I have created the templatefields in my dynamically created gridview, however, how do i get the values from my dataTable (which populates my gridview) to load into the templatefields I have created?
View 1 RepliesI have no problem when paging my FormView, the dropdownlist does not read the next record and keep the value of the first loaded record? All other textbox control behave normally and move from record to record excepted the ddl??Here the code.
Public Sub DoData()
Dim myConn As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("LocalSqlServer").ConnectionString)
Dim myCommand As SqlCommand = New SqlCommand("SelectSupplier", myConn)
myCommand.CommandText = "SelectSupplier"
[Code]....
I am not clear when do I want to use a webservice over a sqlDataAdapter for dataRetrieval. I want to populate a repeater control which I have been doing from a dataTable that I fill from a sqlDataAdapter. Is there criteria when I would want to use a webservice to fill my dataTable?
View 3 RepliesI am using the following to show a Yes/No for a boolean in my database:
[Code]....
I want to do something similar with a drop down list but I am having problems making the current value the selected value in the dropdownlist:
[Code]....
I am getting the error:
Databinding expressions are only supported on objects that have a DataBinding event.
System.Web.UI.WebControls.ListItem does not have a DataBinding event.
This is what i want to do with my website. I want to pull data from an access query and and load it into a listview table. The user will sort through the data on the website and remove the rows she doesn't want. After the user is done, they will click a send button that will email the data to the appropriate party.I have read the access query data into a data table. I have the list view table built, but I am unsure how bind the data table into the listview table. Is this the best route to go? Will binding the datatable to the listview table allow the user to delete rows out of the datatable?
Protected Sub btnView_Click(sender As Object, e As System.EventArgs) Handles btnView.Click
Dim query As New QueryBuilder.SelectQuery("qryVendorReport")
'Fill data table with vendor information
Dim sample As String = ""
Dim results As New DataTable
results = (db.fillTable(query.toSelectQuery))
[code]...
how to bind the results datatable to lvdatasource. I tried a few different ways to do this with no luck. Maybe the syntax I trying to use is incorrect.
I want to orderby the list. Today date is on the top and then next date and all dates but when today date is passed then it comes on the end of the list. Is there any formal query in linq or some other code is used to achieve this?
08/01/2015
09/01/2015
but when today is passed then it automatically go to end and next today date is on the top
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 have a Data table object that is populated with a sql call. The table has two columns in int. "CustId" and CustomerName"
using C# in the code behind, how can I populate my drop down list box in C# using the DataTable object?
My code looks something like this, but it does not work.
DataTable MyTable=PopulateTable(); // method call
customerDropDownListBox.DataSource=MyTable;
I have a DropDownList and I want to populate using a DataTable.
[Code]....
But when appear the DropDownList show System.Data.DataRow why this don't show the real result of the DataTable ?
My gridview does not use controls, because it is populated using expressions
<asp:TemplateField HeaderText="As Of Sales">
<ItemTemplate>
<%#Getsales(Decimal.Parse(Eval("asofsales").ToString())).ToString("C0")%>
</ItemTemplate>
<FooterTemplate>
<%#Getsales1().ToString("C0")%>
</FooterTemplate>
<FooterStyle Font-Bold="True" />
</asp:TemplateField>
I want to compare column index 1 and column index 8, and if 8 is bigger then 1 it should be a different font color.
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs)
If e.Row.RowType = DataControlRowType.DataRow Then
Dim x As String
x = e.Row.Cells(1).Text
Dim y As String
y = e.Row.Cells(8).Text
If Convert.ToInt32(x) <= Convert.ToInt32(y) Then
e.Row.ForeColor = System.Drawing.Color.Blue
End If
End If
End Sub
I'm trying to populate a drop down list from a datatable. Is this correct way of doing it?
public ViewResult Index()
{
ViewData["CampaignList"] = List;
return View();
}
public IEnumerable<SelectListItem> List
{
get
{
DataTable dt = CampaignRow.GetList(DB, 100, true);
List<SelectListItem> list = new List<SelectListItem>();
foreach (DataRow row in dt.Rows)
{
list.Add(new SelectListItem
{
Text = Convert.ToString(row["CampaignName"]),
Value = Convert.ToString(row["CampaignId"]),
});
}
return list;
}
}
how can i stylize drop down list? how can i add an empty first value ie "select campaign"
This is my GET Method to get my data from my DataTable
Private Function GetData() As PagedDataSource
' Declarations
Dim dt As New DataTable
Dim dr As DataRow
Dim pg As New PagedDataSource
' Add some columns
dt.Columns.Add("Column1")
dt.Columns.Add("Column2")
' Add some test data
For i As Integer = 0 To 10
dr = dt.NewRow
dr("Column1") = i
dr("Column2") = "Some Text " & (i * 5)
dt.Rows.Add(dr)
Next
' Add a DataView from the DataTable to the PagedDataSource
pg.DataSource = dt.DefaultView
' Return the DataTable
Return pg
End Function
It returns the DataTable as "pg"
What changes must I make to this GET method to get the records from a table in my database?
C# examples will also do but would be great to see a reply with my code and then the changes....
i have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.
View 2 Repliesim trying to copying specific record from one datatable to another datatable i used below code
public System.Data.DataTable selectspecificdatarow(System.Data.DataTable dtg, int count, int startindex)
{
System.Data.DataTable dtn = dtg.Clone();
for (int i =startindex; i < count; i++)
[Code]....
its taking too long time in cloneing is there any better way to do this task which is Time effecent
I have a table say, Student.
I have a class 'Student'.
I want to populate IList<Student> with objects of Student class from Student table in database.
Is it possible to implement this?
If yes then how to implement this.
How to populate google charts using ASP.NET Dataset/Datatable
View 1 RepliesCode:
[ScriptService]
public partial class Default2 : System.Web.UI.Page
{
[WebMethod]
[ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
public static string GetStudent()
[code]....
And this is my HTML.What I'm trying to do is populate the JQuery DataTable using the returned JSON Formated data of the WebMethod. But its not working,
I have a problem with getting value of template field; Gridview is in ContentPlaceHolder1;
I'm trying to get value in GridView1_RowCreated event
int RowIndex = GridView1.Rows.Count - 1;
GridView1.Rows[RowIndex].Cells[0].Text = " " + AltKatLinkler;
But this code returns me null or empty.
There is my column, column index is 0. Note: I fill GridView by using SqlDataSource. There is no problem i can see row content in browser but i cant access from codebehind.
<asp:templatefield headertext="Haberler" sortexpression="KategoriID" xmlns:asp="#unknown">
<ItemTemplate>
< a href='<%# "KategoriGoster.aspx?KategoriID=" + Eval("KategoriID")%>'>
<%# Eval("KategoriAd")%>
<%# Eval("Açıklama")%>
</ItemTemplate>
</asp:TemplateField>
'DataTable' is an ambiguous reference between 'System.Data.DataTable' and 'Microsoft.Office.Interop.Word.DataTable'
View 3 RepliesI have an ASP.net GridView with seven columns; the data comes from SQL. Two columns hold javascript that the user can click on to remove or modify an entry in the database. The other five fields contain names, phone numbers, and e-mail addresses of people in a database.
Four of my fields are ASP.net TemplateFields.
When the page loads, everything is displayed correctly. However, if a user clicks a JavaScript link, clicks to sort the GridView by any field, or does any other action that causes a postback, the resulting page may not display the contents of my TemplateFields; they are all blank.
Just so you can see what I'm working with, I have a "name" column which is defined like this:
<asp:TemplateField HeaderText="Name" SortExpression="name" ItemStyle-Width="150">
<ItemTemplate>
<%#(string)Eval("surname") + ", " + (string)Eval("fname") %>
</ItemTemplate>
</asp:TemplateField>
If I step thru the code in the debugger, I see that in the case that the template fields display correctly, the debugger stops on the line that displays the name. In the case that the fields are all blank, it jumps over the code to display the contents of those fields; and for no discrenible reason what-so-ever.
The only thing that seems to cause the problem is that there is a single enum value that is set from the query-string (which tells the page what data to load). When the enum value is set to 1, I never see this error, but it seems that I always see it when the enum value is set to 2.
However, the enum is never ever referenced anywhere in my gridview code.
In any event, the GridView.DataSource = x is always called and GridView.DataBind() is always called. I've tried stepping thru the code and checking that the data from the database is correct. I've tried debugging on the code block where DataBind is called from and also the GridViewRow_DataBound Event handler.
I've seen other posts elesewhere about trouble with TemplateField, but none of them seem to address what's going on here.
I am using the DetailsView Control to read a LastUpdatedDate field (which can be null until an update is performed) from the database. The LastUpdatedDate is of type DateTime saved in UTC. With the DetailsView control, I can use the NullDisplayText property of the boundfield to safely display an custom message. However, once converted to a template field, that property is lost. Now, how would I display that message if the field is null as I am also formatting the date for display to show in local time.
[Code]....
I am having a problem populating my drop down list from my query.
Here is the code I am using:
[code]....
I still get an empty drop down I am sure I am missing something simple.
When someone selects one of the search criteria, I want the other dropdownlist boxes to re-populate with only the information from the current search and take out all other information if that makes sense. This search functionality works except it the dropdownlist boxes stay populated with all information originally loaded from the database. Here is my code:
[Code]....
Basically I want to populate a drop down list with time slots for a user to select. If the time slot is already recorded in the database table I want to skip that one so it doesn't display as a selection in the drop down list.
So my drop down list looks like;
[Code]....
And then I have setup a datasource (even though I may get rid of it to bind in the code behind file)
[Code]....
On a page load, how do I check to see if data in a table has changed? And if any data has changed, populate Gridview1?
View 2 Replies