I have a text box named recordID
I have declared a variable called ID by using the following:
int ID = Convert.ToInt32(recordID.Text);
Finally, I have some code which refreshes a gridview after a button has been clicked which works perfectly, but, brings back everything in the table:
using (SqlDataAdapter a = new SqlDataAdapter("SELECT * FROM TEST_TABLE", conn))
{
// Use DataAdapter to fill DataTable
DataTable t = new DataTable();
a.Fill(t);
// Render data onto the screen
gridSelectID.DataSource = t;
}
I need this to be altered wherby the query is changed so that it adds a where and filters it on the value of the ID mentioned above (taken from recordID.Text which is a text box)
I have tried this:
using (SqlDataAdapter a = new SqlDataAdapter("SELECT * FROM TEST_TABLE WHERE ID = filter", conn))
{
int filter = ID;
// Use DataAdapter to fill DataTable
DataTable t = new DataTable();
a.Fill(t);
// Render data onto the screen
gridSelectID.DataSource = t;
}
But it complains with Invalid Column name 'filter'
I need this to filter the query by the ID which is declared at the top of the code.
You can't automatically bind variables to your command. You need to do it manually, like:
using (SqlDataAdapter a = new SqlDataAdapter("SELECT * FROM TEST_TABLE WHERE ID = #filter", conn))
{
int filter = ID;
a.SelectCommand.Parameters.AddWithValue("#filter", filter);
using (SqlDataAdapter a = new SqlDataAdapter(string.Format("SELECT * FROM TEST_TABLE WHERE ID = '{0}'",ID), conn)) {
// Use DataAdapter to fill DataTable
DataTable t = new DataTable();
a.Fill(t);
// Render data onto the screen
gridSelectID.DataSource = t;
}
Related
I have created a search function that returns product data in a DataGridView (data is coming from local database), it does work but I need to have control over returned data in my grid view.
Current behavior
It returns all columns of database row in DataGridView
What I want
Returning only 2 or 3 columns of searched item instead of all columns
Create new list of searched items so I can edit those returned data
Logic
Search for product
Get product name and price from database, add custom quantity field make new list and add this item to show in DataGridView
Be able to change quantity field in DataGridView
Code
Here is my search code that returns all columns of product table
using (SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["SampleDatabaseWalkthrough.Properties.Settings.SampleDatabaseConnectionString"].ConnectionString))
{
if (cn.State == ConnectionState.Closed)
cn.Open();
using (DataTable dt = new DataTable("Products"))
{
using (SqlCommand cmd = new SqlCommand("select * from Products where Id=#Id or Name like #Name", cn))
{
cmd.Parameters.AddWithValue("Id", searchBox.Text);
cmd.Parameters.AddWithValue("Name", string.Format("%{0}%", searchBox.Text));
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
adapter.Fill(dt);
// Following line will show all columns of founded product and replace it with next search result
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
selectedItems.DataSource = dt;
}
}
}
PS: Code above finds products based on id or name entered in search field and return all columns of product row.
Idea:
I think I can be able to create my list after finding product but the issue I'm facing is that I'm not sure how to get those specific columns from my dt (table row),
Here is what I've tried and failed (commented)
using (SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["SampleDatabaseWalkthrough.Properties.Settings.SampleDatabaseConnectionString"].ConnectionString))
{
if (cn.State == ConnectionState.Closed)
cn.Open();
using (DataTable dt = new DataTable("Products"))
{
using (SqlCommand cmd = new SqlCommand("select * from Products where Id=#Id or Name like #Name", cn))
{
cmd.Parameters.AddWithValue("Id", searchBox.Text);
cmd.Parameters.AddWithValue("Name", string.Format("%{0}%", searchBox.Text));
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
adapter.Fill(dt);
//selectedItems.DataSource = dt; //<-- changed with lines below
List<string> items = new List<string>();
items.Add(dt); // <-- here is the issue (it expect to get string of my table row let say: Price column, but I don't know how to get Price column value from dt)
selectedItems.DataSource = items;
}
}
}
PS: code above is just idea and obviously I am not sure if it is best way to do it or not that's why I'm asking here :)
Any suggestions?
Update
I've created new class and added my data to that class as following
public class Item
{
public int Id { get; set; }
public string Name { get; set; }
public string Price { get; set; }
public string Qty { get; set; }
}
Then in my query I added
List<Item> itemList = new List<Item>();
for (int i = 0; i < dt.Rows.Count; i++)
{
Item item = new Item();
item.Id = Convert.ToInt32(dt.Rows[i]["Id"]);
item.Name = dt.Rows[i]["Name"].ToString();
item.Price = dt.Rows[i]["SellPrice"].ToString();
item.Qty = dt.Rows[i]["Qty"].ToString();
itemList.Add(item);
}
selectedItems.DataSource = itemList;
Now it does return data in my selectedItems but when I search for next product instead of adding it to the list it replace it with first product.
According to your sql query you are selecting all columns of the table.
To get the specific columns please change your sql query as such:
SqlCommand cmd = new SqlCommand("select Products.id, Products.name from Products where Id=#Id or Name like #Name", cn);
Thank you.
As per my understanding based on the comments, you are looking for some Linq code.
You only need to convert your result to a list that you could use.
Here is some code that might help you achieve this.
var result = dt.AsEnumerable().Select(x=> new {
Id = x["Id"],
Name = x["Name"],
Quantity = {Your Logic here}
});
selectedItems.DataSource = result;
You can then assign result to your datasource. You did not specify what your datasource is assigned to (selectedItems) so I do not know what type it is. but this should theoretically work. Just remove Quantity = {Your Logic here} from the code and see if it display's after which you could then just add it back and populate what you want Quantity to be
UPDATE
Because selectedItems is a DataGridView it requires a DataTable object to display the data. In which case you can not use an anonymous list as I created you would need something like this.
DataTable dtResult = new DataTable();
dtResult.Columns.Add("Id");
dtResult.Columns.Add("Name");
dtResult.Columns.Add("Quantity");
var result = dt.AsEnumerable().Select(x=> dtResult.Rows.Add(x["Id"],
x["Name"],
{Your Logic for Quantity here}
));
selectedItems.DataSource = result;
If you want to test this solution you can create a console application in c# and do something like where you can see the datasource is correct.
You could refer to the following code to show specific column data from database in winform datagirdview.
private void button1_Click(object sender, EventArgs e)
{
string str = "str";
SqlConnection connection = new SqlConnection(str);
connection.Open();
string sql = "select * from Product where Id=#Id or Name like #Name";
SqlCommand command = new SqlCommand(sql,connection);
command.Parameters.AddWithValue("#Id", textBox1.Text);
command.Parameters.AddWithValue("#Name", string.Format("%{0}%", textBox1.Text));
SqlDataAdapter adapter = new SqlDataAdapter(command);
DataTable table = new DataTable();
adapter.Fill(table);
var dt = from t in table.AsEnumerable()
select new
{
//Name=t.Field<string>("Name"), //The same way to show other columns data
Price = t.Field<string>("Price")
};
dataGridView1.DataSource = dt.ToList();
}
Result:
Database:
Whenever I click on a name in EmployeeRank1 List listbox I want to get in the EmployeeRank1Information listbox associated data from the table for it. However, I get an exception instead. Screenshots and code used provided below.
Table
WPF Window
Exception
Code I have used
private void employeeRank1List_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if(employeeRank1List.SelectedValue != null)
{
// use a try-catch, in case we run into an
// error while digging into the database
try
{
// create a query and select everything from "EmployeeRank1" table
// except the Password and GenericPassword columns
string query = "select * from EmployeeRank1 where Name = #name AND Salary = #salary AND Responsibility = #responsibility AND Position = #position AND Age = #age AND YearsInCompany = #yearsInCompany";
// Create an SqlCommand and connect to the database
SqlCommand sqlCommand = new SqlCommand(query, sqlConnection);
// create a connection to the database and run sqlCommand
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(sqlCommand);
// use the sqlDataAdapter
using (sqlDataAdapter)
{
// add a value to the EmployeesRank1 Information table, once an item in the EmployeesRank1 table is clicked
sqlCommand.Parameters.AddWithValue("#name", employeeRank1List.SelectedValue);
// create a new data table that allows us
// to store data from tables within objects
DataTable employeeRank1InformationTable = new DataTable();
// fill the sqlDataAdapter with all the
// information from the query(from the EmployeeRank1 table)
sqlDataAdapter.Fill(employeeRank1InformationTable);
// set the content of the employeeRank1List
// to be the content from each column in the table
employeeRank1Information.DisplayMemberPath = "Salary";
employeeRank1Information.DisplayMemberPath = "Position";
employeeRank1Information.DisplayMemberPath = "Responsibility";
employeeRank1Information.DisplayMemberPath = "Age";
employeeRank1Information.DisplayMemberPath = "YearsInCompany";
employeeRank1Information.SelectedValuePath = "Id";
employeeRank1Information.ItemsSource = employeeRank1InformationTable.DefaultView;
}
}
catch (Exception exception)
{
// show what is the error
MessageBox.Show(exception.ToString());
}
}
}
You could just pass Id into the query, as that is the primary key of Employee
private void employeeRank1List_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if(employeeRank1List.SelectedValue == null) // less nesting to flip the condition
return;
try
{
// only select the columns you need
const string query = #"
select
Id,
Name,
Salary,
Position,
Responsibility,
Age,
YearsInCompany
from EmployeeRank1 e
where e.Id = #id
";
// always use a new connection and dispose it
using (SqlConnection sqlConnection = new SqlConnection(yourConnectionString))
// Create an SqlCommand and connect to the database
using (SqlCommand sqlCommand = new SqlCommand(query, sqlConnection);
{
// always specify parameter type (and length for strings)
sqlCommand.Parameters.Add("#id", SqlDbType.Int).Value = ((DataRow)employeeRank1List.SelectedValue)["Id"];
// how do you get the Id column??
DataTable employeeRank1InformationTable = new DataTable();
conn.Open();
using (SqlDataReader reader = sqlCommand.ExecuteReader())
{
employeeRank1InformationTable.Load(reader);
}
} // close connection as quick as you can
// you can only set one column to display
employeeRank1Information.DisplayMemberPath = "Name";
employeeRank1Information.SelectedValuePath = "Id";
employeeRank1Information.ItemsSource = employeeRank1InformationTable.DefaultView;
}
catch (Exception exception)
{
// show what is the error
MessageBox.Show(exception.Message);
}
}
You have declared where conditions for these without value
AND Salary = #salary AND
Responsibility = #responsibility AND
Position = #position AND
Age = #age AND
YearsInCompany = #yearsInCompany
You need to Fille them before executing the query
sqlCommand.Parameters.AddWithValue("#Salary", <VALUE FROM TABLE>);
Since you have not specified how you fill the gridview or table,
you need to get the following values yourself
Your SQL query contains 6 Conditions.
select * from EmployeeRank1 where Name = #name AND Salary = #salary AND Responsibility = #responsibility AND Position = #position AND Age = #age AND YearsInCompany = #yearsInCompany.
but you have only filled one using -
sqlCommand.Parameters.AddWithValue("#name", employeeRank1List.SelectedValue);
so basically the query is equal to this when clicking on a list item
select * from EmployeeRank1 where Name = <LitsView Item>
AND Salary = UNDEFINED
AND Responsibility = UNDEFINED
AND Position = UNDEFINED
AND Age = UNDEFINED
AND YearsInCompany = UNDEFINED;
now UNDEFINED here makes it a SQL syntax error since the scalar variables are missing. to get it to work, here is a workaround for you to understand how it works-
change this line in your code
string query = "select * from EmployeeRank1 where Name = #name AND Salary = #salary AND Responsibility = #responsibility AND Position = #position AND Age = #age AND YearsInCompany = #yearsInCompany";
to this
string query = "select * from EmployeeRank1 where Id = #name";
after you try this it should work with inaccurate results. to make it work properly fill the rest of the where conditions in your SQL code
Also, use a primary/unique key to locate records instead of using #NAME
I managed to make it work by having multiple listboxes instead of one. Moreover, in the query I selected the id only, which is the primary key and then added multiple try-catch blocks in order to fill those listboxes that I had created. A screenshot of the working program, as well as the code
Program
Code
// a method that shows information for employees that are rank 1
private void ShowEmployeeRank1Information()
{
// use a try-catch, in case we run into an
// error while digging into the database
try
{
// create a query and select everything from "EmployeeRank1" table
// except the Password and GenericPassword columns
string query = "select * from EmployeeRank1 where Id = #id";
// Create an SqlCommand and connect to the database
SqlCommand sqlCommand = new SqlCommand(query, sqlConnection);
// create a connection to the database and run sqlCommand
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(sqlCommand);
// use the sqlDataAdapter
using (sqlDataAdapter)
{
// add a value to the EmployeesRank1 Information table, once an item in the EmployeesRank1 table is clicked
sqlCommand.Parameters.AddWithValue("#id", employeeRank1List.SelectedValue);
// create a new data table that allows us
// to store data from tables within objects
DataTable employeeRank1PositionTable = new DataTable();
// fill the sqlDataAdapter with all the
// information from the query(from the EmployeeRank1 table)
sqlDataAdapter.Fill(employeeRank1PositionTable);
// set the content of the employeeRank1List
// to be the content from each column in the table
employeeRank1PositionList.DisplayMemberPath = "Position";
employeeRank1PositionList.SelectedValuePath = "Id";
employeeRank1PositionList.ItemsSource = employeeRank1PositionTable.DefaultView;
}
}
catch (Exception e)
{
// show what is the error
MessageBox.Show(e.ToString());
}
try
{
// create a query and select everything from "EmployeeRank1" table
// except the Password and GenericPassword columns
string query = "select * from EmployeeRank1 where Id = #id";
// Create an SqlCommand and connect to the database
SqlCommand sqlCommand = new SqlCommand(query, sqlConnection);
// create a connection to the database and run sqlCommand
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(sqlCommand);
// use the sqlDataAdapter
using (sqlDataAdapter)
{
// add a value to the EmployeesRank1 Information table, once an item in the EmployeesRank1 table is clicked
sqlCommand.Parameters.AddWithValue("#id", employeeRank1List.SelectedValue);
// create a new data table that allows us
// to store data from tables within objects
DataTable employeeRank1AgeTable = new DataTable();
// fill the sqlDataAdapter with all the
// information from the query(from the EmployeeRank1 table)
sqlDataAdapter.Fill(employeeRank1AgeTable);
// set the content of the employeeRank1List
// to be the content from each column in the table
employeeRank1AgeList.DisplayMemberPath = "Age";
employeeRank1AgeList.SelectedValuePath = "Id";
employeeRank1AgeList.ItemsSource = employeeRank1AgeTable.DefaultView;
}
}
catch (Exception e)
{
// show what is the error
MessageBox.Show(e.ToString());
}
try
{
// create a query and select everything from "EmployeeRank1" table
// except the Password and GenericPassword columns
string query = "select * from EmployeeRank1 where Id = #id";
// Create an SqlCommand and connect to the database
SqlCommand sqlCommand = new SqlCommand(query, sqlConnection);
// create a connection to the database and run sqlCommand
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(sqlCommand);
// use the sqlDataAdapter
using (sqlDataAdapter)
{
// add a value to the EmployeesRank1 Information table, once an item in the EmployeesRank1 table is clicked
sqlCommand.Parameters.AddWithValue("#id", employeeRank1List.SelectedValue);
// create a new data table that allows us
// to store data from tables within objects
DataTable employeeRank1ResponsibilityTable = new DataTable();
// fill the sqlDataAdapter with all the
// information from the query(from the EmployeeRank1 table)
sqlDataAdapter.Fill(employeeRank1ResponsibilityTable);
// set the content of the employeeRank1List
// to be the content from each column in the table
employeeRank1ResponsibilityList.DisplayMemberPath = "Responsibility";
employeeRank1ResponsibilityList.SelectedValuePath = "Id";
employeeRank1ResponsibilityList.ItemsSource = employeeRank1ResponsibilityTable.DefaultView;
}
}
catch (Exception e)
{
// show what is the error
MessageBox.Show(e.ToString());
}
try
{
// create a query and select everything from "EmployeeRank1" table
// except the Password and GenericPassword columns
string query = "select * from EmployeeRank1 where Id = #id";
// Create an SqlCommand and connect to the database
SqlCommand sqlCommand = new SqlCommand(query, sqlConnection);
// create a connection to the database and run sqlCommand
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(sqlCommand);
// use the sqlDataAdapter
using (sqlDataAdapter)
{
// add a value to the EmployeesRank1 Information table, once an item in the EmployeesRank1 table is clicked
sqlCommand.Parameters.AddWithValue("#id", employeeRank1List.SelectedValue);
// create a new data table that allows us
// to store data from tables within objects
DataTable employeeRank1YearsInCompanyTable = new DataTable();
// fill the sqlDataAdapter with all the
// information from the query(from the EmployeeRank1 table)
sqlDataAdapter.Fill(employeeRank1YearsInCompanyTable);
// set the content of the employeeRank1List
// to be the content from each column in the table
employeeRank1YearsInCompanyList.DisplayMemberPath = "YearsInCompany";
employeeRank1YearsInCompanyList.SelectedValuePath = "Id";
employeeRank1YearsInCompanyList.ItemsSource = employeeRank1YearsInCompanyTable.DefaultView;
}
}
catch (Exception e)
{
// show what is the error
MessageBox.Show(e.ToString());
}
}
private void employeeRank1List_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if(employeeRank1List.SelectedValue != null)
{
ShowEmployeeRank1Information();
}
}
I want to grab data from database and display in labels based on what the user selects in the list view.
I'm going off an example that does this with two list views, but I don't know how to do it when I'm sending data to a label.
This is the list view example I'm using (my label code is below this)
private void PopulateRecipeIngredients()
{
string query = "SELECT a.Name FROM Ingredient a " +
"INNER JOIN RecipeIngredient b ON a.Id = b.IngredientId " +
"WHERE b.RecipeId = #RecipeId";
// # is a parameter
using (connection = new SqlConnection(connectionString))
using (SqlCommand command = new SqlCommand(query, connection))
using (SqlDataAdapter adapter = new SqlDataAdapter(command))
{
// whatever recipe is selected in lstRecipes box, get the id of that and pass into query above
command.Parameters.AddWithValue("#RecipeId", lstRecipes.SelectedValue);
// DataTable holds the data return from query
DataTable ingredientTable = new DataTable();
// SqlDataAdapter object adapter fills the ingredientTable DataTable object with results from query
adapter.Fill(ingredientTable);
// Display value of Name ex. salad
lstIngredients.DisplayMember = "Name";
// Id column is how we reference
lstIngredients.ValueMember = "Id";
// connect list box on form to data in recipeTable
lstIngredients.DataSource = ingredientTable;
}
}
MY CODE:
private void PopulateCourseDetails()
{
string query = "SELECT * FROM Course_Info WHERE Id = #CourseId";
using (connection = new SqlConnection(connectionString))
using (SqlCommand command = new SqlCommand(query, connection))
using (SqlDataAdapter adapter = new SqlDataAdapter(command))
{
command.Parameters.AddWithValue("#CourseId", lstCourses.SelectedValue);
DataTable courseTable = new DataTable();
adapter.Fill(courseTable);
lblCourseId.Text = "Course_id";
lblCourseSection.Text = "Course_section";
lblCourseName.Text = "Course_name";
lblCourseDay.Text = "Course_day";
lblCourseStartTime.Text = "Course_start_time";
lblCourseEndTime.Text = "Course_end_time";
lblCourseProfessor.Text = "Course_professor";
lblCourseProfessorEmail.Text = "Course_professor_email";
lstCourses.ValueMember = "Id";
}
}
lblCourseId.Text = (string)courseTable.Rows[0]["Course_id"]
should work as long as you have one row in the result table
Assuming that your DataTable has now been properly populated, you now have a table with a number of rows.
First you need to pull out the first row
var row = courseTable.Rows.FirstOrDefault();
Now you've got a row with a number of columns. You can access each column by either index or column name.
lblCourseId.Text = row[0];
If you want the label to maintain it's header, you can do something like
lblCourseId.Text = "Course_id: " + row[0];
I have this code
SqlConnection conn = Database.GetConnection();
//not sure why doing this bit (bit between this comment and next
//SqlDataAdapter adapter = new SqlDataAdapter("Select * From CarType", conn);
DataSet DataSetRentals2 = new DataSet("CustomerSQLTable");
DataTable table = new DataTable("CustomerSQLTable"); //you can name it
DataTable table2 = new DataTable("CarRental");
using (SqlDataAdapter adapter = new SqlDataAdapter())
{
adapter.SelectCommand = new SqlCommand("SELECT * FROM Customer", conn);
conn.Open();
///this might brake the code
///
adapter.Fill(DataSetRentals2,"CustomerSQLTable");
adapter.SelectCommand = new SqlCommand("SELECT * FROM CarRental", conn);
adapter.Fill(DataSetRentals2, "CarRental");
adapter.Fill(DataSetRentals2, "CarRental");
}
CustomerGrid.DataSource = DataSetRentals2;
CustomerGrid.DataMember = "CustomerSQLTable";
CarRGrid.DataSource = DataSetRentals2.Tables["CarRental"];
CarRGrid.DataMember = "CarRental";
the teacher gave me this code to link them in a relationship so that when i click on one customer number in one data grid and for it to only return corresponding records in the other.
DataRowView selectedRow =
(DataRowView)CustomerGrid.SelectedRows[0].DataBoundItem;
DataSetRentals2.Tables["CarRental"].DefaultView.RowFilter =
"CustomerNo = " + selectedRow.Row["CustomerNo"].ToString();.
so what i think i need to do is to name the columns in the dataset. But i have no idea how to do this. I'm sure there must be a way an I'm sure you guy's can easily tell me it. Thank you in advanced.
dataTable.Columns[0].ColumnName = "MyColumnName";
Your columns will already have names. They are supplied by the database.
I would guess that your issue is with this line. If this isn't it please describe what you're expecting to happen, vs what is actually happening so that we may assist you better.
CarRGrid.DataSource = DataSetRentals2.Tables["CarRental"];
Which should probably be
CarRGrid.DataSource = DataSetRentals2;
I have been wondering for quiet long time how can I set my SqlDataReader to fill column "pocet" in my datagridview "dtg_ksluzby". I thought that my code should look something like this:
SqlCommand novyprikaz2 = new SqlCommand("SELECT pocet FROM klisluz WHERE id='"+vyberradek+"'",spojeni); // I also have column "pocet" in table klisluz, vyberradek is string which selectrs id number
spojeni.Open();
SqlDataReader precti2 = novyprikaz2.ExecuteReader();
if (precti2.Read())
{
dtg_ksluzby.Columns["pocet"]; // this part I need to improve to fill
}
Would you please help me to improve my code?
Thanks so much in advance.
Edit for trippino:
In "klisluz" which is in the table that includes columns
(id,akce,subkey,text,pocet). I need to:
select * from klisluz where subkey = '"+vyberradek+"'
Take column pocet and fill it into dtg_ksluzby where i find the text is similar in column "text" in dtg_ksluzby
I hope my description is understandabla, sorry for my weak english.
Do not use string concatenation to build sql commands, (to avoid Sql Injection and parsing problem)
using(SqlConnection spojeni = new SqlConnection(conString))
using(SqlCommand novyprikaz2 = new SqlCommand("SELECT pocet FROM klisluz " +
"WHERE id = #id",spojeni);
{
novyprikaz2.Parameters.AddWithValue("#id", vyberradek);
spojeni.Open();
using(SqlDataAdapter da = new SqlDataAdapter(novyprikaz2))
{
DataTable dt = new DataTable();
da.Fill(dt);
dtg_ksluzby.DataSource = dt;
}
}
Use a DataAdapter to load your data from database and pass this DataAdapter instance to the DataSource of your DataGridView
Use something like this:
for (int i = 0; i < dtg_ksluzby.Rows.Count; i++)
{
var row = dtg_ksluzby.Rows[i];
using(var novyprikaz2 = new SqlCommand("SELECT pocet FROM klisluz WHERE text LIKE #t AND subkey=#s", spojeni))
{
novyprikaz2.Parameters.AddWithValue("#t", row.Cells["text"].Value.ToString());
novyprikaz2.Parameters.AddWithValue("#s", vyberradek);
spojeni.Open();
SqlDataReader precti2 = novyprikaz2.ExecuteReader();
if (precti2.Read())
{
row.Cells["pocet"].Value = precti2["pocet"];
}
}
}