I am doing GridView Sorting without ObjectDataSource. For this requirement I need to convert DataTable to DataView, I know I can do that in VS 2008 but How can I do this in VS 2005.
View 20 RepliesI have one gridview and i want to take all the values in a datatable or dataview.
I tried like this
DataTable gridTable = (DataTable) dataGrid1.DataSource;
but gridTable is showing null, it should not show null because gridview has lot of records with 3 columns
Is there any way i can convert/store a gridview.Datasource records in a datatable or dataview?
HOW 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.
converting a DataView to a DataSet?
I have a DataSet 'programs'. I want to sort if before passing it to a user control where it will be rendered.
I created the DataView and sorted it successfully like so:
[Code]....
The line of code to pass my old (unsorted) dataset to the UC is like this:
[Code]....
What is the syntax for passing the dvPrograms to the UC in a similar manner?
I have tried the online converters, and none of them that I have tried will accurately convert this. It still tries to add a .Item property to the dataview and that does not exist in c#. I know this is simple...
dv.Item(e.Item.ItemIndex).Row.Item(1)
I want to get all the data of Dataview in a datatable (which also include the sorted feild)
I have a code
DataTable dt = new DataTable();
DataView dv = (DataView)ViewState["dv"];
dv.Sort = sortExpression + direction;
gvCustomers.DataSource = dv;
gvCustomers.DataBind();
I want to put this data view object to a table as it is. means if the coloum is sorted , then the sorted data should comes to datable or dataset
DataView Dv = new DataView();
Dv = dts.DefaultView;
Dv.Sort = "ReportName";
dset = new DataSet();
DataTable datable = Dv.Table;
dset.Tables.Add(datable);
I convert dataview to datable and sorting.dataview sorting grid. But I covert dataview to dataset.not sorting in gridview...
We are using WCF and ADO.NET entity framework in our ASP.NET 4.0 application. we are using Entity Framework in our WCF service to execute a storedprocedure and return the results.
[WebGet]
public List<Cs_MT> GetSearchResult(string emailId, string localTitle, string colorGrouping)
{[code]....
We are calling the WCF service from our client application and get the results as IEnumerable
IEnumerable<GetSearchResult_ByEmail_Result> SearchResult = dsContext.Execute<GetSearchResult_ByEmail_Result>(new Uri(url));
I want to loop through the records and form a new table. How to loop through it and read the values?Or How to convert IEnumerable to Datatable?
How could I parse a Json string with all the data from my table to a DataTable or a DataView?
View 5 RepliesI am trying to do something I thought would be simple but something isn't working for me.
I have a DataTable that I need to sort by a price ascending, then select an 'nth' row value. The 'nth' value is the row count/10.
[Code]....
What happens is I get the "nth" value from the original tblDeals.
Can we convert the Repeater items back to a datasource?
At post back, I want to convert the repeater items into a datatable which is a datasource was given to the repeater.
I need to handle a datatable or dataview in the code below
private
void SetListDataSource(ListControl
lc, DataView d,
string valueField,
string
textField)
[Code]....
Aspx code:
MembershipUser m_user = Membership.GetUser();
DataTable dt = new DataTable();
dt.Columns.Add("SenderUser");
dt.Columns.Add("RcvUser");
dt.Columns.Add("Message");
foreach (ListItem li in lst_Users.Items) {
[Code] ....
I am calling "Application object" from above aspx page into web service page as below:
[WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string WebMessage() {
List<string> list = new List<string>();
DataTable dt = ((DataTable)HttpContext.Current.Application["Message"]);
[Code] ....
I want to know that the approach im using in Web service page to fetch top 5 messages from Datatable is correct or not? How to do that without using LINQ as I am using framework 2.0 ...
I have Dataset with Data table with unsorted record i used the RowFilter for Filtering the Record like below
DatasetStudent.Tables[0].DefaultView.Sort = "Column Name"
Now i have to Pass the Dataset DatasetStudent with sorted record to Report how i convert the default view to Dataset.
[WebMethod]
public String AuthenticateUser(String username, String password)
{
con.ConnectionString = ConfigurationManager.ConnectionStrings["cn"].ConnectionString;
if (con.State == ConnectionState.Closed)
{
con.Open();
}
[code]...
Also how will i write the code on the page where i am reading the returned value from this webservice?
I have a products table with 3 fields name, price and quantity, I need to fill a datatable with those 3 fields and using a foreach build a chain. I build my chain currently using a datagrid with my following code
this code work good.
string item_name;
string amount;
string quantity;
[Code]....
but I like to form my chain directly from datatable, not rely on a datagrid.
I am storing DataTable inside "Application Object" in .aspx page:
DataTable dt = new DataTable();
dt.Columns.Add("SenderUser");
dt.Columns.Add("RcvUser");
[Code]....
Now, I want to filter DataTable of .asmx page, based on Receiver user (dr["RcvUser"]) defined in .aspx page Example:
I want to filter Datatable based on below condition:
if(dr["RcvUser"] == Session["UserName"])
How to achieve it. I am using Framework 2.0
When i try to sort my table manually, i receive this error:DataTable must be set prior to using DataView.The code is:
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
DataTable sourceTable = GridView1.DataSource as DataTable;
[code]...
How to select top n rows from a datatable/dataview in asp.net.currently I am using the following code by passing the table and number of rows to get the records but is there a better way.
public DataTable SelectTopDataRow(DataTable dt, int count)
{
DataTable dtn = dt.Clone();
for (int i = 0; i < count; i++)
{
dtn.ImportRow(dt.Rows[i]);
}
return dtn;
}
how can i convert the column data in datatable to integer array the column data in datatable stored as:
1
2
3
4
after store to integer array,how can i get the max value in array
I have a page which lists all the files in a particular folder (all PDFs), using a data-table and gridview.
I'm currently sorting this table by the filename (by using a dataview), which isn't that helpful, and I want the gridview of files sorted by the file created or file modified date (as recorded in Windows).
If that's not possible, a second option would be to extract the date from the file name string (no problem doing that), and sort the dataview/datatable or gridview based on that. Example Filename: DailySalesReport-1-15-2010. My only hangup with this is how do I sort on date, when it's a string value? Convert to date? How would I sort the whole dataset based on this converted value?
[Code]....
I have a webservice(Framework 3.5/VS 2008) that assembles data from 3 other webservices and puts it into SQL Server 2005. The data from these webservices is mutually exclusive. What is the recommended architecture for the same?
View 5 RepliesI am having trouble converting a ienumerable to a datatabe here is the code:The problem is in the following line-
ViewState("dt") = elements.CopyToDataTable()
Dim dt As New DataTable
Private Sub DisplayAuthorLastName(ByVal strLetter As String)
[code]...
If I am passed a datatable and I cant change the column structure..is there anyway to set an existing column to a Primary key so I can easily Find() the row I am looking for?
View 1 RepliesI want to sort the string which is in the format given below15% Test;15% Sear;40% Santhosh;30% Jeeson;
The output that I am expecting is
40% Santhosh;30% Jeeson;15% Sear;15% Test;
I wrote the following code but it does not work .
string str = "15% Test;15% Sear;40% Santhosh;30% Jeeson;";
Console.WriteLine(str);
DataTable dt = new DataTable("SortBenchMark");
DataRow dr;
dt.Columns.Add("Weightings", typeof(int));
dt.Columns.Add("BenchMark", typeof(string));
string weightings = string.Empty;
string BenchMarkName = string.Empty;
foreach (object o in str.Split(';'))
{
if(o.ToString().Length > 0)
{
dr = dt.NewRow();
dr["Weightings"] = Convert.ToInt32((o.ToString().Split('%'))[0].ToString().Trim());
dr["BenchMark"] = (o.ToString().Split('%'))[1].ToString().Trim();
dt.Rows.Add(dr);
}
}
dt.AcceptChanges();
DataView dataview = new DataView(dt);
dataview.Sort = "Weightings DESC,BenchMark Asc";
string final = string.Empty;
foreach (DataRow drow in dataview.Table.Rows)
{
final += drow["Weightings"].ToString().Trim() + "% " + drow["BenchMark"].ToString().Trim() + ";";
}
Console.WriteLine(final);
Console.ReadLine();