I am trying to insert data from Excel file to Mysql DB. It works but the problem is, it insert just 1 column. I need to insert all the column from my Excel file
Here is my Code
protected void add_Click(object sender, EventArgs e)
{
if (importfile.HasFile)
{
string path = string.Concat((Server.MapPath("~/temp/" + importfile.FileName)));
importfile.PostedFile.SaveAs(path);
OleDbConnection oleConn = new OleDbConnection(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 8.0;");
OleDbCommand oleCmd = new OleDbCommand("SELECT * FROM [Sheet1$]", oleConn);
OleDbDataAdapter oleAdapter = new OleDbDataAdapter(oleCmd);
DataSet ds = new DataSet();
oleAdapter.Fill(ds);
DataTable Dt = new DataTable();
Dt = ds.Tables[0];
string userId = (string)(Session["id"]);
string groupName = groupname.Text.ToString();
try {
for (int i = 0; i < Dt.Rows.Count; i++)
{
DataRow row = Dt.Rows[i];
int columnCount = Dt.Columns.Count;
string[] columns = new string[columnCount];
for (int j = 0; j < columnCount; j++)
{
columns[j] = row[j].ToString();
}
conn.Open();
string sql = "INSERT INTO contacts(user_id, idNum, contact_name, contact_number, group_name)";
sql += "VALUES('" + userId + "','" + columns[0] + "','" + columns[1] + "','" + columns[2] + "','" + groupName + "')";
MySqlCommand cmd = new MySqlCommand(sql, conn);
int x = cmd.ExecuteNonQuery();
if (x > 0)
{
string message = "Success!";
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append("<script type = 'text/javascript'>");
sb.Append("window.onload = function(){");
sb.Append("alert('");
sb.Append(message);
sb.Append("')};");
sb.Append("</script>");
ClientScript.RegisterStartupScript(this.GetType(), "alert", sb.ToString());
Response.Redirect("viewgroups.aspx");
conn.Close();
}
}
}
catch (Exception)
{
string message = "Failed!";
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append("<script type = 'text/javascript'>");
sb.Append("window.onload = function(){");
sb.Append("alert('");
sb.Append(message);
sb.Append("')};");
sb.Append("</script>");
ClientScript.RegisterStartupScript(this.GetType(), "alert", sb.ToString());
}
Having very hard time with this. Please help. Thanks
Related
Can anybody help me? Why am I getting this error?
If I remove the 'P' from the prod_id which left only number, it can work but if I add alphabet, it says "Invalid column name".
I already added .ToString() to it, but why it still can't take varchar and only take int.
Here is my code
public partial class AddtoCart : System.Web.UI.Page
{
SqlConnection conn = new SqlConnection(Global.cs);
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Session["Username"] == null)
{
Response.Redirect("Authentication.aspx");
}
// Adding product to Gridview
Session["addproduct"] = "false";
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add("sno");
dt.Columns.Add("Id");
dt.Columns.Add("Pname");
dt.Columns.Add("Pimage");
dt.Columns.Add("Pprice");
dt.Columns.Add("Pquantity");
dt.Columns.Add("Ptotal");
if (Request.QueryString["Id"] != null)
{
if (Session["buyitems"] == null)
{
dr = dt.NewRow();
SqlConnection conn = new SqlConnection(Global.cs);
SqlDataAdapter da = new SqlDataAdapter("select * from Product2 where prod_id=" + Request.QueryString["Id"] , conn);
DataSet ds = new DataSet();
da.Fill(ds);
dr["sno"] = 1;
dr["Id"] = ds.Tables[0].Rows[0]["prod_id"].ToString();
dr["Pname"] = ds.Tables[0].Rows[0]["prod_name"].ToString();
dr["Pimage"] = ds.Tables[0].Rows[0]["prod_img"].ToString();
dr["Pprice"] = ds.Tables[0].Rows[0]["prod_price"].ToString();
dr["Pquantity"] = Request.QueryString["quantity"];
int price = Convert.ToInt32(ds.Tables[0].Rows[0]["prod_price"].ToString());
int Quantity = Convert.ToInt16(Request.QueryString["quantity"].ToString());
int TotalPrice = price * Quantity;
dr["Ptotal"] = TotalPrice;
dt.Rows.Add(dr);
conn.Open();
SqlCommand cmd = new SqlCommand("insert into Cart values('" + dr["sno"] + "','" + dr["Id"] + "','" + dr["Pname"] + "','" + dr["Pimage"] + "','" + dr["Pprice"] + "','" + dr["Pquantity"] + "','" + dr["Ptotal"] + "','" + Session["Username"].ToString() + "')", conn);
cmd.ExecuteNonQuery();
conn.Close();
GridView1.DataSource = dt;
GridView1.DataBind();
Session["buyitems"] = dt;
Button1.Enabled = true;
GridView1.FooterRow.Cells[5].Text = "Total Amount";
GridView1.FooterRow.Cells[6].Text = grandtotal().ToString();
Response.Redirect("AddtoCart.aspx");
}
else
{
dt = (DataTable)Session["buyitems"];
int sr;
sr = dt.Rows.Count;
dr = dt.NewRow();
SqlConnection conn = new SqlConnection(Global.cs);
SqlDataAdapter da = new SqlDataAdapter("select * from Product2 where prod_id=" + Request.QueryString["id"], conn);
DataSet ds = new DataSet();
da.Fill(ds);
dr["sno"] = sr + 1;
dr["Id"] = ds.Tables[0].Rows[0]["prod_id"].ToString();
dr["Pname"] = ds.Tables[0].Rows[0]["prod_name"].ToString();
dr["Pimage"] = ds.Tables[0].Rows[0]["prod_img"].ToString();
dr["Pprice"] = ds.Tables[0].Rows[0]["prod_price"].ToString();
dr["Pquantity"] = Request.QueryString["quantity"];
int price = Convert.ToInt32(ds.Tables[0].Rows[0]["prod_price"].ToString());
int Quantity = Convert.ToInt16(Request.QueryString["quantity"].ToString());
int TotalPrice = price * Quantity;
dr["Ptotal"] = TotalPrice;
dt.Rows.Add(dr);
conn.Open();
SqlCommand cmd = new SqlCommand("insert into Cart values('" + dr["sno"] + "','" + dr["Id"] + "','" + dr["Pname"] + "','" + dr["Pimage"] + "','" + dr["Pprice"] + "','" + dr["Pquantity"] + "','" + dr["Ptotal"] + "','" + Session["Username"].ToString() + "')", conn);
cmd.ExecuteNonQuery();
conn.Close();
GridView1.DataSource = dt;
GridView1.DataBind();
Session["buyitems"] = dt;
Button1.Enabled = true;
GridView1.FooterRow.Cells[5].Text = "Total Amount";
GridView1.FooterRow.Cells[6].Text = grandtotal().ToString();
Response.Redirect("AddtoCart.aspx");
}
}
else
{
dt = (DataTable)Session["buyitems"];
GridView1.DataSource = dt;
GridView1.DataBind();
if (GridView1.Rows.Count > 0)
{
GridView1.FooterRow.Cells[5].Text = "Total Amount";
GridView1.FooterRow.Cells[6].Text = grandtotal().ToString();
}
}
}
if (GridView1.Rows.Count.ToString() == "0")
{
Button3.Enabled = false;
Button1.Enabled = false;
}
else
{
Button3.Enabled = true;
Button1.Enabled = true;
}
}
// 2.Calculating Final Price
public int grandtotal()
{
DataTable dt = new DataTable();
dt = (DataTable)Session["buyitems"];
int nrow = dt.Rows.Count;
int i = 0;
int totalprice = 0;
while (i < nrow)
{
totalprice = totalprice + Convert.ToInt32(dt.Rows[i]["Ptotal"].ToString());
i = i + 1;
}
return totalprice;
}
// 4. Deleting Row From Cart
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DataTable dt = new DataTable();
dt = (DataTable)Session["buyitems"];
for (int i = 0; i <= dt.Rows.Count - 1; i++)
{
int sr;
int sr1;
string qdata;
string dtdata;
sr = Convert.ToInt32(dt.Rows[i]["sno"].ToString());
TableCell cell = GridView1.Rows[e.RowIndex].Cells[0];
qdata = cell.Text;
dtdata = sr.ToString();
sr1 = Convert.ToInt32(qdata);
TableCell prID = GridView1.Rows[e.RowIndex].Cells[1];
if (sr == sr1)
{
dt.Rows[i].Delete();
dt.AcceptChanges();
conn.Open();
SqlCommand cmd = new SqlCommand("Delete top (1) from Cart where product_id='" + prID.Text + "' and username= '" + Session["username"] + "' ", conn);
cmd.ExecuteNonQuery();
conn.Close();
//Item Has Been Deleted From Shopping Cart
break;
}
}
// 5. Setting SNo. after deleting Row item from cart
for (int i = 1; i <= dt.Rows.Count; i++)
{
dt.Rows[i - 1]["sno"] = i;
dt.AcceptChanges();
}
Session["buyitems"] = dt;
Response.Redirect("AddtoCart.aspx");
}
// 6. Button Click
protected void Button1_Click(object sender, EventArgs e)
{
bool isTrue = false;
DataTable dt = (DataTable)Session["buyitems"];
for (int i = 0; i <= dt.Rows.Count - 1; i++)
{
//SqlConnection conn = new SqlConnection(Global.cs);
//conn.Open();
//SqlCommand cmd = new SqlCommand("insert into Cart(sno,product_id,product_name,product_price,product_quantity,username) values('" + dt.Rows[i]["sno"] + "','" + dt.Rows[i]["Id"] + "','" + dt.Rows[i]["Pname"] + "','" + dt.Rows[i]["Pprice"] + "','" + dt.Rows[i]["Pquantity"] + "','" + Session["Username"] + "')", conn);
//cmd.ExecuteNonQuery();
//conn.Close();
int pId = Convert.ToInt16(dt.Rows[i]["Id"]);
int pQuantity = Convert.ToInt16(dt.Rows[i]["Pquantity"]);
SqlDataAdapter sda = new SqlDataAdapter("Select stock_count, prod_name from Product2 where prod_id='" + pId + "' ", conn);
DataTable dtble = new DataTable();
sda.Fill(dtble);
int quantity = Convert.ToInt16(dtble.Rows[0][0]);
if(quantity == 0)
{
string pName = dtble.Rows[0][1].ToString();
string msg = "" + pName + " is not in Stock";
Response.Write("<script>alert('" + msg + "');</script>");
isTrue = false;
}
}
if (GridView1.Rows.Count.ToString() == "0")
{
Response.Write("<script>alert('Your Cart is Empty. You cannot place an Order');</script>");
}
else
{
if (isTrue == true)
{
Response.Redirect("Checkout2.aspx");
}
}
// If Session is Null Redirecting to login else Placing the order
if (Session["Username"] == null)
{
Response.Redirect("Authentication.aspx");
}
else
{
Response.Redirect("Checkout2.aspx");
}
}
public void clearCart()
{
conn.Open();
SqlCommand cmd = new SqlCommand("Delete from Cart where username='" + Session["Username"] + "' ", conn);
cmd.ExecuteNonQuery();
conn.Close();
Response.Redirect("AddtoCart.aspx");
}
protected void Button3_Click(object sender, EventArgs e)
{
Session["buyitems"] = null;
clearCart();
}
}
This is the database table
CREATE TABLE [dbo].[Product2]
(
[prod_id] VARCHAR(6) NOT NULL,
[prod_name] VARCHAR(50) NOT NULL,
[prod_price] FLOAT(53) NOT NULL,
[prod_desc] VARCHAR(120) NOT NULL,
[prod_img] NVARCHAR(MAX) NOT NULL,
[prod_cat] VARCHAR(6) NOT NULL,
[stock_count] INT NULL,
[weight] DECIMAL(9, 2) NULL,
[width] DECIMAL(9, 2) NULL,
[length] DECIMAL(9, 2) NULL,
[height] DECIMAL(9, 2) NULL,
[shipping_fee] DECIMAL(9, 2) NOT NULL,
[created_at] DATETIME NOT NULL,
[updated_at] DATETIME NULL,
[prod_status] NVARCHAR(MAX) NULL,
PRIMARY KEY CLUSTERED ([prod_id] ASC),
CONSTRAINT [FK_Product2_ToTable]
FOREIGN KEY ([prod_cat]) REFERENCES [dbo].[Category] ([cat_id])
);
The way you pass the query could lead to SQL Injection.
SqlDataAdapter da = new SqlDataAdapter("select * from Product2 where prod_id=" + Request.QueryString["Id"] , conn);
I expect the final query you want to achieve is
select * from Product2 where prod_id=`P100`
But after revise your code if you do concatenate with 'P' in your query, you will get:
select * from Product2 where prod_id=P100
In which this will return result:
Invalid column name 'P100'
String concatenation into query is dangerous that possible break your query.
You need to create a SqlCommand variable and pass it to the SqlDataAdapter.
And also use SqlParameter to pass the parameter value.
SqlCommand cmd = new SqlCommand("select * from Product2 where prod_id = #Prod_ID", con);
cmd.Parameters.Add("#Prod_ID", SqlDbType.Varchar, 6).Value = "P" + Request.QueryString["id"].ToString;
After create and initialize SqlCommand, then you pass it into SqlDataAdpater as below
SqlDataAdapter da = new SqlDataAdapter(cmd);
Additional recommendation:
Use using block for your SqlConnection, SqlCommand and SqlDataAdapter as these (implemented with IDisposable interface) will automatically dispose the resources once the process is ended or exception is triggered.
DataSet ds = new DataSet();
using (SqlConnection conn = new SqlConnection(Global.cs))
{
using (SqlCommand cmd = new SqlCommand("select * from Product2 where prod_id = #Prod_ID", con))
{
cmd.Parameters.Add("#Prod_ID", SqlDbType.Varchar, 6).Value = "P" + Request.QueryString["id"].ToString;
using (SqlDataAdapter da = new SqlDataAdapter(cmd))
{
da.Fill(ds);
}
}
}
Updated answer with credited to #Tim Schmelter's suggestion
For Using declarations in C#8.0, you are not required to add scope for the using block.
A using declaration is a variable declaration preceded by the using keyword. It tells the compiler that the variable being declared should be disposed at the end of the enclosing scope.
DataSet ds = new DataSet();
using SqlConnection conn = new SqlConnection(Global.cs);
using SqlCommand cmd = new SqlCommand("select * from Product2 where prod_id = #Prod_ID", con);
cmd.Parameters.Add("#Prod_ID", SqlDbType.Varchar, 6).Value = "P" + Request.QueryString["id"].ToString;
using SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
I have excel sheet like below
Condom Lubricant
dic_code condom_receive lubricant_receive
3 100 50
1 150 0
2 270 78
I want import in to database like following way
dic_code condom_receive lubricant_receive
3 100 0
3 0 50
1 150 0
1 0 0
2 270 0
2 0 78
I have write code using C# and ASP.net. But its not working. Please help me out.
protected void importBtn_Click(object sender, EventArgs e)
{
var folder = Server.MapPath("~/temp/");
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
if (FileUpload1.HasFile)
{
string path = string.Concat((Server.MapPath("~/temp/" + FileUpload1.FileName)));
FileUpload1.PostedFile.SaveAs(path);
OleDbConnection OleDbcon = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;");
OleDbCommand cmd = new OleDbCommand("SELECT * FROM [Sheet1$]", OleDbcon);
OleDbDataAdapter objAdapter1 = new OleDbDataAdapter(cmd);
OleDbcon.Open();
DataSet ds = new DataSet();
DataTable dt = new DataTable();
objAdapter1.Fill(ds);
dt = ds.Tables[0];
OleDbcon.Close();
int number_of_columns = dt.Columns.Count;
int number_of_rows = ds.Tables[0].Rows.Count;
string[,] sheetEntries = new string[number_of_rows, number_of_columns];
string[] columnNames = new string[number_of_columns];
for (int j = 0; j < number_of_columns; j++)
{
columnNames[j] = dt.Columns[j].ToString();
}
for (int i = 0; i < number_of_rows; i++)
{
for (int j = 0; j < number_of_columns; j++)
sheetEntries[i, j] = dt.Rows[i].ItemArray.GetValue(j).ToString();
}
string strSQL1 = null;
for (int i1 = 0; i1 < number_of_rows; i1++)
{
if (sheetEntries[0, 1] == "Condom")
{
strSQL1 = "INSERT INTO [import_test]([dic_code],[condom_receive],[lubricant_receive]) VALUES ("
+ sheetEntries[i1, 0] + ",'" + sheetEntries[i1, 1] + "'," + 0 + ");";
SqlCommand cmd1 = new SqlCommand(strSQL1);
dc.Open();
cmd1.Connection = dc.GetConnection();
cmd1.ExecuteNonQuery();
Array.ForEach(Directory.GetFiles((Server.MapPath("~/temp/"))), File.Delete);
Label1.ForeColor = Color.Green;
Label1.Text = "Successfully inserted";
dc.Close();
}
if (sheetEntries[0, 2] == "Lubricant")
{
strSQL1 = "INSERT INTO [import_test]([dic_code],[condom_receive],[lubricant_receive]) VALUES ("
+ sheetEntries[i1, 0] + ",'" + 0 + "'," + sheetEntries[i1, 1] + ");";
SqlCommand cmd1 = new SqlCommand(strSQL1);
dc.Open();
cmd1.Connection = dc.GetConnection();
cmd1.ExecuteNonQuery();
Array.ForEach(Directory.GetFiles((Server.MapPath("~/temp/"))), File.Delete);
Label1.ForeColor = Color.Green;
Label1.Text = "Successfully inserted";
dc.Close();
}
}
}
else
{
Label1.ForeColor = Color.Red;
Label1.Text = "Please select the File";
}
}
I have change my code following way. And its working
protected void importBtn_Click(object sender, EventArgs e)
{
var folder = Server.MapPath("~/temp/");
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
if (FileUpload1.HasFile)
{
string path = string.Concat((Server.MapPath("~/temp/" + FileUpload1.FileName)));
FileUpload1.PostedFile.SaveAs(path);
OleDbConnection OleDbcon = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;");
OleDbCommand cmd = new OleDbCommand("SELECT * FROM [Sheet1$]", OleDbcon);
//OleDbCommand cmd = new OleDbCommand("SELECT * FROM [Sheet1$a2:j]", OleDbcon);
OleDbDataAdapter objAdapter1 = new OleDbDataAdapter(cmd);
OleDbcon.Open();
DataSet ds = new DataSet();
DataTable dt = new DataTable();
objAdapter1.Fill(ds);
dt = ds.Tables[0];
OleDbcon.Close();
int number_of_columns = dt.Columns.Count;
string[] columnNames = new string[number_of_columns];
int k;
for (k = 0; k < number_of_columns; k++)
{
columnNames[k] = dt.Columns[k].ToString();
}
if (columnNames[0] == "v"|| columnNames[1] == "Condom" || columnNames[2] == "Lubricant")
{
OleDbCommand cl_cmd = new OleDbCommand("SELECT * FROM [Sheet1$a2:j]", OleDbcon);
OleDbDataAdapter objAdapter2 = new OleDbDataAdapter(cl_cmd);
OleDbcon.Open();
DataSet ds1 = new DataSet();
DataTable dt1 = new DataTable();
objAdapter2.Fill(ds1);
dt1 = ds1.Tables[0];
OleDbcon.Close();
int number_of_columns1 = dt1.Columns.Count;
string[] columnNames1 = new string[number_of_columns1];
int number_of_rows = ds1.Tables[0].Rows.Count;
string[,] sheetEntries = new string[number_of_rows, number_of_columns];
for (int j = 0; j < number_of_columns1; j++)
{
columnNames1[j] = dt1.Columns[j].ToString();
}
for (int i = 0; i < number_of_rows; i++)
{
for (int j = 0; j < number_of_columns1; j++)
sheetEntries[i, j] = dt1.Rows[i].ItemArray.GetValue(j).ToString();
}
string strSQL1 = null;
for (int i1 = 0; i1 < number_of_rows; i1++)
{
if (columnNames[1] == "Condom")
{
strSQL1 = "INSERT INTO [import_test]([dic_code],[condom_receive],[lubricant_receive]) VALUES ("
+ sheetEntries[i1, 0] + ",'" + sheetEntries[i1, 1] + "'," + 0 + ");";
SqlCommand cmd1 = new SqlCommand(strSQL1);
dc.Open();
cmd1.Connection = dc.GetConnection();
cmd1.ExecuteNonQuery();
Array.ForEach(Directory.GetFiles((Server.MapPath("~/temp/"))), File.Delete);
Label1.ForeColor = Color.Green;
Label1.Text = "Successfully inserted";
dc.Close();
}
if (columnNames[2] == "Lubricant")
{
strSQL1 = "INSERT INTO [import_test]([dic_code],[condom_receive],[lubricant_receive]) VALUES ("
+ sheetEntries[i1, 0] + ",'" + 0 + "'," + sheetEntries[i1, 1] + ");";
SqlCommand cmd1 = new SqlCommand(strSQL1);
dc.Open();
cmd1.Connection = dc.GetConnection();
cmd1.ExecuteNonQuery();
Array.ForEach(Directory.GetFiles((Server.MapPath("~/temp/"))), File.Delete);
Label1.ForeColor = Color.Green;
Label1.Text = "Successfully inserted";
dc.Close();
}
}
}
}
else
{
Label1.ForeColor = Color.Red;
Label1.Text = "Please select the File";
}
}
I am trying to retrieve column value from another table and inserting into another table but can't resolve it no error but unable to resolve it. Empty column appears. Trying to insert t_vrm in insert statement on sql_fix_01 t_vrm is a varchar in SQL Server and its a vehicle registration number (number plate)
But returns empty column.
private void btnProcess_Click(object sender, EventArgs e)
{
tbl = new DataTable();
tbl.Columns.Add(new DataColumn("ticket_reference", System.Type.GetType("System.String")));
tbl.Columns.Add(new DataColumn("ticket_number", System.Type.GetType("System.String")));
tbl.Columns.Add(new DataColumn("t_vrm", System.Type.GetType("System.String")));
tbl.Columns.Add(new DataColumn("sql_fix_01", System.Type.GetType("System.String")));
tbl.Columns.Add(new DataColumn("sql_fix_02", System.Type.GetType("System.String")));
tbl.Columns.Add(new DataColumn("sql_fix_03", System.Type.GetType("System.String")));
tbl.Columns.Add(new DataColumn("sql_fix_04", System.Type.GetType("System.String")));
SqlConnection myConn = new SqlConnection();
myConn.ConnectionString = stringConn;
SqlCommand myComm = new SqlCommand();
myComm.Connection = myConn;
string[] tempArray = new string[this.textBox1.Lines.Length];
tempArray = this.textBox1.Lines;
if (this.textBox1.Lines.Length == 0)
{
return;
}
myConn.Open();
int ticket_number = -666;
string t_vrm = "";
string sql_fix_01 = "";
string stringDatetime = DateTime.Now.ToString("yyyyMMdd HH:mm:ss");
//string stringDatetime = "20120829 17:00:00";
for (int counter = 0; counter <= tempArray.Length - 1; counter++)
{
sql_fix_01 = "";
t_vrm = "";
ticket_number = -666;
if (tempArray[counter].Trim().Length > 0)
{
try
{
myComm.CommandText = "SELECT t_number, t_vrm FROM tickets WHERE t_reference='" + tempArray[counter] + "'";
ticket_number = (int)myComm.ExecuteScalar();
t_vrm = (string)(myComm.ExecuteScalar()).ToString();
MY ERROR IS IN THIS ROW.(t_vrm)
sql_fix_01 = "INSERT INTO [dvla] ([dvla_system_ref],[dvla_seq_no],[dvla_vrm],[dvla_due],[dvla_sent],[dvla_sent_by],[dvla_batch_no],[dvla_response_date],[dvla_query_destination]) VALUES(" + ticket_number.ToString().Trim() + ", 2 , t_vrm , '" + stringDatetime + "', NULL,'',0, NULL, 'DVLATicketLetter');";
}
catch { }
if (ticket_number != -666)
{
tbl.Rows.Add(tempArray[counter], ticket_number,t_vrm, sql_fix_01, sql_fix_02, sql_fix_03, sql_fix_04);
}
}
}
myConn.Close();
this.dataGridView1.DataSource = tbl;
this.dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;
DataView vwExport = new DataView(tbl);
if (sfd.ShowDialog() == DialogResult.OK)
{
if (sfd.FileName != "")
{
btnProcess.Enabled = false;
Application.DoEvents();
StreamWriter sw = null;
FileStream fs = null;
fs = File.Open(sfd.FileName, FileMode.Create, FileAccess.Write);
sw = new StreamWriter(fs, System.Text.Encoding.UTF8);
sw.WriteLine("USE ICPS");
sw.WriteLine("GO");
sw.WriteLine(" ");
sw.WriteLine("/* Set accounts Hold Status to ''VQ4 rescheduled' */");
sw.WriteLine(" ");
foreach (DataRowView drv in vwExport)
{
sw.WriteLine("/* Ticket Reference: " + drv["ticket_reference"].ToString() + "/" + drv["ticket_number"].ToString() + "/" + drv["t_vrm"].ToString() + "*/");
sw.WriteLine(drv["sql_fix_01"].ToString());
You cant use ExecuteScalar with multiple values..
myComm.CommandText = "SELECT t_number, t_vrm
FROM tickets WHERE t_reference='" + tempArray[counter] + "'";
ticket_number = (int)myComm.ExecuteScalar();
t_vrm = (string)(myComm.ExecuteScalar()).ToString();
You will need to use a DataReader instead.
SqlDataReader reader = myComm.ExecuteReader();
// Call Read before accessing data.
while (reader.Read())
{
ticket_number = reader.GetInt32(0);
t_vrm = reader.GetString(1);
}
Also, to reiterate what #Amber said, look at Bobby Tables, you really want to avoid dynamic SQL
Should'nt:
...VALUES(" + ticket_number.ToString().Trim() + ", 2 , t_vrm , '" +...
Be:
...VALUES(" + ticket_number.ToString().Trim() + ", 2 , " + t_vrm + " , '" +...
Your t_vrm variable is part of the string.
Given the following code to export each table in the database:
string strSql = "SELECT * FROM " + tableName;
SqliteConnection sqlCon = new SqliteConnection("Data Source=" + dbPath);
using (SqliteCommand sqlComm = new SqliteCommand(strSql, sqlCon) { CommandType = CommandType.Text })
{
var da = new SqliteDataAdapter(sqlComm);
DataSet ds = new DataSet();
da.Fill(ds);
ds.Tables[0].WriteXml(Path.Combine(syncPath, tableName + "_4.xml"));
}
I'm trying to import the XML back into the database with the following:
SqliteConnection sqlCon = new SqliteConnection("Data Source=" + dataPath + "/Empty.db3");
sqlCon.Open();
DataSet ds = new DataSet();
ds.ReadXml(Path.Combine(syncPath, tableName + "_4.xml"));
DataTable dt = ds.Tables[0];
string keyField = dt.Columns[0].ColumnName;
dt.PrimaryKey = new DataColumn[] { dt.Columns[keyField] };
var adapterForTable1 = new SqliteDataAdapter("Select * from " + tableName, sqlCon);
adapterForTable1.AcceptChangesDuringFill = false;
var builderForTable1 = new SqliteCommandBuilder(adapterForTable1);
adapterForTable1.Update(ds, tableName);
sqlCon.Close();
But I get the error: Dynamic SQL generation is not supported with no base table. How do I fix this?
Abandoned the Update option and wrote this:
SqliteConnection sqlCon = new SqliteConnection("Data Source=" + dataPath + "/Empty.db3");
sqlCon.Open();
SqliteCommand sqlCmd = new SqliteCommand(sqlCon);
DataSet ds = new DataSet();
ds.ReadXml(Path.Combine(syncPath, tableName + "_4.xml"), XmlReadMode.ReadSchema);
foreach(DataTable dt in ds.Tables)
{
//Get field names
string sqlString = "INSERT into " + tableName + " (";
string valString = "";
var sqlParams = new string[dt.Rows[0].ItemArray.Count()];
int count = 0;
foreach(DataColumn dc in dt.Columns)
{
sqlString += dc.ColumnName + ", ";
valString += "#" + dc.ColumnName + ", ";
sqlParams[count] = "#" + dc.ColumnName;
count++;
}
valString = valString.Substring(0, valString.Length - 2);
sqlString = sqlString.Substring(0, sqlString.Length - 2) + ") VALUES (" + valString + ")";
sqlCmd.CommandText = sqlString;
foreach(DataRow dr in dt.Rows)
{
for (int i = 0; i < dr.ItemArray.Count(); i++)
{
sqlCmd.Parameters.AddWithValue(sqlParams[i], dr.ItemArray[i] ?? DBNull.Value);
}
sqlCmd.ExecuteNonQuery();
}
}
I'm trying to export a SQL-Server query to an XML file now and I want to import that file to Access. I don't understand how to do this.
Here is the code I use to generate the XML:
protected void Button1_Click(object sender, EventArgs e) {
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["SqlSconn"].ConnectionString);
con.Open();
string strSQL = "select * from dbo.table_"+test.Text.ToString()+"";
SqlDataAdapter dt = new SqlDataAdapter(strSQL, con);
DataSet ds = new DataSet();
dt.Fill(ds, "" + test.Text.ToString() + "");
ds.WriteXml(Server.MapPath("temp.xml"));
}
This may be a start.
static void SaveToMDB(DataSet ds, string strMDBFile)
{
OleDbConnection cAccess = new OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;Data source=" + strMDBFile);
cAccess.Open();
foreach (DataTable oTable in ds.Tables)
{
OleDbCommand oCommand = new OleDbCommand(
"DROP TABLE [" + oTable.TableName + "]", cAccess);
try
{
oCommand.ExecuteNonQuery();
}
catch (Exception) { }
string strCreateColumns = "";
string strColumnList = "";
string strQuestionList = "";
foreach (DataColumn oColumn in oTable.Columns)
{
strCreateColumns += "[" + oColumn.ColumnName + "] VarChar(255), ";
strColumnList += "[" + oColumn.ColumnName + "],";
strQuestionList += "?,";
}
strCreateColumns = strCreateColumns.Remove(strCreateColumns.Length - 2);
strColumnList = strColumnList.Remove(strColumnList.Length - 1);
strQuestionList = strQuestionList.Remove(strQuestionList.Length - 1);
oCommand = new OleDbCommand("CREATE TABLE [" + oTable.TableName
+ "] (" + strCreateColumns + ")", cAccess);
oCommand.ExecuteNonQuery();
OleDbDataAdapter da = new OleDbDataAdapter(
"SELECT * FROM [" + oTable.TableName + "]", cAccess);
da.MissingSchemaAction = MissingSchemaAction.Add;
da.FillLoadOption = LoadOption.OverwriteChanges;
da.InsertCommand = new OleDbCommand(
"INSERT INTO [" + oTable.TableName + "] (" + strColumnList
+ ") VALUES (" + strQuestionList + ")", cAccess);
foreach (DataColumn oColumn in oTable.Columns)
{
da.InsertCommand.Parameters.Add(
oColumn.ColumnName,
OleDbType.VarChar,
255,
oColumn.ColumnName
);
}
foreach (DataRow oRow in oTable.Rows)
oRow.SetAdded();
da.Update(oTable);
}
}
This Data will work only with ID and Name, using the system :
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Data.Sql;using System.Data.SqlClient;using System.Configuration;using System.Data;using System.IO;
using System.Xml.Linq;
//import SelectiveDatabaseBackup.xml to test9 table
string connectionString = ConfigurationManager.ConnectionStrings["ApplicationServices3"].ConnectionString;
SqlConnection sqlConnection1 = new SqlConnection(connectionString);
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.Text;
DataSet ds = new DataSet();
ds.ReadXml(XDocument.Load("c:/d/SelectiveDatabaseBackup.xml").CreateReader());
foreach (DataTable table in ds.Tables)
{
//Create table
foreach (DataRow row in table.Rows)
{
string name = row[1].ToString();
string id = row[0].ToString();
cmd.CommandText = "INSERT test9 VALUES ('"+ id +"','"+ name + "')";
cmd.Connection = sqlConnection1;
sqlConnection1.Open();
cmd.ExecuteNonQuery();
sqlConnection1.Close();
}
}
//--------------------------