I know there are about a million posts on this topic, and I have attempeted to use many of them. However, I keep getting an error when I attempt a simple SQL update. Here is my code:
[Code]....
Here is my error:
[Code]....
I am trying to get the 'userid' of the logged in user using the code below:
"MembershipUser myObject = Membership.GetUser();
String userId = myObject.ProviderUserKey.ToString();"
and later using it as a parameter to the stored procedure.
The logic here is, the user should login first in order to retrieve his/her album. when the user is logged in, im retrieving the 'userid' and using it as parameter to load the corresponding album from the database.
when i login and open the albumpage, im end up with this exception:
"Failed to convert parameter value from a String to a Guid".
What could be the reason and how can i avoid this exception.
by the way im using the aspnet_Users table's userid field.
I have a problem while creating a web application using LinqTemplate here is the explanation step wise....
1.I have created a database with a table name UserTest with one column name UserId with uniqidentifier datatype2. I have created a classLiberary Project where i have used LinqTemplate of subsonic for code Generation of DAL and created a partial class for UserTest
public partial class TestUser:Classes
{
public int Insert(TestUser user)
[code]...
Now when I Build the project it build successfully and when i run the project it shows
the UserTest.aspx page with a button but when i click on button it must insert the new guid value into the table butit throws an exception
[InvalidCastException: Object must implement IConvertible.]
System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) +2560525
System.Data.SqlClient.SqlParameter.CoerceValue(Object value, MetaType destinationType) +414
[InvalidCastException: Failed to convert parameter value from a Guid to a String.]
TestPages.UserEdit.btnCreateNewAccount_Click(Object sender, EventArgs e) in D:TestPagesUserEdit.aspx.cs:61
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
I am trying to get the UserRole from the logged in user and send it to the database table my code is:
[Code]....
I have a column in my gridview titled Progress. The data is currently consisting of integer values such as 1, 2, and 3. How can I change them to say "Good", "Review", and "Redo" based on their value?
View 4 RepliesI have a GridView where the user can choose an occasion, and I want to show the occasion date in a calendar. How should I convert the date string from the GridView? The code below works except for the rows concerning Date and calendar:
[Code]....
I've been successful in creating GridView controls programically using c#. I'd like to take advantage of using the clientmode=predicatable but I can't resolve setting the ClientIDRowSuffix value. Below is a code snippet:
public void GenerateView(int fileno, string GridType, GridView dataView)
{
object ctrl = FindControl("pnlForm");
System.Web.UI.WebControls.Panel ctrlPanel = (System.Web.UI.WebControls.Panel)ctrl;
dataView.Width = 640;
dataView.ForeColor = System.Drawing.Color.Black;
dataView.BackColor = System.Drawing.Color.Beige;
dataView.AutoGenerateColumns = false;
dataView.Caption = "<B> indicate your selection by typing Add of Delete in the Action box below</B>";
//Resulted in the following error
// Cannot implicitly convert type 'string' to 'string[]
// dataView.ClientIDRowSuffix = "CTR_SEQ";
// I also tried casting it
// CS0030: Cannot convert type 'string' to 'string[]'...........................................
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="LabelSubUpdateID" runat="server" Text='<%# Eval("UpdateID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
Get the Label value inside the Gridview ItemTemplate and convert to string C#?
[Code]....
Forms Data Controls :: Failed to convert parameter value from a DataControlFieldCell to a String - GridView Error?
[WebMethod]
public String AuthenticateUser(String username, String password)
{
con.ConnectionString = ConfigurationManager.ConnectionStrings["cn"].ConnectionString;
if (con.State == ConnectionState.Closed)
{
con.Open();
}
[code]...
Also how will i write the code on the page where i am reading the returned value from this webservice?
how would one go about converting a string to an SQL time data type? Lets say i wanted to convert @param1 to SQL time and @param2 to SQL date.
[Code]....
I am attempting to use SqlBulkCopy to import data from an XML document. I receive the following error when executing WriteToServer: Invalid cast from 'System.String' to 'System.Guid'
View 1 RepliesI have a products table with 3 fields name, price and quantity, I need to fill a datatable with those 3 fields and using a foreach build a chain. I build my chain currently using a datagrid with my following code
this code work good.
string item_name;
string amount;
string quantity;
[Code]....
but I like to form my chain directly from datatable, not rely on a datagrid.
I´m trying to use session to store a value (id). The problem is that I have to store it as a string. When trying to use the instance of the id I get the error:
Exception Details: System.InvalidCastException: Specified cast is not valid.
Source Error:
Line 156:
Line 157: Nemanet_Navigation newFile = new Nemanet_Navigation();
Line 158: newFile.Nav_pID = (Guid)Session["id"];
Line 159:
Line 160:
This is where I get the id and that seems to work fine. Session["id"] gets the value.
[code].....
[Code]....
Column UserId = uniqueidentifier
Compilation Error
Description:
An error occurred during the compilation of a resource required to service
this request. Please review the following specific error details and modify your
source code appropriately. Compiler Error Message: CS0019:
Operator '==' cannot be applied to operands of type 'string' and
'System.Guid'Source Error:
[Code]....
Line 93:
Line 94: var creditcard = from c in db.tbl_Payments
Line 95: where UserID == c.UserId
Line 96: select c;
Line 97:
I am getting error "Cannot implicitly convert type 'string' to 'System.Data.DbType".
When I am passing Stored procedure parameter it expets 'System.Data.DbType" and the Data member is declared as a string.
I am sitting with a situation where i have a Method that that i want to put into a Class because i am calling it from various forms.
The method in this case loads a dropdown list. Currently i am stuck where i have to load the list into the DropDown Control on the form. I dont seem to get the control on the form. So far my code looks something like this This does not seem to work. I keep getting this error...
Error 3 Argument '1': cannot convert from 'string' to 'int'
The detailsview is used for logged users to add a new item to a table in my sql database. The detailsview default mode is set to "insert".
The UserID is a field in the table in which the user enter the new record.
How can I get the UserID Guid value assigned automatically on pageload to the specific bound field in my detailsview
i have an string data array which contains data like this
5~kiran
2~ram
1~arun
6~rohan
now a method returns an value like string [] data public string [] names()
{
return data.Toarray()
}
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
)
List<Person> persons = new List<Person>();
string [] names =names();
now i need to copy all the data from an string array to an list<person> and finally bind to grid view
gridview.datasource= persons
how can i do it?
Loading data from CSV file from the following code.I need to get out values to UTF-8.How can I do?
[Code]....
Datecol is a datetime in a sql table.
q="select convert(char(8),datecol1,112) from tblone where datecol2 is null"
is what I use for my query string for sqlcommand(). I'm getting the error "a field or property datecol1 could not be found in the datasource". Without the convert, the query is ok.
Convert records into one string
View 3 Replies.aspx
[Code]....
And then when I save....cs
[Code]....
And Stored Procedure is like this
[Code]....
the problem is when I use debugging mode, I mean using with visual studio, it's going fine. But when I call from IIS there has a error.. Unterminated string constant. I know where is the problem
[Code]....
on VWD 2005 this code works fine, but on 2008 it says I haven't created an instance of the object. I want to convert the object connString (a connection string) into a string.
'This acceses the virtual directory web.config file for connection strings
'We have to convert the object to a connection string
Dim rootWebConfig As System.Configuration.Configuration
rootWebConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/VirtualDirec")
Dim connString
As System.Configuration.ConnectionStringSettings
connString = rootWebConfig.ConnectionStrings.ConnectionStrings("ConnectString1")
Dim strConnString
As
String = connString.ToString().......
I'm trying to have an asp.net custom control with a field like:
<ErrorTemplate>
<h1>Error</h1>
<p>Blue wizard shot the food</p>
</ErrorTemplate>
What I want to end up with is:
<h1>Error</h1><p>Blue wizard shot the food</p> in a string in my codebehind.
At the moment, the process I use to get this data out of the template is:
First this gets instantiated into a placeholder by my code:
ErrorTemplate.InstantiateIn(errorPHolder);
which is an asp.net placeholder control - it has to be instantiated into something which can support controls.
What I then want to do is add this to my page using JQuery and a variable, like this:
string script = "var Errortemplate = " + errorPHolder.ToString() + ";";
scriptmanager.register(script); // pseudocode
so the result would be, on my page:
var Errortemplate = '<h1>Error</h1><p>Blue wizard shot the food</p>';
Then I can use JQuery to do someDiv.html(Errortemplate);
Finally resulting in whatever they put in <ErrorTemplate> appearing on the page
Because I'm using JQuery it might be possible to do this a different way, such as adding the placeholder to the page into a hidden div and using JQuery to copy the values out.