Add Control In Datalist At Run Time?
Sep 2, 2010I want to know that how i can add the Linkbutton in Datalist in ItemTemplate at run time in the DataBound Event.
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For example in the following code, dlii value is null, even though dli != null.
DataList dli = (DataList)Page.FindControl("DL_Pro_Result");
DataList dlii = (DataList)dli.FindControl("DL_Gro_Result");
<div id="ProList">
<asp:DataList ID="DL_Pro_Result" runat="server">
<HeaderTemplate>
<table id="T_Pro_Result_Header" runat="server">
<tr>
<td>
<asp:Label ID="L_Pro_Result_Header" runat="server"></asp:Label>
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table id="T_Pro_Result_Item" class="table" runat="server">
<tr>
<td>
<asp:Label ID="L_Pro_Result_Item" runat="server"></asp:Label>
<asp:Button ID="B_Pro_Result_Item_1" OnClick="B_Pro_Result_Item_1_Click"/>
</td>
</tr>
<tr>
<td>
<asp:DataList ID="DL_Gro_Result" runat="server">
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Oct 5, 2010I want to know is this possible that we can set the RepeatColumns value at run time on Data Bound Event.
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[Code]....
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Code:
decimal time_taken_total;
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e) {
if(e.Item.DataItem!= null) {
time_taken_total += Convert.ToDecimal(DataBinder.Eval(e.Item.DataItem, "Timer"));
[code]...
Unable to cast object of type 'System.TimeSpan' to type 'System.IConvertible'. An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System .Invalid CastException: Unable to cast object of type 'System.TimeSpan' to type 'System.IConvertible'.Source Error:
Line 25: if(e.Item.DataItem!= null)
Line 26: {
Line 27: time_taken_total += Convert.ToDecimal(DataBinder.Eval(e.Item.DataItem, "Timer")); Line 28: }
Line 29:
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Mar 9, 2011I am using calendar extender and time picker control. When I click insert in my application, my date is going into my database but my time is not going from my time picker control into my database.
Do I need another column for my time picker control ?
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May 7, 2015how do i give the individual total time?
Means if i have a person name asim which is working on project and on same project he start n stop time (2 time) so how can i calculate the total time of only that person on that particular project ?
This is my asp.net code
Data Controls :: Calculate Individual Time Of User And Display In DataList Footer
Jan 28, 2014How do I give the individual total time?
Means if i have a person name asim which is working on project and on same project he start n stop time (2 time) so how can i calculate the total time of only that person on that particular project ?
This is my asp.net code
<ItemTemplate>
<strong>Name:</strong>
<asp:Label ID="NameLabel" runat="server" Text='<%# Eval("Name") %>' />
<br />
<br />
<strong> JobNumber:</strong>
<asp:Label ID="JobNumberLabel" runat="server" Text='<%# Eval("JobNumber") %>' />
[Code] .....
Forms Data Controls :: Finding DropDownList Control Within DataList Control?
Dec 6, 2010Finding DropDownList Control Within DataList Control?
[Code]....
[Code]....
<asp:LinkButton ID="AddBtn" runat="server">Add Committee</asp:LinkButton>
</FooterTemplate>
</asp:DataList>
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Sep 2, 2010Am not sure why I cannot access my Label control which was inside the Panel and the Panel is inside the DataList
[Code]...
but when I tried using "lbl" in Page_Load, it seems it cannot find the control?
[Code]....
that code returns Object reference not set to an instance of an object.
[Code]....
output:
panel does not exist
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Cannot create an object of type 'System.Web.UI.WebControls.FormView' from its string representation 'FormView1' for the 'HeaderControlName' property. However, if i don't assign FormView1 in design screen and manually (through coding) assign FormView1 to the custom control on init, it works as expected.
custom control
public class CmdTest : CompositeControl
{
public virtual FormView HeaderControlName
{
get
{
object oObject = ViewState["HeaderControlName"];
return (oObject == null) ? null : (FormView)oObject;
}
set
{
ViewState["HeaderControlName"] = value;
}
}
protected override void CreateChildControls(
{
Controls.Clear();
Button xx = new Button();
Controls.Add(xx);
}
}
webpage.aspx (assign FormView1 in design time, it will generate error)
<Utils:CmdTest ID="CmdTest1" runat="server" HeaderControlName="FormView1" />
webpage.aspx (didn't assign FormView1 in ASPX, but assign it on Init Code, it works)
<Utils:CmdTest ID="CmdTest1" runat="server" oninit="CmdTest1_Init" />
Webpage.aspx.cs
protected void BsCmdTest1_Init(object sender, EventArgs e)
{
CmdTest1.HeaderControlName = FormView1;
}
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<table>
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Feb 10, 2011I have a datalist and a hyperlink control that holds a url. A user creates this datalist through an admin website and not all of the hyperlinks have a link in them. The issue is how to hide the link that doesn't have a url in the database field.
code for the datalist:
<asp:DataList ID="dtlPromoEvents" runat="server" CellPadding="2" CellSpacing="2" RepeatColumns="1" RepeatDirection="Vertical" RepeatLayout="Table" >
<ItemTemplate>
<asp:Label ID="lblPromoHeading" runat="server" Text='<%# Eval("eventHeading") %>' Font-Size="12pt" ForeColor="#FFFF00" />
<br />
<br />
<asp:Label ID="promoDate" runat="server" Text='<%# Eval("eventDate", "{0:D}") %>' Font-Size="11pt" ForeColor="#33FF00" /> <span style="color: #33ff00; font-size: 12pt">@</span> <asp:Label ID="lblPromoTime" runat="server" Text='<%# Eval("startTime", "{0:t}") %>' Font-Size="11pt" ForeColor="#33FF00" />
<br />
<br />
<asp:Label ID="lblPromoDetails" runat="server" Text='<%# Eval("eventDetails") %>' Font-Size="11pt" />
<br />
<br />
<br />
<asp:HyperLink ID="eventLink" Text="Check this out!" CssClass="linkEvent" Visible="false" runat="server" Target="_blank" ToolTip="click to go check out what's happening!" NavigateUrl='<%# Eval("eventLink") %>' />
<br />
<br />
<br />
<hr style="width: 480px; height: 1px; background-color: #ff9900; border-color: #ff9900" />
<br />
</ItemTemplate>
</asp:DataList>
In the code behind I set the datasource with code and now I am stumped on how to reach into the items and control the visibility of the 'check this out' link based upon whether the db field has a link in it or not.
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
dtlPromoEvents.DataSource = LoadEvents();
//filter through the events and turn on visibility for the events that have a live link.
dtlPromoEvents.DataBind();
}
}
public static DataSet LoadEvents()
{
DataSet eventInfo = new DataSet();
string connectionString = ConfigurationManager.AppSettings["ConnectBeerGeeksDb"];
using (SqlConnection selectConnInfo = new SqlConnection(connectionString))
{
SqlDataAdapter adapterInfo = new SqlDataAdapter("SELECT [eventDate], [startTime], [eventHeading], [eventDetails], [eventLink] FROM [promoEvent] WHERE (eventDate + 1 > GETDATE()) ORDER BY eventDate", selectConnInfo);
selectConnInfo.Open();
eventInfo.Clear();
adapterInfo.Fill(eventInfo);
selectConnInfo.Close();
}
return eventInfo;
}
Adding the refined code that works on this url: [http://beergeekspub.com/events.aspx][1]
protected void dtlPromoEvents_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// Retrieve the Hyperlink control in the current DataListItem.
HyperLink eLink = (HyperLink)e.Item.FindControl("eventLink");
// Check if a URL exists, if not then hide the control
if (string.IsNullOrEmpty(eLink.NavigateUrl))
{
eLink.Visible =false;
}
}
}
also the page load databinds the datalist -
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
dtlPromoEvents.DataSource = LoadEvents();
dtlPromoEvents.DataBind();
}
}
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ADO.NET :: Bind Linq To Datalist Control?
Mar 30, 2011I have created a Linq Function and want to bind with DataList control but getting and error below is Error and code
[Code]....
dtlIfmembers.DataSource = objBLL.GetRandomFedImage()
dtlIfmembers.DataBind()
Error :
An invalid data source is being used for dtlIfmembers. A valid data source must implement either IListSource or IEnumerable.
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how to make this code workin ?
Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
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I tried to use FindControl() but still have error ("
Object reference not set to an instance of an object.
")
this is my code (
string id = ((HiddenField)DataList2.FindControl("hfID")).Value;
)
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