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...
Fileupload + ObjectDataSource Parameter Error: Cannot implicitly convert type 'byte[]' to 'string'
Hi,
Problem to upload a image to database with FileUpload control + ObjectDataSource. The error is: Error 2 Cannot implicitly convert type 'byte[]' to 'string'
My code in the default.aspx as below:
<tr>
<td style="width: 104px">
Image:</td>
<td>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:ObjectDataSource ID="ods_Table1" runat="server" DataObjectTypeName="System.Byte[]"
OldValuesParameterFormatString="{0}" SelectMethod="GetTab...
Sporadic 'Invalid length for a Base-64 char array', 'Invalid character in a Base-64 string' & 'Unable to validate data' errors on Windows 2008 Server (web garden)
Hello,We are running a fast growing social networking site written in ASP.NET and have recently updated our web server from Windows 2003 to 2008 version. With that move we started to see a large amount of certain errors to come in on number of pages. The errors are described on the very bottom of my post. At this point we have only one server running IIS7 running a web garden of 4 worker processes. They recycle once a day, at night. The site is using a StateServer running on the local box with the following setting in the web.config file:<sessionState mode="StateServer" stateCon...
SqlDataSource.Select Error: Unable to cast object of type 'System.Data.DataView' to type 'System.String'.
I am trying to use the select statement to put a field from my database using a SqlDataSource named 'FileBase.' I am using the following code: FileBase.SelectCommand = "SELECT Username FROM Files WHERE Filename = '" & myFileInfo.FullName & "'" myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments()), String)But when I run the code I get the following error:Server Error in '/YorZap' Application. Unable to cast object of type 'System.Data.DataView' to type 'System.String'. Description:...
SqlDataSource.Select Error: Unable to cast object of type 'System.Data.DataView' to type 'System.String'.
I am trying to put the data from a field in my database into a row in a table using the SQLDataSource.Select statement. I am using the following code: FileBase.SelectCommand = "SELECT Username FROM Files WHERE Filename = '" & myFileInfo.FullName & "'" myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments()), String)But when I run the code, I get the following error:Server Error in '/YorZap' Application. Unable to cast object of type 'System.Data.DataView' to type 'System.String'. Descri...
Ajax slideshow error: The server method 'GetSlides' failed with the following error: System.Data.SqlClient.SqlException--incorrect syntax near ')'.
Hello there,
I am new to asp.net and ajax. I have been working non-stop trying to figure out what leads to the following error on my slideshow page:
The server method 'GetSlides' failed with the following error: System.Data.SqlClient.SqlException--incorrect syntax near ')'.
My code is as follows:
Imports System.Data
Imports System.Data.Sql
Imports System.Data.SqlClientPartial Class ProjectInherits System.Web.UI.Page
<System.Web.Services.WebMethod()> _
<System.Web.Script.Services.ScriptMethod()> _Public Shared Function GetSlides() As AjaxControlTo...
'System.String' to 'System.DateTime' error
Hi,
I have a Gridview with templates and i set the format to
Text='<%# Eval("PrescriptionDate", "{0:dd/MM/yyyy}") %>'
The objectDataSource:
<asp:ObjectDataSource DeleteMethod="DeletePrescriptionDetails"
InsertMethod="InsertPrescriptionDetails" ID="objDetails"
runat="server" SelectMethod="GetAllPrescriptionDetails" UpdateMethod="UpdatePrescriptionDetails" TypeName="GridViewClasses">
<UpdateParameters>
<asp:Parameter Name="PrescriptionId" Type="Int32" />
<asp:Parameter Name="MedicineId" Type="Int32" />
<asp:Parameter Name="ActualDose" Type="I...
Error 39 'System.Data.DataRow' does not contain a definition for 'Item'
for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++) { categoryID = ds.Tables[0].Rows[i].Item["categoryID"]; name = ds.Tables[0].Rows[i].Item["name"]; string catID = Convert.ToString(categoryID); ///Change made by me ddlCategory.Items.Add(new ListItem(name, catID)); qry = "Select count(categoryID) from categories where active = 'True' AND parentID=" + categoryID + ""; countCategories = objDB.getScalar(qry);
i get this errorIf the going seems easy, You are going DownHill...
I've got the solution
what you have to ...
Error: foreach statement cannot operate on variables of type 'System.Data.DataSet' because 'System.Data.DataSet' does not contain a definition for 'GetEnumerator', or it is inaccessible
I am getting error on this line
DataSet dsdata=new DataSet();
SQL="Seelct * from tablename";
//dsdata contains result of the above query
foreach(DataRow dr in dsdata) //This line gives error
Error: foreach statement cannot operate on variables of type 'System.Data.DataSet' because 'System.Data.DataSet' does not contain a definition for 'GetEnumerator', or it is inaccessible
DataSet dsdata=new DataSet();
SQL="Select * from tablename";
//dsdata contains result of the above query
foreach(DataRow dr in dsdata.Tables[0].Rows) //This ...
error in ''%'' operator
hi... friends
i got this error (Syntax error: Missing operand after ''%'' operator)below statement.
dtBtnScr.DefaultView.RowFilter = "LOCATION_CITY'" + txtCity.Text.Trim() + "%'AND LOCATION_STATE '" + ddlState.SelectedValue + "%'AND UNIT_ID'" + txtUnitCode + "%'AND UNIT_NAME '" + txtUnitName.Text.Trim() + "%'";
thnax friends
It thinks you are trying to use the modulo operator: %.
Look at the RowFilter string after you build it ...you should see the prob...
Error 60 Operator '&' is not defined for types 'System.Web.UI.WebControls.TextBox' and 'String'.
The comment control is a textbox:<td align="right" style="width: 228px"><asp:TextBox ID="comment" runat="server" TextMode="multiLine" Rows="10" Columns="50" onkeyup="return ismaxlength(this)" Width="260px" Height="100px" Font-Overline="false" /></td>
and I'm being told by VS (underlined in blue ) that the for the comment field:
Error 60 Operator '&' is not defined for types 'System.Web.UI.WebControls.TextBox' and 'String...
Cast from type 'DBNull' to type 'String' is not valid. Error
Hi,
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()
While objRdr.Read
lblBranchName.Text=objRdr("BranchName") lblBranchID.Text=objRd...
Error--Procedure 'SP_Insert_NewPipeLine' expects parameter '@CompanyId', which was not supplied.
Can any body help me in solving this problem.
First I use to get Error which reads "Object Must Implement Iconvertible"
After using the overloaded Sp.paramerers.add() function It started giving this problem.
I am giving the sample code.
ConObject = new SqlConnection(ConString);
ConObject.Open();
string SpString ="dbo.SP_Insert_NewPipeLine";
SqlCommand CmdObject = new SqlCommand(SpString,ConObject);
CmdObject.CommandType = CommandType.StoredProcedure;
CmdObject.Parameters.Add("@RequestTypeId",SqlDbType.Int,4,"0");
//CmdObject.Parameters["@RequestTypeId"].Value= 0;
CmdObject.Parame...
mobilink error:user 'dba' has the row in 'table_name' locked.when i run my pocketbuilder application in my pc,synchronization is ok, but
when i deploy my application on my ipaq, sychronizaion sometimes is
ok,sometimes failed. when failed, the message in synchronization windows is:
"begin synchronization user:user1
pub names:napi
E. 10/17 21:11:02. SQL statement failed:(-210) User 'DBA' has the row in
'table_name1' locked.
end Synchronizaion error 1."
by the way,i use 'dba' to connect my adaptive server
i read the explains of the Error Message,is says :the probable cause is 'You
attempted to read...