Use sendkeys() for google chrome - C# Discussion Boards

Re: How to make single instance?

RanaSohail1-Dec-09 16:05

RanaSohail

1-Dec-09 16:05

I have done it. Thanks for all Smile | :)

Re: How to make single instance?

Cracked-Down1-Dec-09 7:23

Cracked-Down

1-Dec-09 7:23

Try using Mutex for inter process communication it is best and as easy as needs only 3 lines of code

Smile | :)

Re: How to make single instance?

joelwms1-Dec-09 11:17

joelwms

1-Dec-09 11:17

This article (A Single Instance Application which Minimizes to the System Tray when Closed) has information on making single instance forms in C# using mutex.

object reference not set to instance of an object

uglyeyes1-Dec-09 2:07

uglyeyes

1-Dec-09 2:07

Hi!

I am getting this error when I try to assign a value to a class property called country that is in a class called advert

advert class

public class Advert
{
private Country _country;
  public Country Country
        {
            get { return _country; }
            set { _country = value; }
        }
}

country class
public class Country
    {
        private string _CountryName;
        private string _UrlSafeCountryName;
        private string _CountryCode;

        public Country()
        {
            this.CountryName = "";
            this.CountryCode = "";
            this.UrlSafeCountryName = "";
        }
        

        public string CountryName
        {
            get 
            {
                return _CountryName;
            }
            set
            {
                _CountryName = value;
            }
        }
        
        public string UrlSafeCountryName
        {
            get
            {
                return _UrlSafeCountryName;
            }
            set
            {
                _UrlSafeCountryName = value;
            }
        }

        public string CountryCode
        {
            get
            {
                return _CountryCode;
            }
            set
            {
                _CountryCode = value;
            }
        }
    }

in my DAL where i get error

advert.Country.CountryName = (string)oReader["CountryName"];

not sure if i am doing it correctly? please help

Message Closed

1-Dec-09 2:09

stancrm

1-Dec-09 2:09

Message Closed

modified 23-Nov-14 6:58am.

Re: object reference not set to instance of an object

S. Brozius1-Dec-09 2:16

S. Brozius

1-Dec-09 2:16

and possibly first instantiate advert also (advert = new Advert())

Nah... What's up, Doc?
CCC's solved : 1

Re: object reference not set to instance of an object

Ravi Sant14-Apr-11 1:52

Ravi Sant

14-Apr-11 1:52

private Country _country = new Country();

should solve your issue!

♫ 99 little bugs in the code,
99 bugs in the code
We fix a bug, compile it again
101 little bugs in the code ♫

Use sendkeys() for google chrome

krinaljariwala1-Dec-09 0:44

krinaljariwala

1-Dec-09 0:44

Hello,
i want to open google chrome and then i want to pass keyword say "Codeproject.com".
I have used process class to open chrome, but how do i use sendkeys() to it.

//google search
            Process newprocess = new Process();
            newprocess.StartInfo.FileName = "chrome.exe";
            newprocess.StartInfo.Arguments = "www.google.com";
            newprocess.Start();
            SetForegroundWindow(newprocess.MainWindowHandle);
            SendKeys.SendWait("CodeProject.com");

Please help me its urgent.
Thank you in advance.

Re: Use sendkeys() for google chrome

Ashfield1-Dec-09 2:18

Ashfield

1-Dec-09 2:18

krinaljariwala wrote:
Please help me its urgent.

Not here it isn't.

Have you tried going to google, put your search in and clicking the search button? It puts your search in the url, and you could do the same rather than trying to use the very dodgy method of sendkeys.

Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP

Import old DLL to C# .Net

Reza Shojaee1-Dec-09 0:11

Reza Shojaee

1-Dec-09 0:11

Hi everybody

I have old dll(s) that implemented with Visual Basic 6.0 and Borland Delphi 6.0 and Visual C++ 6.0
I haven't the source of these dlls, So I want to know how can import these dll to C# .Net as a reference.

Best Regards,
Reza Shojaee

Re: Import old DLL to C# .Net

Calla1-Dec-09 0:20

Calla

1-Dec-09 0:20

If it's a COM component you can just add it from the COM tab and let VS create the Interop.

Re: Import old DLL to C# .Net

Reza Shojaee1-Dec-09 0:26

Reza Shojaee

1-Dec-09 0:26

I tried with COM tab but VS doesn't accept it

Best Regards,
Reza Shojaee

Re: Import old DLL to C# .Net

Vimalsoft(Pty) Ltd1-Dec-09 3:48

Vimalsoft(Pty) Ltd

1-Dec-09 3:48

Do you receive some sort or Error ?

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

Re: Import old DLL to C# .Net

Dave Kreskowiak1-Dec-09 4:33

Dave Kreskowiak

1-Dec-09 4:33

Then it's not a COM-based .DLL. You'll have to use P/Invoke to get at the functions it exposes. I hope you have all the documentation on the functions because, if you don't, you're going to find it nearly impossible to call the functions in the .DLL.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Re: Import old DLL to C# .Net

puromtec11-Dec-09 5:25

puromtec1

1-Dec-09 5:25

You need to look up interop services. You can use tlbimp.exe to generate your interop if it is COM (which from the post above seems not to be the case). Otherwise, you can use the DLLImport attribute and reference the functions this way. You will find it tricky to figure out the proper types to use in the function signature, so you need to research a little. But, this is your start.

[DllImport("TheCplusplus.dll")]
static extern uint BTSeparateItems([In, MarshalAs(UnmanagedType.BStr)] string filePath, out object obj);

Call Stored Procedure Using C#

Phil Saville1-Dec-09 0:07

Phil Saville

1-Dec-09 0:07

Hi, im new to using stored procedures and i have the following stored procedure...

CREATE OR REPLACE PROCEDURE DRL_PROCEDURE2(var_SOURCE_OBJECTID IN varchar2, var_NEW_OBJECTID OUT varchar2)
AS
BEGIN
SELECT MAX(NEW_OBJECTID)
INTO var_NEW_OBJECTID
FROM DRL_CONVERSION
WHERE SOURCE_OBJECTID = var_SOURCE_OBJECTID;
END;

I want to be able to call this procedure from my windows form application and display the result of the stored procedure into a label or a datagrid using C#...could someone please help me! Thanks in advance!

Re: Call Stored Procedure Using C#

Ashfield1-Dec-09 0:16

Ashfield

1-Dec-09 0:16

Just google ADO.NET, there are thousands of examples

Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP

Re: Call Stored Procedure Using C#

Vimalsoft(Pty) Ltd1-Dec-09 3:50

Vimalsoft(Pty) Ltd

1-Dec-09 3:50

Coding an N-Tier Application in C# Without Any Wizard: Part II[^]

Re: Call Stored Procedure Using C#

PIEBALDconsult1-Dec-09 4:17

PIEBALDconsult

1-Dec-09 4:17

That's not a procedure; it's just a simple query. I'd pass it to ExecuteScalar, that's what it's for.
As the other person said; read up on ADO.NET.

Re: Call Stored Procedure Using C#

Mark Graham1-Dec-09 5:54

Mark Graham

1-Dec-09 5:54

Here's a helper class I use. It's lightweight but contains a few useful methods. Create a new class in your project and call it 'DbAssist' and copy this code in there. I haven't documented the methods so if you have trouble understanding anything just reply and I will assist. Cheers

using System;
using System.Configuration;
using System.Data;

namespace Common.Data {

    public static class DbAssist {

        private static void CheckConnectionClosed(IDbConnection connection) {
            if (connection.State != ConnectionState.Closed) {
                throw new InvalidOperationException("An error has occurred: connection is not in closed state.");
            }
        }

        // Connection help

        public static string GetConnectionString(string key) {
            try {
                return ConfigurationManager.ConnectionStrings[key].ConnectionString;
            } catch (NullReferenceException ex) {
                throw new ConfigurationErrorsException("An error has occurred: "
                    + key + " does not exist in config.", ex);
            }
        }

        // Scalar help

        public static object ExecScalar(string sqlText, IDbConnection connection) {
            return ExecScalar(sqlText, connection, CommandType.Text);
        }

        public static object ExecScalar(string sqlText, IDbConnection connection, CommandType cmdType) {
            return ExecScalar(sqlText, connection, cmdType, null);
        }

        public static object ExecScalar(string sqlText, IDbConnection connection,
                CommandType cmdType, IDataParameter[] parameters) {
            CheckConnectionClosed(connection);
            using (connection) {
                connection.Open();
                IDbCommand command = connection.CreateCommand();
                command.CommandText = sqlText;
                command.CommandType = CommandType.StoredProcedure;
                if (parameters != null) {
                    foreach (IDataParameter p in parameters) {
                        command.Parameters.Add(p);
                    }
                }
                return command.ExecuteScalar();
            }
        }

        // IDataReader help

        public static IDataReader ExecReader(string sqlText, IDbConnection connection) {
            return ExecReader(sqlText, connection, CommandBehavior.CloseConnection);
        }

        public static IDataReader ExecReader(string sqlText, IDbConnection connection,
            CommandBehavior behavior) {
            return ExecReader(sqlText, connection, CommandType.Text, behavior);
        }

        public static IDataReader ExecReader(string sqlText, IDbConnection connection,
                CommandType cmdType, CommandBehavior behavior) {
            CheckConnectionClosed(connection);
            connection.Open();
            IDbCommand command = connection.CreateCommand();
            command.CommandText = sqlText;
            command.CommandType = cmdType;
            return command.ExecuteReader(behavior);
        }

        public static IDataReader ExecReader(string sqlText, IDbConnection connection,
                CommandType cmdType, IDataParameter[] parameters, CommandBehavior behavior) {
            CheckConnectionClosed(connection);
            IDbCommand command = connection.CreateCommand();
            command.CommandText = sqlText;
            command.CommandType = cmdType;
            if (parameters != null) {
                foreach (IDataParameter p in parameters) {
                    command.Parameters.Add(p);
                }
            }
            return command.ExecuteReader(behavior);
        }

        public static T GetDataFromReader<T>(IDataReader reader, string fieldName, T fallbackValue) {
            int ordinal = reader.GetOrdinal(fieldName);
            if (!reader.IsDBNull(ordinal)) {
                return (T)reader.GetValue(ordinal);
            }
            return fallbackValue;
        }
    }
}

Mark Graham (MCP)
blogging about Design Patterns, C#, Asp.Net, CSS, Javascript and Ajax at: DESIGN CODE TEST [^]

Write DWORD Value in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer on Vista

Sunil G 330-Nov-09 23:17

Sunil G 3

30-Nov-09 23:17

Hi,

I want to Write DWORD Value in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer.

My application writes the value registry only if i run my application as an administrator on vista.

I want on normal exe execution.
and I dont want to disable UAC on vista.

Reply ASAP.

Regars,
Sunil G.

Re: Write DWORD Value in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer on Vista

Saksida Bojan30-Nov-09 23:25

Saksida Bojan

30-Nov-09 23:25

You can atempt to change permision, althou i think UAC will prevent. Other option is to modify your manifest, so that your app runs in admin mode. But everytime you open application, it will pop up UAC confirmation window.

Re: Write DWORD Value in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer on Vista

Sunil G 330-Nov-09 23:44

Sunil G 3

30-Nov-09 23:44

Hi,

I Dont want UAC confirmation window.

Regards,
Sunil G.

Re: Write DWORD Value in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer on Vista

Calla1-Dec-09 0:10

Calla

1-Dec-09 0:10

At install time for your application (because you will be running your app as admin at installation) set the ACL for that specific Registry Entry and allow users to write to it.

This will ge you started:
this [^]

DateTimePicker

Saksida Bojan30-Nov-09 22:11

Saksida Bojan

30-Nov-09 22:11

Hello, I am using date time picker to display month and a year. How can i make calendar not to show days, only Month and a year?

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