How to show pictures which are located in a folder and the path is in the database But I'm unable to Do it.
testingDataSet RTP = new testingDataSet();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ReportViewer1.LocalReport.ReportPath = Server.MapPath("~/Reports/RTPrpt.rdlc");
FillRTP();
ReportDataSource dataSource = new ReportDataSource("DataSetRTP", RTP.Tables["RTPView"]);
ReportViewer1.LocalReport.DataSources.Clear();
ReportViewer1.LocalReport.DataSources.Add(dataSource);
ReportViewer1.LocalReport.Refresh();
}
private void FillRTP()
{
string connectionString = Properties.Settings.Default.ETHADAIMS;
using (SqlConnection sqlConnection = new SqlConnection(connectionString))
{
string queryString = string.Empty;
queryString = " select * from RTPView";
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(queryString, sqlConnection);
sqlDataAdapter.Fill(RTP, RTP.Tables["RTPView"].TableName);
}
}
}
enter image description here
Photos are not visible. How can I make them to be visible?
Related
This is my one tag:
<asp:Button ID="button" runat="server" Text="ShowOrder" onclick="newTab" />
This is my 'aspx.cs' which will be called when button is clicked
protected void newTab(object sender, EventArgs e)
{
Response.Redirect("Default2.aspx?id="+txtSearchCustomerByID.Value);
}
What I want is to print my sql table on loaded web tab (new page) when it gets loaded.
My stored procedure is displaying the data of my table where id is equal to "id entered by user in textbox".
Now,
protected void Page_Load(object sender, EventArgs e)
{
int id_no = int.Parse(Request.QueryString["id"]);
if (Page.IsPostBack)
{
showOrders(id_no);
}
}
Now what should I have in 'Default2.aspx' so that I will get my table by using,
public void showOrders(int id)
{
using (SqlConnection con = new SqlConnection(strConnString))
{
SqlCommand cmd = new SqlCommand("showOrdersSP", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#id", id);
con.Open();
.......
}
}
I need to use DataTable
So simply when I clicked, I will get data table on new page
You can refer below code:
public void showOrders(int id)
{
using (SqlConnection con = new SqlConnection(strConnString))
{
DataTable dt = new DataTable();
SqlParameter[] p1 = new SqlParameter[1];
p1[0] = new SqlParameter("#id", id);
dt= getRecords_table("showOrdersSP", p1); // you will get your DataTable here
}
}
// Common Method for FillYour Tables
private DataTable getRecords_table(string spname, SqlParameter[] para)
{
string connectionstring = System.Configuration.ConfigurationManager.ConnectionStrings["connName"].ConnectionString.ToString();
SqlConnection con = new SqlConnection(connectionstring);
SqlDataAdapter ad = new SqlDataAdapter(spname, con);
ad.SelectCommand.CommandType = CommandType.StoredProcedure;
DataTable dt = new DataTable();
ad.SelectCommand.Parameters.AddRange(para);
con.Open();
ad.Fill(dt);
con.Close();
return dt;
}
Hope it will helps you
Thanks
This is the first time I'm designing a web site. I'm having problem on connecting to my database. None of buttons work on pages. The most important one is Register button. I fill the form correctly but when I press Register button it doesn't register the new user into database. It even doesn't show any error message which I've considered. For example, it doesn't show that You've registered before or Your registration wasn't successful. No error message and no new record in my database. I've removed the captcha code because I thought that may cause problem.Here's my code:
using System;
using System.Data.SqlClient;
using System.Web.UI.WebControls;
public partial class SignUp : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string strname = Cache["TF"] as string;
if (strname != null)
{
(Master.FindControl("Lozv") as Label).Text = strname;
(Master.FindControl("LinkButton1") as LinkButton).Visible = true;
}
else
{
(Master.FindControl("Lozv") as Label).Text = "Guest";
(Master.FindControl("LinkButton1") as LinkButton).Visible = false;
}
}
protected void Button1_Click1(object sender, EventArgs e)
{
string username = txtboxUser.Text;
SqlConnection sqlc = new SqlConnection("Data Source=.; Database=LDatabase; Integrated Security=True");
SqlCommand cmd = new SqlCommand("SELECT dbo.CheckUserName(#UN)");
cmd.Parameters.AddWithValue("#UN", txtboxUser.Text);
sqlc.Open();
Boolean User = Convert.ToBoolean(cmd.ExecuteScalar());
sqlc.Close();
if (User == false) ////////////// if user name is not in DB//////////////
{
SqlConnection sqlca = new SqlConnection();
sqlca.ConnectionString = "data source=. ; database=LDatabase ; integrated security=true";
SqlCommand cmda = new SqlCommand();
cmda.Connection = sqlca;
cmda.CommandText = "INSERT INTO User_Pass values(#UserName,#Pass,#Name,#LastName,#Email,#Date,#Sex,'0')";
cmda.Parameters.AddWithValue("#UserName", txtboxUser.Text);
cmda.Parameters.AddWithValue("#Pass", txtboxPass.Text);
cmda.Parameters.AddWithValue("#Name", txtboxName.Text);
cmda.Parameters.AddWithValue("#LastName", txtboxSurname.Text);
cmda.Parameters.AddWithValue("#Email", txtboxEmail.Text);
cmda.Parameters.AddWithValue("#Date", DateTime.Now);
cmda.Parameters.AddWithValue("#Sex", rbtnGender.SelectedValue.ToString());
cmd.Parameters.AddWithValue("#manager", "No");
sqlca.Open();
int n= cmda.ExecuteNonQuery();
if (n <= 0)
LMsg.Text = "Your registration wasn't successful";
else
{
txtboxName.Text = "";
txtboxSurname.Text = "";
txtboxUser.Text = "";
txtboxPass.Text = "";
txtboxRePass.Text = "";
txtboxEmail.Text = "";
rbtnGender.SelectedIndex = -1;
LMsg.Text = "You registered successfully.";
}
sqlca.Close();
}
else //////////////if user name is in db//////////////
{
LMsg.Text = "This username has already registered.";
}
}
}
Does Captcha have anything to do with this type of problem? Any help would be appreciated.
Put your button like this in the aspx-markup:
<asp:Button ID="btnRegister" runat="server" Click="Button1_Click1" Height="26px" Text="register" Width="88px"/>
It should trigger the method.
Edit: Or bind the event in the Page_Load method (remove the Click-attribute from the button first - from my previous example above).
protected void Page_Load(object sender, EventArgs e)
{
btnRegister.Click += new EventHandler(Button1_Click1);
string strname = Cache["TF"] as string;
[...]
I am trying to select a user from my default_information.aspx.cs page and display that user information on my registration.aspx page where I already created a registration form.
I am getting System.NullReferenceException:Object reference not set to an instance of an object error. Please help me. I've given the main part of it. I debugged it. I found every data is selected from my DB in string strusername,strpassword. But code breaks on usernametxt.Text = strusername; when i try to show username or password on that text field.
default_information contains
protected void gridviewprofile_SelectedIndexChanged(object sender, EventArgs e)
{
registration objdef = new registration();
string username = gridviewprofile.Rows[gridviewprofile.SelectedIndex].Cells[1].Text;
objdef.displayuser(username);
}
protected void update_Click(object sender, EventArgs e)
{
Response.Redirect("registration.aspx");
}
registration.aspx contains
protected void register_Click(object sender, EventArgs e)
{
user objuser = new user();
objuser.username = usernametxt.Text;
objuser.password = passwordtxt.Text;
objuser.email = emailtxt.Text;
objuser.Save();
}
public void displayuser(string username)
{ user obj = new user();
DataSet objDataset = obj.profile(username);
string strusername = objDataset.Tables[0].Rows[0][0].ToString();
string strpassword = objDataset.Tables[0].Rows[0][1].ToString();
string stremail = objDataset.Tables[0].Rows[0][2].ToString();
usernametxt.Text = strusername;
passwordtxt.Text = strpassword;
emailtxt.Text = stremail;
}
user class contains
public class user
{
public void Save()
{
clssqlserver obj = new clssqlserver();
obj.insertuser_info(Username,Password,Email);
}
public DataSet profile(string username)
{
clssqlserver obj = new clssqlserver();
return obj.getalluser_info(username);
}
}
clssqlserver contains
public DataSet getalluser_info(string username)
{
string connectionstring = "Data Source=localhost\\mssql;Initial Catalog=blooddb;Integrated Security=True";
SqlConnection objconnection = new SqlConnection(connectionstring);
objconnection.Open();
string command = "Select * from login_donor where username='" + username + "' ";
SqlCommand objcommand = new SqlCommand(command, objconnection);
DataSet objdataset = new DataSet();
SqlDataAdapter objadapter = new SqlDataAdapter(objcommand);
objadapter.Fill(objdataset);
objconnection.Close();
return objdataset;
}
public bool insertuser_info(string username,string password,string email)
{ string connectionstring = "Data Source=localhost\\mssql;Initial Catalog=blooddb;Integrated Security=True";
SqlConnection objconnection = new SqlConnection(connectionstring);
objconnection.Open();
string strInsertCommand = "insert into login_donor values('"+ username +"','"+ password + "','"+email+"')";
SqlCommand objcommand = new SqlCommand(strInsertCommand, objconnection);
objcommand.ExecuteNonQuery();
objconnection.Close();
return true;
}
It looks like you are using the asp.net create user wizard control.Because your controls are buried inside another container, you have to be rewarded after some little excavation..Lets start digging......
Using the wizard which is already accessible locate your text box
TextBox usernametxt= (TextBox)CreateUserWizard.FindControl("usernametxt");
usernametxt.Text = strusername;
Hope this will help.
You should check this line
string strusername = objDataset.Tables[0].Rows[0][0].ToString();
you are trying to access directly objDataset.Tables[0], what if there is no user with the supplied username to this method getalluser_info(string username), will the dataset fill the table.
you should first check whether there is any table in the dataset or not.
hope this helps
well i ve found the solution...i was passing Data Between Webforms in worng way..here is the link which helps me: http://dotnetslackers.com/community/blogs/haissam/archive/2007/11/26/ways-to-pass-data-between-webforms.aspx
here is the solution
default_information.aspx contains
protected void gridviewprofile_SelectedIndexChanged(object sender, EventArgs e)
{ string username = gridviewprofile.Rows[gridviewprofile.SelectedIndex].Cells[1].Text;
Response.Redirect("registration.aspx?id="+username);
}
registration.aspx contains:
protected void Page_Load(object sender, EventArgs e)
{
string queryStringID = Request.QueryString["id"];
displayuser(queryStringID);
}
public void displayuser(string username)
{ user obj = new user();
DataSet objDataset = obj.profile(username);
string strusername = objDataset.Tables[0].Rows[0][0].ToString();
string strpassword = objDataset.Tables[0].Rows[0][1].ToString();
string stremail = objDataset.Tables[0].Rows[0][2].ToString();
usernametxt.Text = strusername;
passwordtxt.Text = strpassword;
emailtxt.Text = stremail;
}
This is PageLoad code
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//DropDownList Binding through bussiness logic
Bussiness_logic.DropDownList_Bind(DDL_U, "SHORT_DESC", "UNIT_CODE", "UNIT_SOURCE");
Bussiness_logic.DropDownList_Bind(DDL_Branch, "TYPE_DESC", "TYPE_CODE", "BRANCH_SOURCE");
}
if (Request.QueryString["File"] != null)
{
string fileNo = Request.QueryString["File"].ToString();
Bussiness_logic.OpenConnection();
SqlCommand com = new SqlCommand("LINK_DATA", Bussiness_logic.con);
com.CommandType = CommandType.StoredProcedure;
com.Parameters.AddWithValue("#FILE", fileNo);
SqlDataReader dtr = com.ExecuteReader();
if (dtr.HasRows)
{
dtr.Read();
{
TxtFile.Text = dtr["FILE_NO"].ToString();
DDL_Branch.SelectedValue = dtr["TYPE_DESC"].ToString();
TxtSub.Text = dtr["SUBJECT"].ToString();
DDL_U.SelectedValue = dtr["SHORT_DESC"].ToString();
}
}
Bussiness_logic.CloseConnection();
Label1.Text = "";
}
}
I have get value of QueryString from another page and file my fields according to File variable fetching data from database corresponding to File data .Fields(Two Textbox and two DropDwnList) are filling correctly but when i modify data in textbox or DDL and Click on Update button then it is not updating data .
Update Button code
protected void BtnUpdate_Click(object sender, EventArgs e)
{
Bussiness_logic.OpenConnection();
SqlCommand com = new SqlCommand("UPDATE_DATA",Bussiness_logic.con);
com.CommandType = CommandType.StoredProcedure;
com.Parameters.AddWithValue("#FILE_NO", TxtFile.Text);
com.Parameters.AddWithValue("#SUB",TxtSub.Text);
com.Parameters.AddWithValue("#UNIT",DDL_U.SelectedValue);
com.Parameters.AddWithValue("#BRANCH",DDL_Branch.SelectedValue);
com.ExecuteNonQuery();
Label1.Text = "Action perfomed successfully !!!";
Bussiness_logic.CloseConnection();
Bussiness_logic.Empty_Control(TxtFile, TxtSub, DDL_U, DDL_Branch);
//GridView1.Visible = false;
}
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//DropDownList Binding through bussiness logic
Bussiness_logic.DropDownList_Bind(DDL_U, "SHORT_DESC", "UNIT_CODE", "UNIT_SOURCE");
Bussiness_logic.DropDownList_Bind(DDL_Branch, "TYPE_DESC", "TYPE_CODE", "BRANCH_SOURCE");
if (Request.QueryString["File"] != null)
{
string fileNo = Request.QueryString["File"].ToString();
Bussiness_logic.OpenConnection();
SqlCommand com = new SqlCommand("LINK_DATA", Bussiness_logic.con);
com.CommandType = CommandType.StoredProcedure;
com.Parameters.AddWithValue("#FILE", fileNo);
SqlDataReader dtr = com.ExecuteReader();
if (dtr.HasRows)
{
dtr.Read();
{
TxtFile.Text = dtr["FILE_NO"].ToString();
DDL_Branch.SelectedValue = dtr["TYPE_DESC"].ToString();
TxtSub.Text = dtr["SUBJECT"].ToString();
DDL_U.SelectedValue = dtr["SHORT_DESC"].ToString();
}
}
Bussiness_logic.CloseConnection();
Label1.Text = "";
}
}
}
Put Your second if also in first if.Because when you click update button than your page load event fire first.Means your textbox value again set from textbox.So putting your second if inside first if stop setting the textbox value from database on postbask,
My connection string is placed in web.config as follows.
<connectionStrings>
<add name="empcon" connectionString="Persist Security Info=False;User ID=sa;Password=abc;Initial Catalog=db5pmto8pm;Data Source=SOWMYA-3BBF60D0\SOWMYA" />
</connectionStrings>
and the code of program is...
public partial class empoperations : System.Web.UI.Page
{
string constr = null;
protected void Page_Load(object sender, EventArgs e)
{
ConfigurationManager.ConnectionStrings["empcon"].ToString();
if (!this.IsPostBack)
{
fillemps();
}
}
public void fillemps()
{
dlstemps.Items.Clear();
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["empcon"].ConnectionString);
con.ConnectionString = constr;
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "select * from emp";
cmd.Connection = con;
SqlDataReader reader;
try
{
con.Open();
reader = cmd.ExecuteReader();
while (reader.Read())
{
ListItem lt = new ListItem();
lt.Text = reader["ename"].ToString();
lt.Value = reader["empno"].ToString();
dlstemps.Items.Add(lt);
}
reader.Close();
}
catch (Exception er)
{
lblerror.Text = er.Message;
}
finally
{
con.Close();
}
i am totally new to programing....
i am able to run this application with er.message in label control as "the connection string property has not been initialized"
i need to retrieve the list of names of employees from the emp table in database into the dropdownlist and show them to the user...
can any one please fix it...
Where are you initializing your constr variable? It looks like you can leave that line out.
Also: just use using
using(SqlConnection con = new SqlConnection(
ConfigurationManager.ConnectionStrings["empcon"].ConnectionString)
{
using(SqlCommand cmd = new SqlCommand())
{
cmd.Connection = con;
//Rest of your code here
}
}
Side note: Don't use Select * From. Call out your columns: Select empname, empno From...
You are not assigning ConfigurationManager.ConnectionStrings["empcon"].ToString(); to string constr
protected void Page_Load(object sender, EventArgs e)
{
constr = ConfigurationManager.ConnectionStrings["empcon"].ToString();
...
will probably solve your problem for the time being.