecting a True/False response and assumed it would work given that wrd is a String variables and StrgFrag in a List(of String). Do I need to reference the wrd variable differently? Dim StrgFrag As New List(Of String)
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Value Of Type 'System.Func(Of String, String)' Cannot Be Converted To 'System.Convert
Feb 17, 2011Value of type 'System.Func(Of String, String)' cannot be converted to 'System.Converter(Of String, String)
Why? They are both effectively a function pointer (or delegate?) to a function that accept a string and return a string.
.net - How To Store System.Type W/o Late Binding
Jun 24, 2011I'm trying to store the "DataType" field value (type System.Type) of a DbDataReader.GetSchemaTable.DataRow to a class field of type System.Type.
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Option Strict On Disallows Late Binding With System.array?
Jul 19, 2011I have the following code which return wmi information (unknown array)
For Each objMgmt In oquery.Get()
For Each theproperty In objMgmt.Properties
If (TypeOf objMgmt(theproperty.Name) Is System.Array) Then
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VS 2008 : Error - Cannot Perform 'Like' Operation On System.Int32 And System.String"
Nov 2, 2009I'm trying to use DataView.Rowfilter and I'm getting an exception which says "Cannot perform 'Like' operation on System.Int32 and System.String".
Here's the code...
Dim str2 As Double = CDbl(searchSTR)
Me.shipperDV.RowFilter = fieldName & " LIKE '*" & str2 & "*'"
DB/Reporting :: Error: Cannot Perform '=' Operation On System.Int32 And System.String
Mar 6, 2010I wrote the code below which calculates the length of a line on the form and save record. An error occurs when the programme tries to save the record. It gives me "Cannot perform '=' operation on System.Int32 and System.String" error. I checked the data type of "ID"(int), "Microscope"(Varchar), "Magnification"(int) and "Calibration"(Decimal), and they are fine so far as I know.
Code:
Private Sub btnEnd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnd.Click
'Check if the length textbox is not empty
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Cant Count System String - Evaluate Exception Unhandled "Cannot Perform '=' Operation On System
Nov 3, 2009Here is the code I am working with, everything works fine up until last line then i get evaluate exception unhandled "Cannot perform '=' operation on System.Int32 and System.String." My eyes are going blind trying to figure out whats wrong, if I understand correctly it cant count system string and REO is a string value.
The thing i have done this before ,count that is. I know you cant average strings and some other function but i have been able to count.
d Dim comm As New OleDb.OleDbCommand("Select * From " & Me.OpenFileDialog1.SafeFileName & " Where Status <> 'S'", con)
Dim dalist As New OleDbDataAdapter(comm)
Dim comm1 As New OleDbCommand("SELECT * FROM " & Me.OpenFileDialog1.SafeFileName & " Where Status
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Cast A System.string To System.windows.forms.form?
Feb 23, 2009I want to cast a system.string to system.windows.forms.form
View 2 RepliesExtend Primitive Types Such As System.String And System.Int32?
Jul 25, 2010Is it possible to extend primitive types such as System.String and System.Int32 (IE: integer) in .Net 4 and if so how?
To be more specific, I am aware of the concept of partial classes but this doesnt seem to be the answer. Also I find that System.String is not inheritable and Int32 is a structure.
Lastly I am interested in knowing both a VB.Net and C# answer to the above question.
System.Int32 Cound Not Be Cast To The Type Of System.String?
May 27, 2011Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.Sql Partial Class _Default
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Cannot Perform '=' Operation On System.String And System.Int32
Jan 27, 2009For this code, I'm trying to have it pull the ID of the doctor from the database and only show their patients. I keep getting this error when I try selecting one from the list though, right at the red section.
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Cannot Perform '=' Operation On System.String And System.Int32
Nov 4, 2010I get an error "Cannot perform '=' operation on System.String and System.Int32" on the following code:
VB.Net Code:
Public Sub board2_OnGameWon(ByVal sender As Object, ByVal e As EventArgs)
If Not board2.isCheated() Then
Dim time As Integer = board2.getGameTime()' I have tried changing this to String
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The exception is in the lines where I 'Dim betterScores' above. The idea is that when the player wins a game their score is placed and held in the betterScore variable. It is then written to an xml file later on.
I have a Difficulty Menu item (System.Windows.Forms ToolStripMenuItem) containing 4 choices, 3 of them work but one doesn't. The one that doesn't work is "1.0 (Normal)" and in the Sub New is "adjustDifficulty(mnuDifficulty100)"I have copied some other subs that are associated with this code below.
VB.Net Code:
Public Sub New()
' This call is required by the Windows Form Designer.
InitializeComponent()
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Binding To Indexed Property With String Key?
Sep 14, 2009Say I wanna bind to dictionary that TKey is string with XAML:<Label DataContext="{MyDictionary}" Content="{Binding Item("OK")}" />Doesn't work.How should I do it?
View 1 RepliesParsing CSV String And Binding It To Listbox
May 19, 2010I have splitted comma separated values in an string array, something like this
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note 0,2,4,6,8 [even positions] are having number and odd positions are having string. I am having a class Attachmodel
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In the above i want to set the values and bind it to the grid, using List
VS 2008 - Checkbox : Binding To A String?
Nov 2, 2009I've got a datatable in a dataset binding to a datagridview. One of the columns in the datatable is called status, but it is a type string. It can be "0" or "1". On the datagridview, i want to bind it to a checkbox. if checked, it must put a "1" in the datatable and if unchecked, it must put a "0" in.
View 2 RepliesApply Formatting String When Binding DateTime To MaskedTextBox?
Feb 24, 2010I have a MaskedTextBox using the mask "00/00/2�00" to restrict input to a format of XX/XX/20XX, with the Text property bound to MyBindingSource.SomeProperty of type DateTime.
Recently, values with a single-digit month or day recently started displaying incorrectly. I expect that the ToString() method is being called on the value at some point in data binding, and I believe the call is not padding month / day with zeroes.
I tried setting the format type of the MaskedTextBox.Text property to DateTime in the advanced data binding properties, but it didn't help.
How can I apply ToString("MMddyyyy") when converting the DateTime object to a string, before the value is bound to the Text property?
Can't Convert System.string To System.string
Sep 1, 2010This should be an easy one. Basically I've been getting an error saying that it can't convert System.string to System.string[]. I just want to know some details about system.string[]. I can't find any on Google because it strips out symbols.
View 5 RepliesVS 2010 String Conversion - EValue Of Type 'String' Cannot Be Converted To 'System.Windows.Forms.TextBox'
Apr 8, 2011I'm trying to code a program but this error repeatedly shows up and I can't for the life of me figure it out EValue of type 'String' cannot be converted to 'System.Windows.Forms.TextBox'. It appears in relation to this code
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Late Binding - Declaring A String Variable And Assigning The Item Property?
Nov 27, 2011I have a problem involving late binding, and I absolutely cannot for the life of me figure out how to fix it. I have spent hours researching the problem to no avail, so I am turning to stackoverflow as a last resort.The problem is pretty much this: I am creating a grocery list application. I have a class named Item which stores the name, price, quantity, and description of an item on the grocery list. I have a module named ListCollection which defines a Collection of Item objects. I have created an Edit form which will automatically display the currently selected ListCollection item properties, but whenever I attempt to fill the text boxes, it tells me that Option Strict disallows late binding. I COULD take the easy route and disable Option Strict, but I'd prefer to figure out what the problem is so I know for future reference.I shall paste pertinent code here. (Late binding error is in EditItem.vb)
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I have tried declaring a String variable and assigning the Item property to that, and I have also tried grabbing the value directly from the List item (not using the Get function), and neither of these made a difference.
VS 2008 Binding Multiple Binding Source To One Binding Source Navigator?
Oct 29, 2011is there any way that i could link/bind multiple binding source to only one binding source navigator?
View 4 RepliesAdo.net Error (Unable To Cast Object Of Type 'System.String' To Type 'System.Data.IDataReader'.)?
Jan 29, 2012I am getting this error when I am tring to load string type to data table)
Using connection As New SqlConnection("connectionstring;")
connection.Open()
Using Command As New SqlCommand("SELECT ClientId,forename,surname from t_clientdetails
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ASP.Net Error - Unable To Cast Object Of Type 'System.String' To Type 'System.Data.DataTable'
Oct 4, 2009I 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
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Unable To Cast Object Of Type 'System.String' To Type 'System.Windows.Forms.TextBox'
Jun 12, 2011Unable to cast object of type 'System.String' to type 'System.Windows.Forms.TextBox'.
View 12 RepliesLINQ To SQL: Unable To Cast Object Of Type 'System.Guid' To Type 'System.String'
Nov 15, 2011I am getting a really bizarre error and it makes no sense at all.Basically I have a user entity which has a Password property. This property is of Type Binary, the server data type being Binary(512).I am reading this value in and converting it to a byte array. However whenever I run my code I am getting a completely unrelated error of Unable to cast object of type 'System.Guid' to type 'System.String'.This strikes me as very odd since I am not using a property or variable of type string or GUID anywhere in this procedure where it falls over.
The code is below:
Public Shared Function ValidateUser(ByVal username As String, ByVal password As String) As UserValidationMessage
Using db As New EntityMapDataContext
Dim u = From user In db.Users
Where user.Username = username
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Unable To Cast Object Of Type 'System.String' To Type 'System.IFormatProvider' Exception
Aug 7, 2011When testing the followng code from Mastering VB2010, I get an Unable to cast object of type 'System.String' to type 'System.IFormatProvider' exception.In the Button1_Click event code Dim strmOut As New System.IO.StringWriter(SaveFileDialog1.FileName)the 'SaveFileDialog1. FileName' is underlined with a green squiggle and displays the following tool tip:Runtime errors might occur when converting 'String' to'System. Iformat Provider'.This is apparrently the problem but what does it mean and how do I fix it to get the code to work? 'Code being tested that runs the exception:Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click.[code]
View 12 RepliesUnable To Cast Object Of Type 'System.String' To Type 'System.Web.UI.WebControls.Label'
Jun 6, 2011I have a page that get value from SQL. I'm having a problem when I initialize Label object with field having TEXT data type.[code]...
View 4 RepliesVS 2008 Unable To Cast Object Of Type 'System.String' To Type 'System.IFormatProvider'
Oct 20, 2010I have a bit of trouble right here, I am trying to get the data from the site and input them in the listview. Well, when my main app start to load through on debug, then it start to display a warning. The warning is: Unable to cast object of type 'System.String' to type 'System.IFormatProvider'.
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binding Navigators / Datagrid View / Binding Source Are All Sql Database Parts
Oct 18, 2010binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
View 2 Replies.net - Unable To Cast Object Of Type 'System.Int32' To Type 'System.String'?
Mar 20, 2012I'm getting a sporadic 'Unable to cast object of type 'System.Int32' to type 'System.String' Exceptions at .SingleorDefault() in the below code. It works 9/10 times but randomly it throws an exception. I made sure that SettingID that i'm passing has no Null Values and the data in the table always exists for the settingID, and i'm always passing SettingID as Integer.
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