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C# MySQL Error “Column count doesn't match value count at row 1”

MySqlCommand cmd1 =
new MySqlCommand(
"INSERT INTO quotedetails (name, address, district, date, forto, refto, total) VALUES('" + txttoname.Text + "', '" + txttoaddress.Text.Replace("\r\n", "<br />").ToString() + "', '" + txtdistrict.Text + "' , '" + dateTimePicker1.Value.Date.ToString("yyyy-MM-dd") +"', '" + txtfor.Text + "', '" + txtref.Text + "', '" + txttotal.Text + "')", conn);
{
Can I get some help please? Im getting Column count doesn't match value count at row 1 when the command1 is executed.

You should never use SQLs like this. It is prone to SQL Injection attacks. When you use it like yours, one can steal confidential information from database or even delete your tables, data etc. For details please read SQL Injection on wiki
Instead you should use parameterized SQL queries. In that way you are safe from injection attacks and I believe it is much more practical to write sql.
In your case entering single ' char into one of the textboxes will cause your query to get exception. To fix the issue just use prameters.
For your case you can write something like that.
string sqlString = #"INSERT INTO quotedetails (
name,
address,
district,
date,
forto,
refto,
total)
VALUES (
#PAR_name,
#PAR_address,
#PAR_district,
#PAR_date,
#PAR_forto,
#PAR_refto,
#PAR_total)";
MySqlCommand cmd1 = new MySqlCommand(sqlString, conn);
cmd1.Parameters.AddWithValue("PAR_name", txttoname.Text);
cmd1.Parameters.AddWithValue("PAR_address", txttoaddress.Text.Replace("\r\n", "<br />"));
cmd1.Parameters.AddWithValue("PAR_district", txtdistrict.Text);
cmd1.Parameters.AddWithValue("PAR_date", dateTimePicker1.Value.Date);
cmd1.Parameters.AddWithValue("PAR_forto", txtfor.Text);
cmd1.Parameters.AddWithValue("PAR_refto", txtref.Text);
cmd1.Parameters.AddWithValue("PAR_total", txttotal.Text);
Please note that I use prefix PAR_ for my sql parameters, it is just a convention you can use that or skip PAR_ prefix does not matter and it is all about naming habits.
Additionaly; in a parameterized query, you don't need to convert all your values to string. You can use DateTime for your date field or you can pass int variable without using ToString() as you do before.

On the face of it, this happens when the number of values are more or less than columns provided.
From your statement, this does not seem to be the case. BUT since you are providing uielements directly into insert statement (Textbook case of SQL Injection), I am guessing there is a single quote ' in any of your ui elements, which breaks your insert statement.

MySqlCommand cmd1 = conn.CreateCommand();
cmd1.CommandText = "INSERT INTO quotedetails (name, address, district, date, forto, refto, total) VALUES('" + txttoname.Text + "', '" + txttoaddress.Text.Replace("\r\n", "<br />").ToString() + "', '" + txtdistrict.Text + "', '" + dateTimePicker1.Value.Date.ToString("yyyy-MM-dd") +"', '" + txtfor.Text + "', '" + txtref.Text + "', '" + txttotal.Text + "')";

Using SQL parameters will save you from lots of trouble as well as SQL injection.I am quite sure that if you use parameters your problem will be resolved:
MySqlCommand cmd1 = new MySqlCommand( "INSERT INTO quotedetails (name, address, district, date, forto, refto, total) VALUES(#name,#address,#district,#date,#forto,#refto,#total)", conn);
cmd1.Parameters.AddWithValue("#name",txttoname.Text);
cmd1.Parameters.AddWithValue("#address",+ txttoaddress.Text.Replace("\r\n", "<br />").ToString());
cmd1.Parameters.AddWithValue("#district",txtdistrict.Text);
...

Syntax error with sql query [closed]

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I have this block of code that executes within my function but it keeps saying there is a syntax error. Am I missing something? Because it seems fine to me
string query3 = "INSERT INTO dbo.Liguanea_Progress VALUES('" + comboBox2.Text + "' '" + textBox5.Text + "' '" + textBox2.Text + "' '" + comboBox3.Text + "''" + textBox3.Text + "''" + comboBox1.Text + "');";

When using insert, always include the column names. So, your query should be INSERT INTO dbo.Liguanea_Progress(col1, col2, . . .).
Never just stuff user input into a query string. Although one reason is that doing so makes the code susceptible to SQL injection, another important reason is that you might introduce syntax errors. Use parameterized queries.
The values in VALUES() should be separated by commas, not spaces.

Your query syntax is invalid. You need to have commas after every paramter.
string query3 = "INSERT INTO dbo.Liguanea_Progress VALUES(#Param1, #Param2,#Param3, #Param4, #Param5, #Param6);
Also start using sql command parameters to protect you from sql injection. Also this gives you clear view on your query.
SqlCommand cmd = new SqlCommand();
cmd.CommandText = query3;
cmd.Parameters.AddWithValue("#Param1", comboBox2.Text);
cmd.Parameters.AddWithValue("#Param2", textBox5.Text);
cmd.Parameters.AddWithValue("#Param3", textBox2.Text);
cmd.Parameters.AddWithValue("#Param4", comboBox3.Text);
cmd.Parameters.AddWithValue("#Param5", textBox3.Text);
cmd.Parameters.AddWithValue("#Param6", comboBox1.Text);

string query3 = "INSERT INTO dbo.Liguanea_Progress(col1) VALUES('" + textBox.Text + "')";
Use this pattern for consequent columns involved and respective values. It is important to declare the columns involved when doing an insert query as well to avoid confusion.
Furthermore, I assume you're using ADO.net judging from this code snippet. You may want to parametize the query to prevent SQL injection like so:
command.Parameters.Add(new SqlParameter("Col1", textBox.Text));
Which now makes your query like this:
string query3 = "INSERT INTO dbo.Liguanea_Progress(col1) VALUES(#Col1)";
This makes the sql code easier to edit.

Missing commas and brackets between your values, try something like this
string query3 = "INSERT INTO dbo.Liguanea_Progress VALUES('" + comboBox2.Text + "'),('" + textBox5.Text + "'),('" + textBox2.Text + "'),('" + comboBox3.Text + "'),('" + textBox3.Text + "'),('" + comboBox1.Text + "');";
You'll need brackets around each value if you're inserting multiple values into the same column. If you're inserting this into one row then you're just missing the commas;
string query3 = "INSERT INTO dbo.Liguanea_Progress VALUES('" + comboBox2.Text + "','" + textBox5.Text + "','" + textBox2.Text + "','" + comboBox3.Text + "','" + textBox3.Text + "','" + comboBox1.Text + "');";

Incorrect syntax in T-SQL statement in c#

I have the following code:
USE [DB] INSERT INTO Extract2_EventLog VALUES (" + li.userId + ", '" + li.startTime.ToString() + "', '" + li.endTime.ToString() + "', '" + li.elapsedTime.ToString() + (li.actionType == ActionType.REPORT ? "', 'report')" : "', 'extract')', '" + status + "'");
When I run this, I get the following error:
{"Incorrect syntax near ', '.\r\nUnclosed quotation mark after the
character string ''."}
I can't see what I'm doing wrong.. Anyone?

Man....Where to start with this...
First off, you should be using stored procedures that accept parameters (variables from your application code). Second, you should have a dataaccess layer in your application separating database calls and your user interface. I can't possible stress enough how important this is and how bad your current approach is. You will forever be fighting problems like this until you correct it.
But to address the question as it was asked...Your error is because your query string is malformatted. Use the debugging tools to view the string before it is sent to the database and then you should be able to quickly determine what is wrong with it. To troubleshoot, you can always cut and paste that string into SSMS, refine it there, and then make the necessary changes to your c# code.

First of all look at the answer of Stan Shaw, next take a look at the comment of Jon Skeet!
The first thing to do is stop building SQL like that... right now. Use parameterized SQL and you may well find the problem just goes away... and you'll be preventing SQL Injection Attacks at the same time.
They sayed everything that's important and just for the sake of giving you a direct answer:
You have a status + "'"); at your code which needs to be changed to status + "')"; ...
...like this one:
string statement = "USE [DB] INSERT INTO Extract2_EventLog VALUES (" + li.userId + ", '" + li.startTime.ToString() + "', '" + li.endTime.ToString() + "', '" + li.elapsedTime.ToString() + (li.actionType == ActionType.REPORT ? "', 'report')" : "', 'extract')', '" + status + "')";

Instead of concatenating values into your query you should use a parameterized query or a stored procedure.
A rewrite of your code could be something like (depending on datatypes, etc):
string commandText = "INSERT INTO Extract2_EventLog (userId, startTime, endTime, elapsedTime, actionType, [status]) VALUES (#userId, #startTime, #endTime, #elapsedTime, #actionType, #status)";
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand command = new SqlCommand(commandText, connection);
command.Parameters.AddWithValue("#userId", li.userId);
command.Parameters.AddWithValue("#startTime", li.startTime);
command.Parameters.AddWithValue("#endTime", li.endTime);
command.Parameters.AddWithValue("#elapsedTime", li.elapsedTime);
command.Parameters.AddWithValue("#actionType", li.actionType == ActionType.REPORT ? "report" : "extract");
command.Parameters.AddWithValue("#status", status);
connection.Open();
int rowsAffected = command.ExecuteNonQuery();
Console.WriteLine("RowsAffected: {0}", rowsAffected);
}

You've forgot the " at the beginning. So your code reverts sql with non sql.
AND your example seems to be incomplete.

Error when trying to insert into MS Access Database

I am developing a program that uses a relational database. In one particular form I am trying to insert new products information into the database.
using System.Data.OleDb;
When I try to save a new product this code runs...
connection.Open();
OleDbCommand command = new OleDbCommand();
command.Connection = connection;
string query = "insert into Products (ProductName,ProductSKU,RP,WP,Stock,FPS,Ammo,MagazineCap,HopUp,Range,Brand,Colour,Action,Features) values('" + txt_ProductName.Text + "','" + txt_SKU.Text + "'," + txt_RP.Text + "," + txt_WP.Text + "," + numericUpDown_Inventory.Value + "," + cobo_FPS.Text + ",'" + cobo_Ammo.Text + "'," + cobo_MagazineCap.Text + ",'" + cobo_HopUp.Text + "'," + cobo_Range.Text + ",'" + cobo_Brand.Text + "','" + cobo_Colour.Text + "','" + cobo_Action.Text + "','" + txt_Features.Text + "')";
//Action field currently causes an error
MessageBox.Show(query);
command.CommandText = query;
command.ExecuteNonQuery();
connection.Close();
...and an error is thrown
"Error System.Data.OleDb.OleDbException (0x80040E14): Syntax error in
INSERT INTO statement."
(and then a bunch of stuff which I don't think is important)
Apologies for the HUGE SQL query. I am using the exact same method of using the insert SQL query in several other places in my program and they all work completely fine. This example however is causing this error. Through the tedious process of "commenting out" individual parts of my SQL query I found that the error lies with the "Action" field. I have checked that the data type in my database is correct and that I am using the '' punctuation to surround the text string that is being inserted into the database.
I think I've checked everything, so why am I still getting this error?
Many thanks in advance and if more information is required just let me know ;)

Action is a reserved keyword in OLE DB Provider. You need to use it with square brackets like [Action]. As a best practice, change it to non-reserved word.
But more impontant
You should always use parameterized queries. This kind of string concatenations are open for SQL Injection attacks.
Also use using statement to dispose your OleDbConnection and OleDbCommand automatically instead of calling .Close() method manually.

String field with single quotation mark is causing an error when inserting record in table

I have below code:
query = "insert into tblB2B_OrderStatusTopStillInRB (LSRNbr, ShipName, Units, DroppedInRB, EPT, Status, OnTimeStatus, ShipVia, DroppedInRB_Order, RealEPT) ";
query += "values ('"
+ ListOrdStatusTopInRB[i].LSRNbr + "','"
+ ListOrdStatusTopInRB[i].ShipName + "',"
+ ListOrdStatusTopInRB[i].Units + ",'"
+ ListOrdStatusTopInRB[i].DroppedInRB + "','"
+ ListOrdStatusTopInRB[i].EPT + "','"
+ ListOrdStatusTopInRB[i].Status + "','"
+ ListOrdStatusTopInRB[i].OnTimeStatus + "','"
+ ListOrdStatusTopInRB[i].ShipVia + "','"
+ ListOrdStatusTopInRB[i].DroppedInRB_Order + "','"
+ ListOrdStatusTopInRB[i].RealEPT + "')";
cmd.CommandText = query;
cmd.ExecuteNonQuery();
And I just realized, that when the ShipName has a value with a single quotation mark, is causing an error in the insert statement, for instance: int'l Transp.
Is there any way to fix that, without removing the single quotation mark from the string?
I was trying using the following but didn't work:
cmd.CommandText = #query
+ #ListOrdStatusTopInRB[i].ShipName + "',"
Any ideas?

Is there any way to fix that, without removing the single quotation mark from the string?
Yes - use parameterized SQL instead. You should never use variable values directly in your SQL like this. It can allow SQL injection attacks, cause conversion oddities, and generally make the SQL more confusing to read.
See the documentation for SqlCommand.Parameters for an example of parameterized SQL.
Basically, the idea is that your SQL includes references to parameters, e.g.
INSERT INTO SomeTable(Foo, Bar) VALUES (#Foo, #Bar)
and then you specify the values for #Foo and #Bar separately. The values then aren't part of the SQL itself, so it doesn't matter whether or not they contain characters which would have special meaning within the SQL.