I would like to bind 'Id', 'Name' and 'Email' from DataTable to RadComboBox. It's possible with ItemTemplate. But I don't want to display 'Email' column in the RadComboBox. I want display 'Email' in the label when the selectedIndexChanged. Is this possible?
View 1 Replies I have one dropdownlist control in my web page.
I want to fill my dropdownlist with multiple columns.
How can i acheive my goal?
Select tbl_name.name,tbl_midname.midname,tbl_last.lastname As name
From tbl_name
inner join tbl_midname on tbl_midname.id=tbl_name.id
inner join tbl_last on tbl_last.id=tbl_name.id
where tbl_name.id='1'
name mid name last name
Pavan Kumar Roy
How to bind all 3 column data in on column.
I need this result
Pavan Kumar Roy
how to copy only the columns in a DataTable to another DataTable?
View 2 RepliesI have a datatable with 17 columns and a bunch of data. I wnat a datatable with only 6 of the columns and the data for those 6 columns. So I need a subset of the original datatable. How do I loop through the original datatable with 17 columns and end up with a datatable with only the 6 columns I want with the corresponding data for those 6 columns?
View 4 RepliesI am getting this error whilie bulding project. i simply has defined a datatable accessing its rows and columns. don't knw why it says Columns is not a member of 'DataTable.
Error 66 'Columns' is not a member of 'DataTable'. E:DOI1TableReports.aspx.vb 342
Error 65 'Rows' is not a member of 'DataTable'. E:DOI1TableReports.aspx.vb 297
Error 73 'NewRow' is not a member of 'DataTable'. E:DOI1TableReports.aspx.vb 410
i want to make a datagrid with 2 columns and many rows the columns i want to have databinding with a datatable
i want the 1 row 1 column of datagrid have data from 1 row of datatable
i want the 1 row 2 column of datagrid have data from 2 row of datatable
i want the 2 row 1 column of datagrid have data from 3 row of datatable
i want the 2 row 2 column of datagrid have data from 4 row of datatable
......
......
i use something like this
[code]...
but i have two times the same in tha datagrid left and right
Im trying to retrieve a datatable that I put into a session variable, however when i do it apears that there are no columns... I have done this before in VB.NET, I'n now using C#, and it worked perfectly, and as far as i can see there is no change in the code other than the obvious syntax changes.
EDIT: The dt (in part 2) variable has the right data when i look in the data visulization window, but i have noticed that the other properties associated with a datatable are abscent. When i hover over a normal looking datatable with my mouse it looks like the following: " dt ----- {System.Data.DataTable}" but in the class im working on it just looks like "dt ----- {}". Also, after I return the session variable into the dt I clone it (dtclone = dt.clone(); ) and the clone is empty in the data visulizer.... what on earth!
EDIT 2: I have now also tried converting the first datatable to a dataset, putting this in the session variable, and recoverting it back to a datatable in the class. Am starting to wonder if it is a probelm with: dt.Load(sqlReader); The data does appear after this step though in the dataset visualiser, but not after being cloned. Code below.
1) SQL command in a webhandler, the results of which populate the datatable to be put into the session variable.
DataTable dt = new DataTable();
SqlDataReader sqlReader= default(SqlDataReader);
SqlDataAdapter sqlAdapter = new SqlDataAdapter();
sqlReader = storedProc.ExecuteReader(CommandBehavior.CloseConnection);
dt.Load(sqlReader);
System.Web.HttpContext.Current.Session["ResultsTable"] = dt;
2) Part of the code in a class which performs calculations on the table:
DataTable dt = (DataTable)HttpContext.Current.Session["ResultsTable"];
I want to add and remove columns on specific conditions. how it's possible.
Alert: Add and remove not Hide and show...
I want search with multiple names in Name coloumn. example I have pass the criteria to Name cloumn is 'Atul', 'Mayur', 'Suraj' this three names how to pass in a query.
View 1 RepliesI have a question in gridview, I want to combine my two or more records into a single cell with two rowsfor Example i have a ID, Name, Year Start, and Year End for Column name in database and i want call it into my gridview that the Year Start and Year End will combine to Year like:
In Database
ID Name Year Start Year End
1 Yourname 2010 2015
In Gridview:
ID Name Year
1 Yourname 2010 2015
in a year column i want it to two row..
I want to bind three column with one row in gridview in asp.net with c#,
i want like this,
Name | Info
----------------------
name | lastname
| phone number
| address
I get this by default
name | last name | phone number | address
I want to search data from three text boxes how can i write code in one button click ??? This if else is not gud formed
protected void Button2_Click(object sender, EventArgs e) {
if (TextBox2.Text == "" || TextBox3.Text =="") {
DateTime dt = Convert.ToDateTime(TextBox1.Text);
SqlCommand cmd = new SqlCommand("SELECT * FROM Transactions where report_type = @report_type and dateadd(dd, datediff(dd,0, [R_date]), 0) = @R_date ");
[Code]...
I am not able to find the projects related to working with excel sheets by using ClosedXML to refer. I have an excel book which contains two sheets.
In sheet 01: In column A: In B: In C:
Student name01 Student's phone number blabla
Student name02 Student's phone number blabla
Student name03 Student's phone number blabla
In sheet 02: In column A: In B: In C:
course name01 computerscience blabla
course name02 dhfsthshbstgs blabla
course name03 garsfghsefrgs blabla
now, I would like to see in two comboboxes (all the words/text presented in the column A) from two sheets, the student name and course name and then I want select any student name and course name of my choice. Afterwards, when I click on a button, my program should display the students phone number and the course name (from column B from both sheets) and related things present in the Column C D E.. of the selected things in combobox in a label or a in a textbox.
PS: I solved the following problem: I can select student name in one combobox and print the the corresponding data from the only one column B (but I worked only with one sheet). It is bit complicated for me to continue with two sheets.
I want to know how to bind a FormView from the code behind with a datatable.
View 1 Replieshow to bind the value to gridview
i have a datatable
DataTable dtBindGrid = new DataTable();
dtBindGrid = serviceobj.SelectExamTimeTable(txtSchoolName.Text, txtBranchName.Text, txtClass.Text, txtExamName.Text);
foreach (DataRow row in dtBindGrid.Rows)
{
[Code]....
this datatable will return me some values like day,date,time,duration,subject,..
here im getting each value in string bec to convert the Time as 9.00am or 9.00pm
DatedTime = Convert.ToDateTime(row["Time"].ToString());
strgettime = DatedTime.ToString("t");
.... how to bind this converted value to my gridview.
I have a DataTable that was built from dynamically created SQL, so I do not know the number of columns in the datatable.
How can I convert this datatable into an IList?
EDIT: I am then going to use this to send to a Telerik Grid on the page.
This is datat table format :
TagName Timestamp Value
Tag1 21-2-2011 12
Tag1 22-2-2011 1
Tag2 21-2-2011 13
I want in this Format
TimeStamp Tag1 Tag2
21-2-2011 12 13
22-2-2011 1 0
How can I setup some format for cells in some column in my DataTable or GridView ?I need to make some double columns rounded , for example :
3.564643 -> 3.56
3.546723 -> 3.55
6.654644 -> 6.65
DataFormatString ?where ?Question still active, I didn't solved the problem :-/
is it possible to bind DataTable to ObjectDataSource?
View 4 Repliesi have panel & i m trying to bind it with data table
as panel has no datasource property. can anyone solve it out.
DataTable dt=new DataTable ();
DataRow dr = dt.NewRow();
dr["serviceid"] = ddlservices.SelectedValue.ToString();
dt.Rows.Add(dr);
foreach (DataRow row in dt.Rows)
{
PanelBody.Controls.Add(row);
PanelBody.DataBind();
}
I need to display the softwares expired validating it with current date.....
but when i fill the dataset and displaying the data in a label.
suppose i have retrieved 3 softwares but i have already put 10 labels to show first 10 expired softwares
iam getting a error on 4th label as it is empty so wat condition should i mention to overcome this problem...
my sample code----
Dim cmd As SqlCommand = New SqlCommand("select distinct productname from productinfo where expirydate > ='" + localdate + "' ", conn) Dim dalogin As SqlDataAdapter = New SqlDataAdapter(cmd) Dim dtlogin As DataSet = New DataSet() dalogin.Fill(dtlogin) If (dtlogin.Tables(0).Rows.Count > 0) Then lblexpiry1.Text = dtlogin.Tables(0).Rows(0).Item(0) If dtlogin.Tables(0).Rows(1).Item(0) Is Nothing Then td1.InnerHtml = "" Else Label1.Text = dtlogin.Tables(0).Rows(1).Item(0) End If If dtlogin.Tables(0).Rows(2).Item(0) Is Nothing Then td1.InnerHtml = "" Else Label2.Text = dtlogin.Tables(0).Rows(2).Item(0) End If If dtlogin.Tables(0).Rows(3).Item(0) Is Nothing Then td1.InnerHtml = "" Else Label3.Text = dtlogin.Tables(0).Rows(3).Item(0) End If Label4.Text = dtlogin.Tables(0).Rows(4).Item(0) Label5.Text = dtlogin.Tables(0).Rows(5).Item(0) Label6.Text = dtlogin.Tables(0).Rows(6).Item(0) Label7.Text = dtlogin.Tables(0).Rows(7).Item(0) Label8.Text = dtlogin.Tables(0).Rows(8).Item(0) Label9.Text = dtlogin.Tables(0).Rows(9).Item(0) End If
I've built a User Control that contains a ListView. To make it work I need to pass to it a DataTable. The columns of this DataTable need to have particular names that match up with what the ListView is expecting. I have a large DataTable that I need to massage/convert over to this different format. To do that I need to filter out columns and rename the column names. The actual data in the DataTable doesn't need to change. Is there a good way to do this without actually instantiating a new DataTable and copying the data from the large DataTable into it?
View 14 RepliesHOW TO specify which columns are in a DataView from a DataTable. I want to create a DataView, that only has the columns from a DataTable that I choose, and in the order I want.
Example:
// DataTable_MyTable ~~ Column #0 is for ID. I do not want my view to get this column.
// DataTable_MyTable ~~ Column #1 is for TYPE. I want this column to come in 2nd place in my view.
// DataTable_MyTable ~~ Column #2 is for NAME. I want this column to com in 1st place in my view.
DataView DataView_MyView = new DataView(DataTable_MyTable ~~ some how only get the columns I want, and in the order I want ~~);
// DataView_MyView now has only 2 columns.
// DataView_MyView ~~ Column #0 is NAME.
// DataView_MyView ~~ Column #1 is TYPE.
How is it possible to change the displayed order of columns from a DataTable?
For example, dataTable "dt" contains two columns "a" and "b". I bind it to a GridView like this:
gridView.DataSource = dt;
gridView.DataBind();
But I'd like the GridView to display "b" first (leftmost).
Important point: I'm using this to export to Excel and there's no actual output to screen, using:
HtmlTextWriter htw = new HtmlTextWriter(sw);
gridView.RenderControl(htw);