Delete All Arraylist Item?
Jan 11, 2010how can i delete all arraylist item?
View 6 Replieshow can i delete all arraylist item?
View 6 RepliesI've got an ArrayList bound to a repeater control. In an associated, but separate, area of the page, I'd like to get the first and last item out of the bound control. It's actually a paging element to a table.
Here is the code for the Repeater:
this.Repeater1.DataSource = pagingArray;<br>
this.Repeater1.DataBind();<br>
<asp:Repeater id="Repeater1" runat="server"><br>
<ItemTemplate><br>
<a href="/?page=<%# Container.DataItem %>"><%# Container.DataItem %?</a><br>
</ItemTemplate><br>
</asp:Repeater><br>
I'd like to get the first element from this repeater and display it. The code that I have right now (that doesn't work) is:
<% Response.Write(Repeater1.Items[0].ToString()); %>
I have one ListView. If someone selects an item (as LinkButton) in the ListView, then the program will retrieve the record value and then converted the record value into ArrayList.
Is there VB code example (or showing a link) how to write the program in one page aspx?
i want to create a arraylist which will able to store user info like (username,machineIP,port ) for each user in the list & retrive this data when needed . any one tell me how i can do it or any alternative way without database or xml file.
View 6 RepliesI need you assistance, Dynamic Delete LinkButton with CommandName=Delete gives me an error: Delete can only be called on a valid data item. nfact I am designing a Complex Grid using .Net 3.5 ListView Control with Scrollbar and Fixed Toolbar: This grid consist of 3 Tables:
1- footer
2- Toolbar Control
3- Scrolling Data Grid with Header
ListView give us only one ItemPlaceHolder to Bind Data as per LayoutTemplate, so I cannot able to manupulate my Toolbar Controls with ItemTemplate :(, therefore I decide to use ItemDataBound to add ImageButtons Dynamically using Init Page Event and I am able to get the result as you saw above:
ImageButton with funnel icon is with CommandName="Filter"
ImageButton with magnifier icon is with CommandName="View"
ImageButton with stop icon is with CommandName="Delete"
Now I can able to handle Filter and View with OnItemCommand Event but when I click Delete button I am getting an error as shown below: The grid used CSS I am sending you the HTML and code behind to resolved this problem: HTML CODE:
[Code]....
CODE BEHIND VB.NET
[Code]....
I have one datalist,in datalist one column is UserName and in second column one button i.e. Delete. When I click on Delete then delete the this row from datalist.how to create this functionality.
View 1 RepliesI have a DataList containing a list of elements(ASP.Net app). To delete an item i first used tha classic javascript confirmation. As i found it ugly,i want to use a confirmation box plugin. when i click OK==>Delete the item from DB(using a webservice) But how can i update the DataList. The situation is liek: when u add a comment in Facebook. delete link==>Conf box==>Delete==>Comments List update.
View 1 RepliesI have a collection of objects I bind to a Listview like this:
if (!IsPostBack)
{
List<Equipment> persons = new List<Equipment>
{new Equipment{ItemName = "Sworn", ItemCount = 7, ItemCost = 255}, [code]....
I want to Add/update/delete from this object collection and submit the final data object collection to the BL when the user saves... Rather than just delete/add/update everytime a row is changed.So my question is how do I maintain state for that datasource? I have tried this (delete example)
protected void lvMain_ItemCommand(object sender, ListViewCommandEventArgs e)
{
switch (e.CommandName)
{
case "Delete":
{[code]....
But it does nothing. I can't rebind it to the datasrouce because at this point the datasource is null.. I assume the listview keeps its own view state which contains the data?... I guess worse case I can always hold the Object Collection in a Session object.. ..
I added a Gridview to my page and added a new item a delete button, now when i push that button there is an error... Do I need to add some code for it? And yes, can you give an example?
View 3 RepliesI have a repeater
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("ContactName") %>'></asp:Label><asp:Button ID="Button1" runat="server" Text="view repeater id" />
</ItemTemplate>
</asp:Repeater>
Now onclick button1 i have to get the repeater client id..
Actually my problem is to delete one of the div genereated by repeater on a button click...
I have a site that show infomation that are contained in div blocks. The info is taken from a database so the user can change the info or delete it. When the user deletes a div block i want to use jQuery to animate that its disappearing and also that its deleted from the database. How can i do this without doing a postback, i dont want the site to reload, i just want the Div block to disappear visually and be gone from the database at the same time. Would i use Ajax update panel to achieve this ?
View 3 RepliesI have dropdownlist which items are generated using SQLDataSource. And there is a "Delete Button" next to it. When user selects item from dropdownlist and presses that button I want the item to be removed from DB. Here is the question "How can I achieve this using sqldatasource Delete Command?" I do can remove Item From Code Behind. But i believe it's more efficient to use sqldatasource delete command.
View 2 RepliesI have a reorder list control from the ajax toolkit. When i click a delete button on any of the items i get this error:Server Error in '/' Application.Invalid postback or callback argument. Event validation is enabled using<pagesnableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifiesthat arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback datafor validation.Description: An unhandled exception occurred during the execution of the current web request. Please review thestack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page nableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
I want to delete selected item of dropdownlist on Delete button click
Hint :1-It should also delete value from Database.
2-I want to Delete with the id of that selected item.
<asp:DataList ID="dlmycart" runat="server" RepeatLayout="Table" RepeatColumns="1"
RepeatDirection="Horizontal" CellPadding="0" CellSpacing="0" BackColor="Aqua"
Width="100%">
<ItemStyle Width="80%" BackColor="Violet" />
<ItemTemplate>
<table border="0" style="width: 100%; height: 300px; border: 2px solid Blue; background-color: ; text-align: center">
[Code] ....
I have a ListView which I populate using DataTable.
In each row I have a delete button. When the user clicks on the delete, that particular row is deleted in the DataTable Table.
After I perform the delete, I want to avoid page reload just to populate the ListView with the new set of records without showing the deleted row.
I suppose LINQ is the best choice for this. But I am unable to implement it.
[Code]....
I've a listview in which i'm binding data from objectdata source. I have a requirement where i've to allow edit/delete for only certail listviewitem which meets specific requirement. How do i dynamically set that some item can be only be edited not deleted thus only edit button/link should appear and vice-versa.
View 2 RepliesHow do I reference the delete button to add the delete confirmation box when I have both the Edit and Delete buttons as the last two columns in the Gridview control. The following code works fine without any issues when I have the delete button only:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType != DataControlRowType.DataRow) return;
int lastCellIndex = e.Row.Cells.Count - 1;
Button db = (Button)e.Row.Cells[lastCellIndex].Controls[0];
db.OnClientClick = "if (!window.confirm('Are you sure you want to delete this record?')) return false;";
}
But, when I have both the Edit and the Delete buttons, I get the following error when I click the edit button while the delete button works fine.
Specified argument was out of the range of valid values. Parameter name: index
How do I reference the delete button so the edit button is not affected in this case?
Using "Enable Delete" from Gridview control, I can delete (besides, update, sort, paging, etc) data from the database (this is done automatically). However, how can I delete the actual image that resides in my image folder (i.e. from "pix" folder )? What is the best way to delete image? If using code behind, how? Please write a full code for me. Here is my source code.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="photoID"
I am interested in building an intranet document management system to be used from Internet Explorer using ASP.net, VB.net, and MS SQL Server but have no experience in doing a project like this. Supported file types would be txt, pdf (from scanner or imported from file system), or jpg. What concepts I should look at researching/learning about to build the system in a way that files will be stored as small as possible, retrieved and displayed quickly, and secured. The users would be spread out over a regional area covering 4 states.
View 5 RepliesI have a grid contol that allows delete what I would like to have is someway to say Are you sure you want to delete?I found this code online, and tried it but it did not work, Do I need something more some behind code maybe?Here is what I found online:Adding 'Delete Protection' to controls If you use a control set up to allow Delete, the Delete button gives a straight delete without any warning, which can be dangerous.To give a warning dialog box, add an OnClientClick event to the Delete button, as follows.
<asp:LinkButton
ID="DeleteButton"
runat="server" CausesValidation="False"
CommandName="Delete"
OnClientClick="return confirm('Are you sure you want to delete this record?');"
Text="Delete">
</asp:LinkButton>
Here is my code: You can see where I added the code from above.
<ItemTemplate>
ID:<asp:label id="IDLabel" runat="server" Text='<%# Eval("ID") %>' /><br />
Name:<asp:label id="NameLabel" runat="server" Text='<%# Bind("Name") %>' /><br />
Destination:<asp:label id="DestinationLabel" runat="server" Text='<%# Bind("Destination") %>' /><br />
OutDate:<asp:label id="OutDateLabel" runat="server" Text='<%# Bind("OutDate") %>' /><br />
ReturnDate:<asp:label id="ReturnDateLabel" runat="server" Text='<%# Bind("ReturnDate") %>' /><br />
LeaveTime:<asp:label id="LeaveTimeLabel" runat="server" Text='<%# Bind("LeaveTime") %>' /><br />
ReturnTime:<asp:label id="ReturnTimeLabel" runat="server" Text='<%# Bind("ReturnTime") %>' /><br />
ContactNumber:<asp:label id="ContactNumberLabel" runat="server" Text='<%# Bind("ContactNumber") %>' />
<asp:linkbutton id="EditButton" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" />
<asp:linkbutton id="DeleteButton" runat="server" CausesValidation="False" CommandName="Delete" OnClientClick="return confirm('Are you sure you want to delete this record?');" Text="Delete" />
<asp:linkbutton id="NewButton" runat="server" CausesValidation="False" CommandName="New" Text="New" />
</ItemTemplate>
I want to make an conformation dialog on auto generated delete button in detail view that when user press delete dialog or conformation box appear that u sure u want to delete how can i do this?
View 1 RepliesI am using Sharepoint Designer and trying to insert a Delete button into a gridview. I added this to the top of my ASPX:
<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
Assembly="Microsoft.SharePoint, Version=11.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" %>
and I added this as a Gridview column:
<SharePoint:DeleteItemButton
runat="server"
ID="CustomFormDeleteItemButton"
ControlMode="Edit"
/>
and this is the error I get:
An error occurred during the processing of . System.Web.UI.WebControls.DataControlFieldCollection must have items of type 'System.Web.UI.WebControls.DataControlField'. 'SharePoint:DeleteItemButton' is of type 'Microsoft.SharePoint.WebControls.DeleteItemButton'.
I have a gridview with edit and delete parameters enabled. When I click on the edit link, I can edit the record successfully. However when I click on the delete link, nothing happens (the record does not get deleted).
View 5 RepliesI have a Gridview (VS2008 3.5) which has a Edit Button and a Delete button.he Delete button deletes the row without confirming deletion with the user first. ow can I use the Confirm/Delete Confirm from Ajax Toolkitif possible and if not, is there a way to Confirm/Delete with user firstwhen using Gridview?
View 6 Replies