Forms Data Controls :: Filter The Columns Of A DataTable?
Aug 2, 2010
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?
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Feb 8, 2011
i have gridview and data already binded like this...
First Name Last Name Age Date
Qasim Nadeem 26 13/01/2010
Ali Ahmad 20 17/02/2010
Qadeer Numan 18 23/08/2010
Ahmad Asghar 20 23/08/2010
Mohammad Nadeem 26 13/01/2010
now i have One TextBox and four radio button like 1.rbFirstName,2.rbLastName,3.rbAge,4.rbDatemy requirment is if i select radiobutton first rbFirstname and i will enter a text into textbox than ONKEYUP filter the gridview data and show only those row where data is match in first coloum"First Name" and hide the rest of rows...same required for radiobutton 2,3 and 4 respectively in gridview 2nd ,3rd and 4th coloum....i need this solution in javascript or Jquery but i dont want reload the page...
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Feb 9, 2011
how i can filter gridview coloumns data based on textbox event ONKEYUP....
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Mar 24, 2010
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.
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Mar 22, 2013
i could bind the data form tables to dropdownlist in asp .net using linq.
ex:
var res=from n in dc. contacts where n.location==Hyd select new{n.Id,n.Name};
var res1=from n in dc. Morecontacts where n.location==Hyd select new{n.Id,n.Name};
dropdown1.Datasouce=res;
dropdown1.DataTextField="Name";
dropdown1.DataValueField="Id";
[CODE]...
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May 7, 2015
I am in need of filtering the datatable only with Month and Year .
I am able to perform this in SQL using
Year(date) =2015 and Month(date)= 5
How to perform this using Row Filter ...
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Aug 18, 2015
I have a ListView with Checkbox. My requirement is - When I click on any checkbox then it should return all the columns values of that row on behalf of that CheckBox. After much study I came to know that using DataTable and DataRow I can get all data of particular ID of a Row. But I am unable to work with this. My code is something like below:
DataTable dt=new DataTable();
dt=objBAL.Get_ShoppingCartData();
ListView1.DataSource=dt.Tables[0];
[Code].....
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Jan 7, 2010
Actually i want that HeaderText of gridview should be as column name of datatable, which i assign to that perticular column of gridview.
I have templatefield in that column and AutoGeneratedColumn is false
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May 7, 2015
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
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May 7, 2015
I've created a filter textbox for searching my data in gridview..
ex: i've 3 columns in gridview : ID, NAME, DATE
I ask, how to create a dynamic search for 3 columns in gridview using a textbox?
without writing a query repeatedly :(ID like '%" + search + "%') OR (NAME like '%" + search + "%') OR (DATE like '%" + search + "%')
protected void btnCariConnStrSubmit_Click(object sender, EventArgs e) {
string search = ((TextBox)GridView1.HeaderRow.FindControl("txtCariConnStr")).Text;
string sql = "select * from report where (ID like '%" + search + "%') OR (NAME like '%" + search + "%') OR (DATE like '%" + search + "%') ";
reader = mda.GetData(sql, connStr).CreateDataReader();
if (reader.Read()) { dt = mda.GetData(sql, connStr).Tables[0]; BindGridView(dt); lblRecordNotFound.Visible = false; }
else { Bindemptydt(); lblRecordNotFound.Visible = true; }
((TextBox)GridView1.HeaderRow.FindControl("txtCariConnStr")).Text = search;
}
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Jul 2, 2012
I want to filter grid view, drop down list should select the column and text box will filter the column. like ID NAME Phone Designation fields in gridview.i will select Designation in dropdown and type programmer in text box .so it should filter programmers from the gridview...
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May 7, 2015
How to fetch data in gridview and add newly added item column in same column? As I know fetch data in gridview, my prob is add new data in new column in gridview.
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Jan 27, 2010
I'm looking for the best way (Performance) to do gridview columns formating RunTime /Dynamic depending on the datatable Columns type ,I want to bind the datatable to a gridview and format the Date columns to short date, and currency columns formatted with comma ex 10,000.00 inplace 100000.00 at datatable the column type is double run time (without converting them to String) since I do a filtering and sorting at these columns.
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Jun 17, 2010
Dim dt As New DataTable Dim da As New SqlDataAdapter(s, c)
c.Open()
if Not IsNothing(da) Then
da.Fill(dt)
[code]...
When I call da.fill I am inserting all records from my query. I was then hoping to filter them to display only those where the GroupingID is equal to 0. When I run the above code. I am presented with all the data, the filter did not work. Please can you tell me how to get this working correctly.
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Jan 11, 2010
I would like to implement LINQ IN ASP.NET for filter required data from datatable. I have doubt that what is right place. I have following options
At presentation layer *.aspx.cs
At our Business layer.
At our Data base layer, where query for database happen which is return as a datatable to business layer. Business layer then return the result to presentation layer.right place for LINQ because now i have to further filter data from datatable as per user selecter filters.
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May 7, 2015
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.
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Oct 31, 2010
I need good css for Gridview just like the mac css
can we provide the filter functionality to gridview like the excel filter.
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Apr 7, 2010
i have a dataset which contains some data.
let dataset have some columns one among them is " Type "
let the values in column type be type1,type2.type3 and so on
now if i want to filter dataset which contains only type3
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Feb 25, 2016
I want to add and remove columns on specific conditions. how it's possible.
Alert: Add and remove not Hide and show...
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May 7, 2010
I would like to select some columns from a Datatable, I mean, something like Select Name, Surname, ID,
I'm trying to do something like this:
DataTable dtExcel = new DataTable();
DataRow[] buena = dtExcel.Select("NAME");
in order to get only a view or table with one column (NAME).
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Jun 1, 2010
how to copy only the columns in a DataTable to another DataTable?
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Jul 2, 2010
I 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?
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Apr 2, 2010
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?
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May 28, 2010
[Code]....
Refer to datatable columns with database column names?
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Mar 18, 2010
How can I get common columns from two intersecting datatable inside dataset?
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