Passing parameter to stored procedure in C#

c#, stored-procedures

Solution

you can try this code :

bool result=false;
SqlCommand scCommand = new SqlCommand("usp_CheckEmailMobile", sqlCon);
scCommand.CommandType = CommandType.StoredProcedure;
scCommand.Parameters.Add("@Name", SqlDbType.VarChar, 50).Value = txtName.Text;
scCommand.Parameters.Add("@Email", SqlDbType.NVarChar, 50).Value = txtEmailAddress.Text;
scCommand.Parameters.Add("@Password ", SqlDbType.NVarChar, 50).Value = txtPassword.Text;
scCommand.Parameters.Add("@CountryCode", SqlDbType.VarChar.50).Value =ddlCountryCode.SelectedText;
scCommand.Parameters.Add("@Mobile", SqlDbType.NVarChar, 50).Value = txtMobileNumber.Text;
scCommand.Parameters.Add("@Result ", SqlDbType.Bit).Direction = ParameterDirection.Output;
try
{
    if (scCommand.Connection.State == ConnectionState.Closed)
    {
        scCommand.Connection.Open();
    }
    scCommand.ExecuteNonQuery();
    result = Convert.ToBoolean(scCommand.Parameters["@Result"].Value);


}
catch (Exception)
{

}
finally
{                
    scCommand.Connection.Close();
    Response.Write(result); 
}

Problem

I have a stored procedure that returns a variable `@result` set to 1 or 0 (datatype bit). I am accessing it in my C# with the following code. Its throwing an error saying too many parameters. ``` protected void btnRegister_Click(object sender, EventArgs e) { SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["ConnectionString"]); con.Open(); SqlCommand Cmd = new SqlCommand("usp_CheckEmailMobile", con); Cmd.CommandType = CommandType.StoredProcedure; Cmd.CommandText = "Registration"; Cmd.Parameters.AddWithValue("@Name", txtName.Text); Cmd.Parameters.AddWithValue("@Email", txtEmailAddress.Text); Cmd.Parameters.AddWithValue("@Password", txtPassword.Text); Cmd.Parameters.AddWithValue("@CountryCode", ddlCountryCode.Text); Cmd.Parameters.AddWithValue("@Mobile", txtMobileNumber.Text); //Cmd.Parameters.Add("@Result", DbType.Boolean); SqlParameter sqlParam = new SqlParameter("@Result", DbType.Boolean); //sqlParam.ParameterName = "@Result"; //sqlParam.DbType = DbType.Boolean; sqlParam.Direction = ParameterDirection.Output; Cmd.Parameters.Add(sqlParam); Cmd.ExecuteNonQuery(); con.Close(); Response.Write(Cmd.Parameters["@Result"].Value); } ``` the stored procedure: (this I think is fine...) And please correct my CS code... ``` ALTER PROCEDURE [dbo].[usp_CheckEmailMobile]( @Name VARCHAR(50), @Email NVARCHAR(50), @Password NVARCHAR(50), @CountryCode INT, @Mobile VARCHAR(50), @Result BIT OUTPUT) AS BEGIN IF EXISTS (SELECT COUNT (*) FROM AUser WHERE [Email] = @Email AND [Mobile] = @Mobile) Begin Set @Result=0; --Email &/or Mobile does not exist in database End ELSE Begin --Insert the record & register the user INSERT INTO [AUser] ([Name], [Email], [Password], [CountryCode], [Mobile]) VALUES (@Name, @Email, @Password, @CountryCode, @Mobile) Set @Result=1; End END ```

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