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();
message.From = txtEmail.Text;
message.Subject = "Feedback";
message.IsBodyHtml = false;
message.Body = txtMessage.Text;
lblStatus.Text = "Email successfully sent.";
catch (Exception ex)
lbl...string type property has error in my control!! why?
public class QueryCom : System.Web.UI.WebControls.WebControl,INamingContainer
private String arrayExcept = new String;
DesignerSerializationVisibility (DesignerSerializati...Error Type mismatch for field ,expecting: WideString actual: String
Platform: Delphi XE5 Enterprise
Database: Firebird 2.5
I've a query with a persistent Field.
If execute in Design mode, work ok.
In execution time i received Error Type mismatch for field ,expecting: WideString actual: String .
In conection.params I've add Params.Values['UseUnicode'] := 'False';
Thanks in advance
Alfonso Presa wrote:
> Hello all:
> Platform: Delphi XE5 Enterprise
> Database: Firebird 2.5
> I've a query with a persistent Field.
> If execute in Design mode, work ok.
&g...Custom Control Error: Cannot Create Object of Type Panel From Its String Representation.
I have created a custom control and added a property of type panel to it. In the designer this property shows up as a drop down list with all the panels in the page. When I select a panel, the control disappears with a render error stating that it cannot create object of type panel from its string representation. I can however set the property from code behind by giving the property a reference to the panel, but not from designer.
Hi,You must create a TypeConverter that can convert a string containing a control ID to the corresponding Panel instance.Then you must register...Data type mismatch in criteria expression error when using a DetailsView control in VWD2005 on access DB
I have a Yes/No field in an Access 2000 db that im using to show a simple yes/no checkbox on a web form in VWD2005.
When I click the insert link, Im getting the error "Data type mismatch in criteria expression".
I believe this is because the form is giving ADO.NET true/false instead
of yes or no. Is this correct? And how do I make it so Access will
accept the input from a checkbox in a detailsview control?
Yes you are correct. The check box checked is a boolean value that is 1 if true and 0 if false.
You can hardcode the yes/no in the insert command just pu...Error: Cast from type DBNull to type String is not valid
Hi,I get the following error when I try to convert to string. I know for a fact that the result "UniversityMajor" is empty at this point (null), and that's why I got this error, but I get it even after checking If Not IsDBNull(.UnivMajor)....plz helpThanks,System.InvalidCastException: Cast from type 'DBNull' to type 'String' is not valid.Source Error:
Line 732: With ApplicationPart2
Line 733: If Not IsDBNull(.UnivMajor) Then
Line 734: .UnivMajor = CType(result("UniversityMajor"), String)
Line 735: End If
Line 736: ...Cannot install Toolbox with VS 2005 -error message: Control cannot be created because Visual Studio cannot find the control's type in the control assembly.
I unzipped the toolkit, and followed the instructions on the setup page to add the controls but when I try to create a control (double-clicking the control in the toolbox) I get the error message: Control cannot be created because Visual Studio cannot find the control's type in the control assembly. I have the April release of Atlas. I tried adding the AtlasControlToolkit to the bin folder of my website but that didn't help.
Another user reported this problem but has some steps to resolve it:
Could you try those steps and r...Stored Proc Error: error converting character string to smalldatetime data type
I am trying to create a page that adds users to a MS SQL database. In doing so, I have run into a couple errors that I can't seem to get past. I am hoping that I could get some assistance with them.
Error from SQL Debug:
Server: Msg 295, Level 16, State 3, Procedure AdminAddUser, Line 65
[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting character string to smalldatetime data type.
Error from page execution:
Exception Details: System.Data.OleDb.OleDbException: Error converting data type varchar to numeric.
Line 77...Control and type from string
into an xml file I gat infos fotr loading controls and valid types>>>
now in sted of doing >>>
if ControlType = "TextInteger" then
value = Cint(cType(anyFoundControl, TextInteger).text)
TextInteger is a control inherited from textBox I have TextString, TextFloat , ......
how can I do >>>
convert(ctype(anyFoundControl, ControlType).text), DataType)
The nearest equivalent that comes to my mind is ...How do you to resolve type 'DBNull' to type 'String' is not valid error?
Im reading data from a SQLServer table and some fields are blank.
When my code reads them, I get the following error:
Cast from type 'DBNull' to type 'String' is not valid.
on my command: strDates = oReader("TRA_Dates")
Any idea how to prevent it?
If Not IsDBNull(oReader("TRA_Dates")) Then strDates = oReader("TRA_Dates")
You could also alter the T-SQL to convert nulls to empty strings, but that's really more of a business rule than a data rule....Why am i getting an error runtime error conversion string type "pr_h_reqby" to int
here is my code the falue of pr_h_reqby is "Test"
Dim strconn As New SqlConnection(connstring)
Dim myReqdata As New DataSet
Dim mycommand As SqlDataAdapter
Dim sqlstr As String = "select pr_H_reqby from tbl_pr_header where pr_h_recid = " & recid & ""
mycommand = New SqlDataAdapter(sqlstr, strconn)
If myReqdata.Tables(0).Rows.Count > 0 Then
'lblReqID.Text = myReqdata.Tables(0).Rows("reqid").ToString
lblNameVal.Text = myReqdata.Tables("mydata").Rows("pr_H_reqby").ToString()
lblEmailVal.Text = myReqdata.Tables("mydata").Rows(...Cast from type 'DBNull' to type 'String' is not valid. Error
Can anyone help me with an error I am receiving "Cast from type 'DBNull' to type 'String' is not valid." I am creating an aspx page in VB.NET, please find attached code causing error.objCmd = New SqlCommand("USP_DisplayEmbarkDetails", objConn) objCmd.CommandType = CommandType.StoredProcedure objCmd.Parameters.Add("@BranchID", lblGetBranchID.Text) objConn.Open() objRdr = objCmd.ExecuteReader()
lblBranchName.Text=objRdr("BranchName") lblBranchID.Text=objRd...Bound TextBox error: Conversion from type 'DBNull' to type 'String' is not valid
Hi,I use DataSet designer to generate my strongly typed datasets and to bind my FormView to a Business Layer (BLL). The BLL uses the generated Dataset classes. I have a column in the DB of type string. The column is bound to a textbox like this:Text='<%# Bind("Local") %>' If the column has a value, thingts work well, but When the column has a null value, I get the error: Conversion from type 'DBNull' to type 'String' is not validWhat can I do Please? Thanks a lot, I appreciate your taking the time to help me.
...receive error opening page Conversion from type 'DBNull' to type 'String' is not valid.
I receive the error below when opening up a page with a FormView1 control. The page has a cascading Drop Down List
Error: Exception Details: System.InvalidCastException: Conversion from type 'DBNull' to type 'String' is not valid.
[InvalidCastException: Conversion from type 'DBNull' to type 'String' is not valid.]
Microsoft.VisualBasic.CompilerServices.Conversions.ToString(Object Value) +625
Members_frmStudent.ddlSubSystem_DataBound(Object sender, EventArgs e) +213