Value of type 'String' cannot be converted to 'System.Net.Mail.MailAddress'
My code is below:Protected Sub btnSendMsg_OnClick(ByVal Source As Object, ByVal E As EventArgs) Dim myMessage As New System.Net.Mail.MailMessage Dim myAttachment As System.Net.Mail.Attachment Dim myMail As System.Net.Mail.SmtpClient If Page.IsValid() Then myMessage.From = txtFromEmail.Text myMessage.To = txtToEmail.TextWhat can I do to fix this?
MailMessage.To represents a collection that you Add addresses to.Dim recipient As MailAddress= new MailAddress(txtToEmail.Text)
myMessage.To.Add(recipient)
Mike Banavige~~~~~~~~~~...
Cast from type ''''DBNull'''' to type ''''String'''' is not valid.
How do I avoid getting this error:
Cast from type ''''DBNull'''' to type ''''String'''' is not valid.
I am trying to get values from the database into a form for updating using a Datareader, SQL is set to allow nulls for certain fields as they are not required but the only way I can get the form to display is by adding a space in SQL.
Is there another way around this?
Check if it is equal to DBNull.Value first and if it is, don't do the cast.Stanley Tan
theSpoke Blog
Where in the code does it need to go?
I am using the following and it's the profile that isn't always requi...
Cannot convert value of parameter 'Course_FK' from 'System.String' to 'System.Guid'
Hi,
I'm building a site and I've been trying to accomplish something similar to what is talked about in "Working with Data in ASP.NET 2.0 :: Declarative Parameters" tutorial.
Below is the code for my methods from the xsd. I tried to attach a screenshot of my xsd but for some reason I'm not allowed
GetAllCourseNames()
SELECT CourseID, NameFROM Course
GetCourseScheduleByCourseID
SELECT ScheduleID, Course_FK, Date, TeeTime, NumberOfPlayersF...
Value of type 'System.Net.Mail.MailMessage' cannot be converted to 'System.Net.Mail.AlternateView'
Trying to create an alternateview to send a txt email with the html formatted email. I've used string builder to create the whole email, but I get this error. Any ideas why? i've bolded the line that throws the error... Dim EmailBodyTxt As New StringBuilder
EmailBodyTxt.Append("<html><style type='text/css'>.table{border:solid; border-color:#006666; width:600;} ")EmailBodyTxt.Append("<body><table class='table'><tr><td colspan='2'><h1>Test<br />RESPONSE SYSTEM</h1></td>...
''''''''''''''''''''Name: haznen
Email: haznenatyahoodotcom
Product: Gran Paradiso Alpha 8
Summary: ''''''''''''''''''''
Comments:
''''''''''''''''''''''''''''''''''''
Browser Details: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20061204 UGES/1.7.2.0 GranParadiso/3.0a1
From URL: http://www.mozilla.org/projects/granparadiso/
Note to readers: Hendrix gives...
Value of type 'System.Data.Dataset' cannot be converted to 'String'
I receive the above error for line 57 which is:
Address.text = Clientinfo(DropDownlist1.Items(DropDownList1.SelectedIndex).text)
I'm trying to take the selected item from the dropdownlist1 and have the data from the query 'Clientinfo' appear using the label control called 'address'. I plan to format it to be used as a mailing address:
123 Street
City, State Zip
Etc.
Obviously I am learning as I go. Can anyone give me an alternative or find my error. Much appreciated. The code is below:
Sub Page_Load(Sender As Object, E As EventArgs)
If Not Page.IsPostBa...
Value of type 'System.IO.DirectoryInfo' cannot be converted to 'String'.
I am uploading documents, and have a basic multiple file upload (from the .NET tutorial) working great. BUT, instead of putting all the files uploaded via the webpage, I want to put them in sub folders. So, I want each file to go in the C:\ directory, in a folder named Uploaded Files, and then, a sub folder with the number of a hiddenfield that is hdn.MatterID... Here's what I tried, but am getting the error, Value of type 'System.IO.DirectoryInfo' cannot be converted to 'String'code behind
Protected Sub btnSubmit_Click(ByVal sen...
System.Net.Mail is giving error CS0029: Cannot implicitly convert type 'string' to 'System.Net.Mail.MailAddress'
I'm getting an error while trying to use the wizard to create a form and than pass it the vaibles to Mail. Any help would be much appreciated.
SmtpClient smtpClient = new SmtpClient();
MailMessage message = new MailMessage();
try
{
message.From = txtEmail.Text;
message.To.Add("admin1@yoursite.com");
message.Subject = "Feedback";
message.CC.Add("admin1@yoursite.com");
message.CC.Add("admin2@yoursite.com");
message.IsBodyHtml = false;
message.Body = txtMessage.Text;
smtpClient.Send(message);
lblStatus.Text = "Email successfully sent.";
}
catch (Exception ex)
{
lbl...
Convert 'System.DBNull' to type 'System.String' ?
I have a textbox on my site that I want to populate with some data, however when the value is null, which is quite often.The problem is that when I call a static method which returns a string; when that string is DBNull, I get the following error which is absolutely correct.Unable to cast object of type 'System.DBNull' to type 'System.String'.So, what should I do to be able to ignore that the string is null and just display a "" string in the texbox?The code is as follows: private void GetCartSmall(string sSessionID) { &n...
'''''Name: mario
Email: ramar17atfastwebnetdotit
Product: Gran Paradiso Alpha 2
Summary: '''''
Comments:
K:
Browser Details: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a2) Gecko/20070206 GranParadiso/3.0a2
...
Object of type 'System.DBNull' cannot be converted to type 'System.String' from formview
I have a formview that I am using for input to my datatable. I am using an objectdatasource that uses a BLL. This in turn points to my XSD tableadapter.
When I test, and only fill in the required fields, I am getting the error Object of type 'System.DBNull' cannot be converted to type 'System.String'
I am not sure what field is having the issue. In my BLL for the Add, I have checked the dates for null and placed the value of DateTime.MinValue. For the text fields, I have place "" if they are null.
Is this error being create prior to...
Error : Value of type 'System.Data.DataTable' cannot be converted to 'String'
Hi,
I have a compilation error : Value of type 'System.Data.DataTable' cannot be converted to 'String'.
I want to erase all the records in my Access database and update it with a DataTable.
My code lines :
Dim conn As OleDbConnection
Dim da As OleDbDataAdapter
Dim ds As DataSet
Dim sql As String
sql = "SELECT * FROM menu;"
conn = New OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source=d:\www\tgc\prof_tech\fsthilaire\parametres_site\parametres_site.mdb" )
da = New OleDbDataAdapter(sql, conn)
conn.Open()
ds = New DataS...
BC30311: Value of type 'System.Data.SqlClient.SqlDataReader' cannot be converted to 'String'.
Does anyone know what the problem is?
Sub Page_Init(sender As Object, e As EventArgs)
Dim txtName As New TextBox()
Dim txtPart As New TextBox()
Dim txtEach As New TextBox()
Dim txtTotal1 As New TextBox()
Dim txtSubtotal As New TextBox()
Dim txtTax As New TextBox()
Dim txtShipping As New TextBox()
Dim txtTotal2 As New TextBox()
Dim prod_id As Integer
Dim id As Integer
id = Request.Querystring("prod_id")
txtName.Text = GetName(id).................this is the problem line
phName.C...
BC30311: Value of type 'System.Data.SqlClient.SqlDataReader' cannot be converted to 'String'.
Hello,
I am developing a page and when I try to call the function GetName(id) to populate the textbox I get the error.
Can anyone explain why I am getting this error?
Thank you in advance.
Sub Page_Load(sender As Object, e As EventArgs)
Dim prod_id As Integer
Dim id As Integer
id = Request.QueryString("prod_id")
Response.Write(id)
Dim txtName As New TextBox()
txtName.Text = GetName(id)
Dim txtPart As New TextBox()
Dim txtEach As New TextBox()
Dim txtTotal1 As New TextBox()
Dim txtSubtotal As New T...