private void button1_Click(object sender, EventArgs e)
{
try
{
if (transaction_idTextBox.Text == "" || lastnameTextBox.Text == "" || firstnameTextBox.Text == "" || middlenameTextBox.Text == "" || txtYear.Text == "" || txtDoI.Text == "" || txtPoI.Text == "" || txtAddress.Text == "" || CB_Sex.Text == "" || txtCS.Text == "" || txtDoB.Text == "" || txtPoB.Text == "" || txtAmount.Text == "")
{
MessageBox.Show("All Fields Are Compulsory");
}
else
{
SqlCommand cmdinsert = new SqlCommand("Insert into [Transaction] values( ' " + transaction_idTextBox.Text + " ','" + lastnameTextBox.Text + "','" + firstnameTextBox.Text + " ','" + middlenameTextBox.Text + "','" + txtYear.Text + "','" + txtDoI.Text + "','" + txtPoI.Text + "','" + txtAddress.Text + "','" + CB_Sex.Text + "','" + txtCS.Text + "','" + txtDoB.Text + "','" + txtPoI.Text + "','" + txtAmount.Text + "' )", con);
con.Open();
cmdinsert.CommandType = CommandType.Text;
cmdinsert.ExecuteNonQuery();
MessageBox.Show("Data Added");
transactionDataGridView.Update();
transactionDataGridView.Refresh();
transaction_idTextBox.Text = "";
lastnameTextBox.Text = "";
firstnameTextBox.Text = "";
middlenameTextBox.Text = "";
txtYear.Text = "";
txtDoI.Text = "";
txtPoI.Text = "";
txtAddress.Text = "";
CB_Sex.Text = "";
txtCS.Text = "";
txtDoB.Text = "";
txtPoB.Text = "";
txtAmount.Text = "";
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
if (con.State == ConnectionState.Open)
{
con.Close();
}
}
}
For first : Add "LoadData();" at the end of Your code
Secondly add this to populate DataGridView:
public void LoadDataEQ()
{
DataTable AllDataTable = new DataTable();
string SqlCommand = "SELECT * FROM Transaction";
SqlDataAdapter SQLDA = new SqlDataAdapter(SqlCommand , con);
SQLDA.Fill(AllDataTable);
SQLDA.Dispose();
dataGridView1.DataSource = AllDataTable;
}
Related
I wanted to insert data to microsoft access using c# and need to use class.
I've tried removing some textbox and look for some error and I feel that there might be some mistake in IF condition.
private void registerbutton_Click(object sender, EventArgs e)
{
-- CLASS --
RegStudent reg = new RegStudent();
reg.stdfname = fnametextbox.Text;
reg.stdlname = lnametextbox.Text;
reg.username = usernametextbox.Text;
reg.password = passwordtextbox.Text;
reg.dob = dobtextbox.Text;
reg.city = citytextbox.Text;
reg.state = statetextbox.Text;
reg.email = emailtextbox.Text;
reg.phoneno = ctcnotextbox.Text;
reg.phoneno2 = ctcnotextbox2.Text;
reg.course = coursetextbox.Text;
reg.emergencyname = emergencynametextbox.Text;
reg.emergencyphoneno = emergencynumbertextbox.Text;
reg.registerdate = registerdatetextbox.Text;
if (tptextbox.Text != "" && fnametextbox.Text != "" && lnametextbox.Text != "" && dobtextbox.Text != "" && usernametextbox.Text != "" && passwordtextbox.Text != "" && citytextbox.Text != "" && statetextbox.Text != "" && registerdatetextbox.Text != "" && emailtextbox.Text != "" && ctcnotextbox.Text != "" && ctcnotextbox2.Text != "" && coursetextbox.Text != "" && emergencynametextbox.Text != "" && emergencynumbertextbox.Text != "")
{
registerconnection.Open();
OleDbCommand insert = new OleDbCommand();
insert.Connection = registerconnection;
insert.CommandText = "Insert into StudentDatabase values (" + reg.stdfname + "','" + reg.stdlname + "','" + reg.username + "','" + reg.password + "','" + reg.dob + "','" + reg.city + "','" + reg.state + "','" + reg.email + "','" + reg.phoneno + "','" + reg.phoneno2 + "','" + reg.course + "','" + reg.emergencyname + "','" + reg.emergencyphoneno + ");";
insert.CommandType = CommandType.Text;
insert.Connection = registerconnection;
insert.ExecuteNonQuery();
MessageBox.Show("Data Have Been Registered.");
}
else
{
MessageBox.Show("error");
}
}
I expected that the output will be that the data will be saved.
this work but i want to display if value exist, so user can see the value username and last_update in each label based on each process_id but they have same request_id. this code only display username and last_update for the one that based on username login only.how i can do that ?
using(SqlConnection con=new SqlConnection(ConfigurationManager.ConnectionStrings["MESTrans"].ConnectionString))
{
//bool exists = false;
int exists;
con.Open();
foreach (GridViewRow row in GridView2.Rows)
{
int req_id = Convert.ToInt32(GridView2.DataKeys[row.RowIndex].Values[0]);
using (SqlCommand cmd = new SqlCommand("select count(*) from [CutPanelConfirmation] where req_id=#req_id and process_id=#process_id", con))
{
cmd.Parameters.AddWithValue("#process_id", Session["process_id"].ToString());
cmd.Parameters.AddWithValue("#req_id", req_id);
exists = (int)cmd.ExecuteScalar();
}
if (exists > 0)
{
query = "select * from CutPanelConfirmation where req_id=#req_id and process_id=#process_id";
cmd = new SqlCommand(query, con);
cmd.Parameters.AddWithValue("#process_id", Session["process_id"].ToString());
cmd.Parameters.AddWithValue("#req_id", req_id);
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
if ((string)dr["process_id"] == "marker")
{
LabelNameMarker.Text = LabelNameMarker.Text + " " + dr[1].ToString();
LabelDateMarker.Text = LabelDateMarker.Text + " " + dr[3].ToString();
}
if ((string)dr["process_id"] == "fabric")
{
LabelNameFabric.Text = LabelNameFabric.Text + " " + dr[1].ToString();
LabelDateFabric.Text = LabelDateFabric.Text + " " + dr[3].ToString();
}
if ((string)dr["process_id"] == "cutting")
{
LabelNameCutting.Text = LabelNameCutting.Text + " " + dr[1].ToString();
LabelDateCutting.Text = LabelDateCutting.Text + " " + dr[3].ToString();
}
if ((string)dr["process_id"] == "SPP")
{
LabelNameSPP.Text = LabelNameSPP.Text + " " + dr[1].ToString();
LabelDateSPP.Text = LabelDateSPP.Text + " " + dr[3].ToString();
}
if ((string)dr["process_id"] == "kitting")
{
LabelNameKitting.Text = LabelNameKitting.Text + " " + dr[1].ToString();
LabelDateKitting.Text = LabelDateKitting.Text + " " + dr[3].ToString();
}
if ((string)dr["process_id"] == "sew")
{
LabelNameSew.Text = LabelNameSew.Text + " " + dr[1].ToString();
LabelDateSew.Text = LabelDateSew.Text + " " + dr[3].ToString();
}
}
dr.Close();
}
con.Close();
}
}
posting [https://stackoverflow.com/users/7892938/nfh][NFH] answer
i just delete#process id from this query and it works as what i want! :
query = "select * from CutPanelConfirmation where req_id=#req_id and process_id=#process_id"; cmd = new SqlCommand(query, con); cmd.Parameters.AddWithValue("#process_id", Session["process_id"].ToString()); cmd.Parameters.AddWithValue("#req_id", req_id); SqlDataReader dr = cmd.ExecuteReader();
When i click the insert button, my program always tell me that i have a SQL syntax error near CPF, but the error starts in the middle of the textbox, just as i write 190.890.567-45 in the text box and the program tells me that the error is near '567-45', here is the code:
private void btninserir_Click(object sender, EventArgs e)
{
string sql;
int numero;
sql = "select * from doador where CPF = " + txtCPF.Text;
DataTable dt = bd.executarconsulta(sql);
if (dt.Rows.Count > 0)
{
MessageBox.Show("Doador já cadastrado!!!!", "Erro", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
else
{
if (txtNome.Text != "" || txtCel.Text != "" || txtCPF.Text != "" || txtEndereco.Text != "" || txtTelRe.Text != "" || int.TryParse(txtIdade.Text, out numero))
{
bd.ConectarBD();
sql = "INSERT INTO DOADOR(CPF, NOME, IDADE, TELCASA, TELCELULAR, ENDERECO) VALUES('" + txtCPF.Text + "','" + txtNome.Text + "'," + txtIdade.Text + ",'" + txtTelRe.Text + "','" + txtCel.Text + "','" + txtEndereco.Text + "')";
bd.executarcomandos(sql);
MessageBox.Show("Doador Cadastro com sucesso!!!!", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Valor Invalido!!!!", "Erro", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtCPF.BackColor = Color.Red;
txtNome.BackColor = Color.Red;
txtEndereco.BackColor = Color.Red;
txtIdade.BackColor = Color.Red;
txtTelRe.BackColor = Color.Red;
txtCel.BackColor = Color.Red;
txtCPF.Focus();
}
}
}
Error message
Just add 'between text param in SQL. Like this:
sql = "select * from doador where CPF = '" + txtCPF.Text + "'";
i testing my program and when runed in vs without any error execute !
this is my code :
private void button1_Click(object sender, EventArgs e)
{
OleDbConnection conect = new OleDbConnection();
conect.ConnectionString = "provider=microsoft.jet.oledb.4.0;" + "data source=university.mdb;Jet OLEDB:Database Password=sa#a";
conect.Open();
OleDbCommand o1 = new OleDbCommand();
o1.Connection = conect;
if(button1.Text=="save")
o1.CommandText = "insert into check_user(name_user,pw_user)values('" + textBox1.Text + "','" + textBox2.Text + "')";
else
o1.CommandText = " select * from check_user WHERE (name_user = '" + textBox1.Text + "') and (pw_user = '" + textBox2.Text + "' )";
o1.ExecuteNonQuery();
if (button1.Text != "save")
{
if (o1.ExecuteScalar() == null)
MessageBox.Show("wrong user");
else
{
groupBox1.Visible = false;
menuStrip1.Visible = true;
}
}
else
{
groupBox1.Visible = false;
menuStrip1.Visible = true;
}
conect.Close();
}
but when execute after install app and run this query error occurs :
http://s4.picofile.com/file/8184692692/qq.png
any query select without error executed but query insert or delete occurs this error
please help me
You can't use NonQuery with a "Select". Try this
if(button1.Text=="save")
{
o1.CommandText = "insert into check_user(name_user,pw_user)values('" + textBox1.Text + "','" + textBox2.Text + "')";
o1.ExecuteNonQuery();
}
else
{
o1.CommandText = " select * from check_user WHERE (name_user = '" + textBox1.Text + "') and (pw_user = '" + textBox2.Text + "' )";
o1.ExecuteQuery();
}
I am sorting all records successfully by implementing the following functions.
private const string ASCENDING = " ASC";
private const string DESCENDING = " DESC";
public SortDirection GridViewSortDirection
{
get
{
if (ViewState["sortDirection"] == null)
ViewState["sortDirection"] = SortDirection.Ascending;
return (SortDirection)ViewState["sortDirection"];
}
set { ViewState["sortDirection"] = value; }
}
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
string sortExpression = e.SortExpression;
if (GridViewSortDirection == SortDirection.Ascending)
{
GridViewSortDirection = SortDirection.Descending;
SortGridView(sortExpression, DESCENDING);
}
else
{
GridViewSortDirection = SortDirection.Ascending;
SortGridView(sortExpression, ASCENDING);
}
}
private void SortGridView(string sortExpression, string direction)
{
// You can cache the DataTable for improving performance
DataTable dt = GetData().Tables[0];
DataView dv = new DataView(dt);
dv.Sort = sortExpression + direction;
GridView1.DataSource = dv;
GridView1.DataBind();
}
public DataSet GetData()
{
SqlConnection con = new SqlConnection("Data Source=MEHDI-PC\\SQLEXPRESS; Initial Catalog=PIMS; Integrated Security=true;");
{
using (SqlCommand cmd = new SqlCommand())
{
String sql = "select * from dbo.Documents1";
cmd.Connection = con;
cmd.CommandText = sql;
con.Open();
DataSet ds = new DataSet();
using (SqlDataAdapter adp = new SqlDataAdapter(cmd))
{
adp.Fill(ds);
}
return ds;
}
}
}
I am having problem sorting the searched records. Code i am applying is as following :
protected void GridView2_Sorting(object sender, GridViewSortEventArgs e)
{
string sortExpression = e.SortExpression;
if (GridViewSortDirection == SortDirection.Ascending)
{
GridViewSortDirection = SortDirection.Descending;
SortGridView1(sortExpression, DESCENDING);
}
else
{
GridViewSortDirection = SortDirection.Ascending;
SortGridView1(sortExpression, ASCENDING);
}
}
private void SortGridView1(string sortExpression, string direction)
{
DataTable dt = SearchTable().Tables[0];
DataView dv = new DataView(dt);
dv.Sort = sortExpression + direction;
GridView2.DataSource = dv;
GridView2.DataBind();
}
public DataSet SearchTable()
{
string sql1 = "SELECT * from dbo.Documents1";
bool flag = false;
if (!txtRef.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Ref LIKE N'%" + txtRef.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Ref LIKE N'%" + txtRef.Text + "%'";
}
}
if (!txtSubject.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Subject LIKE N'%" + txtSubject.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Subject LIKE N'%" + txtSubject.Text + "%'";
}
}
if (!ddlSource.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Src =N'" + ddlSource.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Src =N'" + ddlSource.Text + "'";
}
}
if (!ddlDestination.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Dst=N'" + ddlDestination.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Dst =N'" + ddlDestination.Text + "'";
}
}
if (!ddlMedium.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Medium =N'" + ddlMedium.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Medium =N'" + ddlMedium.Text + "'";
}
}
if (!txtDatePrinted.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Date_Printed =N'" + txtDatePrinted.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Date_Printed =N'" + txtDatePrinted.Text + "'";
}
}
if (!txtDateReceived.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Date_Received =N'" + txtDateReceived.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Date_Received =N'" + txtDateReceived.Text + "'";
}
}
if (!ddlDocumentType.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Document_Type =N'" + ddlDocumentType.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Document_Type =N'" + ddlDocumentType.Text + "'";
}
}
if (!txtDueDate.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Due_Date = N'" + txtDueDate.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Due_Date =N'" + txtDueDate.Text + "'";
}
}
if (!txtActualDate.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Actual_Date= N'" + txtActualDate.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Actual_Date=N'" + txtActualDate.Text + "'";
}
}
if (!txtContent.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Content=N'" + txtContent.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Content=N'" + txtContent.Text + "'";
}
}
if (!txtTag.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Tag =N'" + txtTag.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Tag =N'" + txtTag.Text + "'";
}
}
if (!txtIssue.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Issue_No = N'" + txtIssue.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Issue_No = N'" + txtIssue.Text + "'";
}
}
if (!txtNotes.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Notes = N'" + txtNotes.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Notes = N'" + txtNotes.Text + "'";
}
}
if (!ddlAssignedTo.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Assigned_To = N'" + ddlAssignedTo.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Assigned_To = N'" + ddlAssignedTo.Text + "'";
}
}
if (!txtReplyRef.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Reply_Ref LIKE N'%" + txtReplyRef.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Reply_Ref LIKE N'%" + txtReplyRef.Text + "%'";
}
}
if (!ddlPriority.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Priority = N'" + ddlPriority.Text + "'";
flag = true;
}
else
{
sql1 = sql1 + " and Priority = N'" + ddlPriority.Text + "'";
}
}
if (!ddlStatus.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Status LIKE N'%" + ddlStatus.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Status LIKE N'%" + ddlStatus.Text + "%'";
}
}
if (!ddlResponse.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Response LIKE N'%" + ddlResponse.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Response LIKE N'%" + ddlResponse.Text + "%'";
}
}
if (!txtPhysicalFileNo.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Physical_File_No LIKE N'%" + txtPhysicalFileNo.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Physical_File_No LIKE N'%" + txtPhysicalFileNo.Text + "%'";
}
}
if (!txtPhysicalRackLocation.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " where Physical_Rack_Location LIKE N'%" + txtPhysicalRackLocation.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Physical_Rack_Location LIKE N'%" + txtPhysicalRackLocation.Text + "%'";
}
}
using (SqlConnection con = new SqlConnection("Data Source=MEHDI-PC\\SQLEXPRESS;Initial Catalog=PIMS;Integrated Security=True"))
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.Connection = con;
cmd.CommandText = sql1 + ";";
//cmd.CommandType = CommandType.StoredProcedure;
con.Open();
//dataset object to get all select statement results
DataSet ds = new DataSet();
//sql dataadoptor to fill dataset
using (SqlDataAdapter adp = new SqlDataAdapter(cmd))
{
adp.Fill(ds);
}
if (con.State == ConnectionState.Open)
{
con.Close();
}
return ds;
}
}
}
Above code is sorting the searched records in Gridview2, but when it binds the records, it is binding all the records from the database table ... while I need only the searched records to be binded and shown. I cant understand where I am going wrong. Any help will be much appreciated. Thanks in advance.
Please change your searchTable function query like this.
string sql1 = "SELECT * from dbo.Documents1 where 1=1";
bool flag = false;
if (!txtRef.Text.Equals(""))
{
if (flag == false)
{
sql1 = sql1 + " and Ref LIKE N'%" + txtRef.Text + "%'";
flag = true;
}
else
{
sql1 = sql1 + " and Ref LIKE N'%" + txtRef.Text + "%'";
}
}
You need not to put "where" in every if condition you need to add condition with "and" keyword.