I'm trying to show when an inventory is lower than critical. It doesn't seem to get there when I debug the system
This is my code behind
protected void Page_Load(object sender, EventArgs e)
{
GetInventory();
TotalCount();
CriticalItem();
Panel1.Visible = false;
}
void TotalCount()
{
con.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = "SELECT 'Total Count of Inventory ' + '(' + convert(nvarchar,SUM(Quantity)) + ')' AS TotalCount from Inventory";
SqlDataReader data = cmd.ExecuteReader();
if (data.HasRows)
{
while (data.Read())
{
lblTotalCount.Text = data["TotalCount"].ToString();
}
con.Close();
}
else
{
con.Close();
Response.Redirect("Default.aspx");
}
}
void GetInventory()
{
con.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = "SELECT Inventory.InventoryID, Products.ProductName, " +
"Supplier.SupplierName, Inventory.Quantity, Users.LastName + ', ' + Users.FirstName AS UserAccount, " +
"SupplierProducts.CriticalLevel, Inventory.Status, Inventory.DateAdded, Inventory.DateModified, SupplierProducts.Price FROM Inventory " +
"INNER JOIN SupplierProducts ON Inventory.ProductID = SupplierProducts.SupplierProductID " +
"INNER JOIN Products ON SupplierProducts.ProductID = Products.ProductID " +
"INNER JOIN Supplier ON Inventory.SupplierID = Supplier.SupplierID " +
"INNER JOIN Users ON Inventory.UserID = Users.UserID";
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds, "Inventory");
lvInventory.DataSource = ds;
lvInventory.DataBind();
con.Close();
}
void CriticalItem()
{
var intcheck = new DataTable();
using (var da = new SqlDataAdapter("SELECT * FROM Inventory", con))
{
da.Fill(intcheck);
}
var critcheck = new DataTable();
using (var da = new SqlDataAdapter("SELECT * FROM SupplierProducts", con))
{
da.Fill(critcheck);
}
int finalQuantity = Convert.ToInt32(intcheck.Rows[0]["Quantity"]);
int criticalLevel = Convert.ToInt32(critcheck.Rows[0]["CriticalLevel"]);
if (finalQuantity > criticalLevel)
{
Panel1.Visible = true;
criticalItem.Text = "Available";
}
}
I want to criticalItem.text to tell the Inventory that is less than its critical level.
Related
I am stuck with an issue with updating. When I open my Windows form developed in C# using SQL, the update updates all fields but not the name. Could you tell me what I did wrong?
Here is my code
public void cc()
{
cbBname.Items.Clear();
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select * from BkhurData";
db.ExeNonQuery(cmd);
DataTable dt = new DataTable();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
cbBname.Items.Add(dr["Name"].ToString());
}
}
private void BkhurUpdate_Click(object sender, EventArgs e)
{
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "update BkhurData set Name='" + tbBpname.Text + "',Details='" + tbBpdetails.Text + "',Price='" + tbBpprice.Text + "',Size='" + tbBpsize.Text + "', Quantity ='"+tbBpquantity.Text+"' where Name = '" + tbBpname.Text + "'";
db.ExeNonQuery(cmd);
tbBpname.Text = "";
tbBpdetails.Text = "";
tbBpprice.Text = "";
tbBpsize.Text = "";
tbBpquantity.Text = "";
cc();
MessageBox.Show("updated successfully");
}
You are updating the Name where the Name equals tbBpname.Text so it will not change the name for row you are updating.
private string originalName;
public void cc()
{
cbBname.Items.Clear();
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select * from BkhurData";
db.ExeNonQuery(cmd);
DataTable dt = new DataTable();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
cbBname.Items.Add(dr["Name"].ToString());
originalName = dr["Name"].ToString()
}
}
private void BkhurUpdate_Click(object sender, EventArgs e)
{
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "update BkhurData set Name='" + tbBpname.Text + "',Details='" + tbBpdetails.Text + "',Price='" + tbBpprice.Text + "',Size='" + tbBpsize.Text + "', Quantity ='"+tbBpquantity.Text+"' where Name = '" + originalName+ "'";
db.ExeNonQuery(cmd);
tbBpname.Text = "";
tbBpdetails.Text = "";
tbBpprice.Text = "";
tbBpsize.Text = "";
tbBpquantity.Text = "";
cc();
MessageBox.Show("updated successfully");
}
Please note you should use SqlParameters and not build the query as a string.
Basically, what I want to delete an entry form a dataviewtable which pulls data through from MySql. I thought this would be done fairly by effectively copying the modify code and substituting it for 'DELETE'. However, from the code below, you can clearly see that hasn't worked. I will copy most of my code for you:
private void button1_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection("Data Source=DESKTOP-HNR3NJB\\mysql;Initial Catalog=stock;Integrated Security=True");
var sqlQuery = "";
if (IfProductsExists(con, textboxProductID.Text))
{
con.Open();
sqlQuery = #"DELETE FROM [Products] WHERE [ProductID] = '" + textboxProductID.Text + "'";
SqlCommand cmd = new SqlCommand(sqlQuery, con);
cmd.ExecuteNonQuery();
con.Close();
}
else
{
MessageBox.Show("Record doesn't exist!", "ERROR:", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
//Reading Data
LoadData();
}
So that's the delete button's code now for the add button and load data function
Add button:
private void button2_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(#"Data Source=DESKTOP-HNR3NJB\mysql;Initial Catalog=stock;Integrated Security=True");
//insert logic
con.Open();
if(textboxProductID.Text == "" || textboxProductName.Text == "")
{
MessageBox.Show("You have to enter either a product ID or product name", "Error:", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
else
{
bool status = false;
if (comboboxStatus.SelectedIndex == 0)
{
status = true;
}
else
{
status = false;
}
var sqlQuery = "";
if (IfProductsExists(con, textboxProductID.Text))
{
sqlQuery = #"UPDATE [Products] SET [ProductName] = '" + textboxProductName.Text + "' ,[ProductStatus] = '" + status + "' WHERE [ProductID] = '" + textboxProductID.Text + "'";
}
else
{
sqlQuery = #"INSERT INTO [Stock].[dbo].[Products] ([ProductID],[ProductName],[ProductStatus]) VALUES
('" + textboxProductID.Text + "','" + textboxProductName.Text + "','" + status + "')";
}
SqlCommand cmd = new SqlCommand(sqlQuery, con);
cmd.ExecuteNonQuery();
con.Close();
textboxProductID.Clear();
textboxProductName.Clear();
LoadData();
}
}
LoadData function:
public void LoadData()
{
SqlConnection con = new SqlConnection(#"Data Source=DESKTOP-HNR3NJB\mysql;Initial Catalog=stock;Integrated Security=True");
//reading data from sql
SqlDataAdapter sda = new SqlDataAdapter("Select * From [stock].[dbo].[Products]", con);
DataTable dt = new DataTable();
sda.Fill(dt);
dataGridView1.Rows.Clear();
foreach (DataRow item in dt.Rows)
{
int n = dataGridView1.Rows.Add();
dataGridView1.Rows[n].Cells[0].Value = item["ProductID"].ToString();
dataGridView1.Rows[n].Cells[1].Value = item["ProductName"].ToString();
if ((bool)item["ProductStatus"])
{
dataGridView1.Rows[n].Cells[2].Value = "Active";
}
else
{
dataGridView1.Rows[n].Cells[2].Value = "Deactive";
}
}
}
You're going to need the IfProductsExists method too:
private bool IfProductsExists(SqlConnection con, string productCode)
{
SqlDataAdapter sda = new SqlDataAdapter("Select 1 From [Products] WHERE [ProductID]='" + productCode + "'", con);
DataTable dt = new DataTable();
if (dt.Rows.Count > 0)
return true;
else
return false;
}
It's going to be an inventory system that's going to be used at work for the sale and inventory management of IT equipment.
protected void btn_search_Click(object sender, EventArgs e)
{
using (con = new SqlConnection(CS))
{
string _var_search = ddl_search_by.SelectedItem.Text;
string _var_by = ddl_search.SelectedItem.Text;
cmd = new SqlCommand("Select * from UserProfile Where '"+_var_search+"'='" + _var_by + "'", con);
da = new SqlDataAdapter(cmd);
ds = new DataSet();
da.Fill(ds);
Repeater1.DataSource = ds.Tables[0];
Repeater1.DataBind();
if (ds.Tables[0].Rows.Count > 0)
{
txt_not_found.Visible = false;
}
else
{
txt_not_found.Visible = true;
}
}
}
dont use quotes in first parameter:
cmd = new SqlCommand("Select * from UserProfile Where "+_var_search+"='" + _var_by + "'", con);
even better use paramaters:
cmd = new SqlCommand("Select * from UserProfile Where "+_var_search+"=#param", con);
cmd.Parameters.AddWithValue("#param", _var_by);
How to increase totaldownloads value in my database file code is given below
SqlConnection sqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["Con"].ToString());
SqlCommand sqlcmd = new SqlCommand();
SqlDataAdapter da = new SqlDataAdapter();
DataTable dt = new DataTable();
DataRow dr;
protected void Page_Load(object sender, EventArgs e)
{
if (Session["UserId"] == null)
{
lblMessage.Visible = true;
GridView1.Visible = false;
//AppContent.Visible = false;
}
else
{
if (!Page.IsPostBack)
{
SqlConnection sqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["Con"].ToString());
ArrayList myArrayList = ConvertDataSetToArrayList();
Literal objliteral = new Literal();
StringBuilder objSBuilder = new StringBuilder();
//Add some column to datatable display some products
dt.Columns.Add("appImg");
dt.Columns.Add("appName");
dt.Columns.Add("appLink");
dt.Columns.Add("appType");
dt.Columns.Add("TotalVisitors");
dt.Columns.Add("TotalDownloads");
dt.Columns.Add("RemainingVisitors");
// Display each item of ArrayList
foreach (Object row in myArrayList)
{
//Add rows with datatable and bind in the grid view
dr = dt.NewRow();
dr["appImg"] = ((DataRow)row)["AppImg"].ToString();
dr["appName"] = ((DataRow)row)["AppName"].ToString();
dr["appLink"] = ((DataRow)row)["AppLink"].ToString();
dr["appType"] = ((DataRow)row)["AppType"].ToString();
dr["TotalVisitors"] = "Plan Visitors: " + ((DataRow)row)["TotalVisitors"].ToString();
dr["TotalDownloads"] = "Downloaded: " + ((DataRow)row)["TotalDownloads"].ToString();
dr["RemainingVisitors"] = "Remaining Visitors: " + ((DataRow)row)["RemainingVisitors"].ToString();
dt.Rows.Add(dr);
}
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
}
public ArrayList ConvertDataSetToArrayList()
{
SqlConnection sqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["Con"].ToString());
SqlCommand cmd = new SqlCommand();
if (Session["UserId"] != null && (Session["UserTypeId"] != null && Convert.ToInt32(Session["UserTypeId"]) != 2))
{
cmd.CommandText = "Select * from tblApp WHERE AppType = '" + Session["UserOSType"] + "' ORDER BY TotalVisitors";
}
else
{
cmd.CommandText = "Select * from tblApp ORDER BY TotalVisitors";
}
cmd.Connection = sqlcon;
sqlcon.Open();
cmd.ExecuteNonQuery();
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = cmd;
DataSet dsApp = new DataSet();
da.Fill(dsApp, "tblApp");
ArrayList myArrayList = new ArrayList();
foreach (DataRow dtRow in dsApp.Tables[0].Rows)
{
myArrayList.Add(dtRow);
}
sqlcon.Close();
return myArrayList;
}
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "download")
{
Button ib = (Button)e.CommandSource;
int index = Convert.ToInt32(ib.CommandArgument);
GridViewRow row = GridView1.Rows[index];
Label l2 = (Label)row.FindControl("Label2");
Label lbTotallVisitors = (Label)row.FindControl("Label4");
Label lblTotalDownloads = (Label)row.FindControl("Label5");
Label lblRemainingVisitors = (Label)row.FindControl("Label6");
string updateSQL = "UPDATE tblUser SET DownloadedApps = '" + lbl + "', Amount = '" + Session["Amount"] + "', TotalAmount='" + Session["TotalAmount"] + "' WHERE Id= '" + Session["UserId"] + "'";
using (SqlConnection sqlConn = new SqlConnection(ConfigurationManager.ConnectionStrings["Con"].ToString()))
{
using (SqlCommand updateCommand = new SqlCommand(updateSQL, sqlConn))
{
sqlConn.Open();
updateCommand.ExecuteNonQuery();
updateCommand.Connection.Close();
}
}
Response.Redirect(l2.Text);
}
}
UPDATE Table SET Column = Column + 1
My program is working normally when I select a listbox item.it getting datas correct dataset and correctly.when I write to textbox,my source method working and finding right results.but after when I selected listbox item it bringing old dataset datas to screen.What can I do in this methods?
public void ara(string str, int neyegore)
{
sqlcon.Open();
if (neyegore == 0)
komut = new SqlCommand("select * from FilmTablo WHERE ad LIKE '%" + str + "%'", sqlcon);
else if (neyegore == 1)
komut = new SqlCommand("select * from FilmTablo WHERE tur LIKE '%" + str + "%'", sqlcon);
else if (neyegore == 2)
komut = new SqlCommand("select * from FilmTablo WHERE yonetmen LIKE '%" + str + "%'", sqlcon);
else if (neyegore == 3)
komut = new SqlCommand("select * from FilmTablo WHERE oyuncular LIKE '%" + str + "%'", sqlcon);
sdr = null;
sdr = komut.ExecuteReader();
dt2 = new DataTable();
dt2.Load(sdr);
ds2 = new DataSet();
ds2.Tables.Add(dt2);
listBox1.Items.Clear();
// sayac2 = 1;
int i = 0;
while (i < ds2.Tables[0].Rows.Count)
{
listBox1.Items.Add(ds2.Tables[0].Rows[i].ItemArray[0]);
i++;
}
sqlcon.Close();
}
private void listBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
txtad.Text = ds.Tables[1].Rows[listBox1.SelectedIndex].ItemArray[0].ToString().Trim();
txttur.Text = ds.Tables[1].Rows[listBox1.SelectedIndex].ItemArray[1].ToString().Trim();
txtsure.Text = ds.Tables[1].Rows[listBox1.SelectedIndex].ItemArray[2].ToString().Trim();
txtyonetmen.Text = ds.Tables[1].Rows[listBox1.SelectedIndex].ItemArray[3].ToString().Trim();
txtoyuncular.Text = ds.Tables[1].Rows[listBox1.SelectedIndex].ItemArray[4].ToString().Trim();
txtsenaryo.Text = ds.Tables[1].Rows[listBox1.SelectedIndex].ItemArray[5].ToString().Trim();
byte[] resim = (byte[])ds.Tables[1].Rows[listBox1.SelectedIndex].ItemArray[7];
image1.Source = GetBitmapImage(resim);
}
public void listeyiguncelle()
{
sqlcon.Open();
komut = new SqlCommand("select * from FilmTablo", sqlcon);
sdr = null;
sdr = komut.ExecuteReader();
dt = new DataTable();
dt.Load(sdr);
ds = new FilmDataDataSet();
ds.Tables.Add(dt);
listBox1.Items.Clear();
int i = 0;
//MessageBox.Show(ds.Tables[1].Rows.Count.ToString());
while (i < ds.Tables[1].Rows.Count)
{
listBox1.Items.Add(ds.Tables[1].Rows[i].ItemArray[0]);
i++;
}
sqlcon.Close();
lblfilmsayisi.Content = ds.Tables[1].Rows.Count;
}