I have a problem i just cant get around...I'm trying to sort the contents of a gridview that gets filled from a List<T>.
(working in DAL, BLL & Presentation layers).
The Gridview's source code:
[code]....
What i cant figure out is how to implement the sort method to the gridview when fetching data from a generic list... I have been Googling my a** of trying to solve this.
Split off from [URL]
Getting records From DataBase using DataTale which contain 1000 Rows, then binding to GridView using Generic List. Like above Example
GridView1.DataSource= GetData();
GridView1.Binding();
Now i want to do search, sorting & Paging in the GridView with out Postback of the Page & with out hitting the DataBase when do Paging or searching in GridView.
I have a generic list of a custom type. The custom type has a string and double.I'm binding the list to a gridview and it outputs everything fine.I'm trying to format the double column into a currency format. It is in a template field as I'm calculating a running total. I pass the value to a function that returns a double and adds the current value to a running total which I will show in the footer.
The format is not changing to currency as expected when using String.Format("{0:c}", GetTotal(Convert.ToDouble(Eval("Amount"))))
I'm coding a report page.In this page,there are two date fields for user to filter the date and the GridView is filled depending on these dates in the CodeBehind (When user click the button view).Now I want toimplement a paging/sorting feature for this GridView.I've researched and see there are default paging for GridView which is not very efficient (my report table may have thousands of records) and custom paging but this requires using ObjectDataSource (which I don't use).Thus anyone can recommend me some approaches that are best used in this situation?
View 1 RepliesHow to bind generic list of DataRow to gridView...
I am using MVC arch , in classDAO m fetching data from table and in bussiness layer ,storing datatable into list<DataRow> and finally in controller , i want to bind in gridview..how can i read each datarow value and bind to gridview..
I am displaying data with in textboxes in gridview here user will change the values my problam is how to get the gridview data and assign it to List?
View 1 RepliesModerators Note: THIS ISSUE IS BIG FOR ME AND EVEN IF POSSIBLE, GET THE REPLY FROM THE DESIGNER OF GRIDVIEW. I have been looking for him for long. I am really fed up with reviewing a good lot of web pages on how we can possibly customize the gridview to enable sorting and paging. So many sites have listed out a lot of information and so many guidances. But the problem is that one works out fine and the other is a burden. I really feel bad about being given the job of customizing this kind of a gridview which has no user friendly approach to it. Also, this control is rendered without the pager links inside the <tfoot> tag. I have tried the Pear Pager in php. It is that good and easy to use and compared to that, the gridview in asp.net is the worst ever control i have ever tried so far.
1. i can use the images to indicate the sorting direction
2. I can have the custom pager like
[code]
<<Previous 1 2 3 .. 7 Next >>.
[/code]
When i click the next when i am viewing the page at 3 , the pager links should change as
[code]
<<Previous 2 3 4 .. 7 Next >>
[/code]
Kindly look into this type of requirement and firstly tell me whether this is possible with the gridview control. I would like this request even to be escalated to the designers of the gridview control also, so that Microsoft comes out with a reply THAT WORKS and not the kind of stuff like surfing through a lot of links and pages and finally wasting a lot of days precious time and still breaking the head with this useless control. I have spent a lot of time in searching for a perfect way. Not writing a code that is non-standard. I am really serious b'cos I have spent weeks in customizing this control. If I dont get a solid reply atleast now, I am going to generate all the output by HTML content by custom coding.
I have a listview with a nested gridview. I'm having trouble accessing the gridview. I want the gridview to be filled and displayed when a linkbutton is clicked on the listview. I use FindControl to get linkbutton - but cannot get it to work for the nested gridview. I have gridview working outside the listview, but it fails when nested.
Snippet:
asp.net Code:
<asp:ListView> ...............
<SelectedItemTemplate>
<tr >
<td>
<asp:Label ID="BuildingLabel" runat="server" Text='<%# Eval("Building") %>' CommandName="Select"/>
</td>
<td>
<asp:Label ID="AreaOccupied_m2Label" runat="server"
Text='<%# Eval("[AreaOccupied m2]") %>' />
</td>
</tr>
<tr><td colspan = "2">
</td> </tr>
<tr><td colspan = "2"> <asp:Panel ID="pnlInnerGrid" runat="server">
<asp:GridView ID="GridViewBlocksInner" runat="server">
</asp:GridView>
</asp:Panel></td></tr>
</SelectedItemTemplate>
</asp:ListView>
'Code Behind:
Protected Sub ListViewBuildings_SelectedIndexChanging(ByVal sender As Object, ByVal e As ListViewSelectEventArgs)
'FindControl for linkbutton Works
Dim item As ListViewItem = CType(ListViewBuildings.Items(e.NewSelectedIndex), ListViewItem)
Dim l As LinkButton = CType(item.FindControl("BuildingLabel"), LinkButton)
'FindControl for gridview Does Not Work
Dim gitem As ListViewItem = CType(ListViewBuildings.Items(e.NewSelectedIndex), ListViewItem)
Dim gv As GridView = CType(item.FindControl("GridViewBlocksInner"), GridView)
Try
dsBlocks = SqlHelper.ExecuteDataset( _
DBConnectionString, CommandType.StoredProcedure, _
"procName", New SqlParameter("@Site", strSite))
'Next line gives Error:
gv.DataSource = dsBlocks
gv.DataBind()
Catch ex As Exception
lblMessage.Text = lblMessage.Text & " Error: " + ex.ToString
End Try
Generic List to DataTable
View 1 Replies[Code]....
than i want present data like this
[Code]....
[Code]....
but data doesn't appear on webPage ?? what's wrong with this code ??
I have a following generic list method that contains some data for a gridview. I need to supply edit and delete functionality for it.
List<students> List(string id)
{
List<students> st = new List<students>();
[code]...
I need to "massage" the data a little during OnRowDataBound. When I used DataTable as my data source for my GridView, I could do the following:
[Code]....
How do I grab the row data if I'm getting it from List<Product>?
I have a ListView which is filled by generic list of type MyClass. I can easily bind data from this list into ListView. But I have problems with reading data in opposite direction. This is my class:
[Code]....
I have also generic list of type MyClass:
[Code]....
Finally I bind data to ListView this way:
[Code]....
My ListView template:
[Code]....
How can I read data from ListView into my List list?
The operation of reading ListView data into List generic list should begin after clicking the button "GetData".
I saw the following advice:
[Code]....
but it does not work - the DataItem property of each Item of ListView has null value. The point is that I have generic list with data. I am binding this data into ListView which can be edited by user. After that after click Save or GetData data from ListView is read into generic list of MyClass type.
I'm using a DataSet to fill my gridview. The dataset contains several columns, like: direction - fromNumber - toNumberThe column direction can contain the values "incoming" or "outgoing". In my gridview, I would like to show only 2 columns, direction and from/to. If direction = "incoming", the values from fromNumber has to be inserted in "from/to". If direction = "outgoing", the values from toNumber has to be inserted in "from/to".I know I can use a TemplateField to show different text values in a column...But I have no idea how to do this when I want to show the values from a column...
<asp:BoundField DataField="direction" HeaderText="direction" HtmlEncode="false" />
[Code]....
I get this error when run the page
DataBinding: 'System.Int32' does not contain a property with the name 'item'.
protected void Page_Load(object sender, EventArgs e)
{
List<int> item = new List<int>();
{
item.Add(25);
item.Add(50);
item.Add(520);
item.Add(543);
item.Add(543);
item.Add(55);
};
GridView1.DataSource = item;
GridView1.DataBind();
}
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" ShowFooter="true">
<Columns>
<asp:TemplateField HeaderText="Sub total">
<ItemTemplate>
<asp:Label ID="subTotalLabel" runat="server" Text='<%#Eval("item")%>' />
</ItemTemplate>
<FooterTemplate>
<asp:Label ID="grandTotalLabel" runat="server" />
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I am trying to bind the gererist list type to GridView control but for some reason its just displaying "Member"(Object name) rather then the actuakl content inside object.Any Idea why?Below i have decleared a List Type Member:
[Code]....
And the Below trying to bind with gridview:
[Code]....
In my application binding list is used to to bind the Data to Grid view. Now the requirement is to sort on 3 columns when I bind the data to the Grid View . How can I do this?
View 4 RepliesWith the code i have below i am able to export only one page of gridview to excel. check and modify it once.so that i can import all the pages of gridview to excel at a time with checked status of checkbox.
protected void btnExporttoExcel_Click(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[5] { new DataColumn("Presentees"), new DataColumn("StudentName"), new DataColumn("ColgRegisterNum"), new DataColumn("CollegeName"), new DataColumn("Date"), });
foreach (GridViewRow row in gvStdntDetails.Rows)
[code]...
im just testing out signalr and i am having too much fun and got a little bit far from my usual skill now my question is can i pass a list to the client here is my code actually i learned this from you mr aspsinnipets
Public Sub Send(message As String, id As String)
Dim tomessage = OnlineUser.userObj.Where(Function(users) users.userId = id).[Select](Function(users) users.connectionId).SingleOrDefault()
Dim customers As New List(Of locationslist)
customers.Add(New locationslist)
customers((customers.Count - 1)).CITE_NR = message
[code]....
In my gridview,the first 5 columns are filled with the values retrived from database on selecting an item dropdown.The last i.e, 6th column(date) is filled with value given in the textbox.
Now I need to export the gridview rows to Excel in which checkbox is checked.But Now With the code i have,Excel is containing the empty date column.Pls correct my code to get the proper filled Excel.
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
fillCollegeNames();
}
private void fillCollegeNames()
[code]....
i want to check my collection so i can add a new customer as long as the username does not exist in the collection i do not want 2 customers to be able to have the same username.
i have been trying many different things to try to get this to work but i am not exactly sure what i should be doing I have a aspforum and collection C# class of the list.
here is some things that i have tried
CustomerExists() i also have a collection of List<Customers>
//HERE IS MY EXISTS METHOD
public static Boolean IfCustomerExists(string login) {
List<Customer> theGuy = Collections.Customers;
bool exist = false;
foreach (Customer customer in theGuy)
[Code]....
i tried reading all the articles and tried the solutions as well did not work for me.
One of the solutions i tried
Binding Generic List Array to GridView.
The new project file that I created using your tweeked sample code is below:
[code]....
I got a web page, it has a tabcontainer, within each tab, there will be a gridview, all the tabs and gridview are created at run-time, i have only one code, that I will loop through to create all those tabs and gridview. When I apply the sorting, and I click on the column name on any grid, it returned an error saying index was out of bound. BUT, when there is only ONE grid view created, it is working fine, I suspect it mixed up all the grid view's id and so on. But I have assigned different ID to gridview
View 8 RepliesI'd like to sort a gridview using linkbuttons situated outside the gridview. For instance :
[code]....
I have a generic List which is populated with an object which has properties like FirstName, Surname etc.
If I bind a gridview to the list with autocompletecolumns = true, the Gridview displays the data in the List.
The code looks like:
[code]....
My question is:
How do I populate the DataKeyNames with the properties (FirstName, Surname) contained in the object that is contained in each element of the Generic List?