Databound DataField Not Getting Populated?
Nov 1, 2010
I'm currently analyzing the code behind for a web application. The Default page contains a GridView with several bound DataFields that are supposed to be populated, when the page loads and reloads, with data based on a URL parameter that's passed on initial load. The way it works in summary is this:
-I have a GridView1_Init method that is called when the page loads, this retrieves data using an OldDbConnection and a URL parameter appended as part of the OleDbCommand SQL statement.
-The data is read and stored in the Web.config file. At this point, when debugging, I can see and verify the there is data being retrieved.
-Now I'm calling a GridView1_RowDataBound method to populate each row. I have it in the Default.aspx page within the GirdView parameters as OnRowDataBound="GridView1_RowDataBound"
My problem is that this method never gets called for one of the URL parameters I'm passing and as a result the Databound rows in the GridView don't get populated and the page displays nothing. I have another URL parameter I use to test and it works perfectly with that one, i.e. the page loads with the Gridview displaying all the data as expected. I'm not sure why the method GridView1_RowDataBound is getting called for one URL parameter, but not for the other. I've debugged using both and also ran the query in SQL Server Management Studio and I am getting data back for both.
View 2 Replies
Similar Messages:
Jan 3, 2011
I am using three listviews on a page ... the first is always populated ... the other two are sometimes populated I want to total amounts and counts from all three ... so I set up steps in the DataBound events works great when all three listviews are populated the error "Object Variable or With block variable not set." occurs when LV2 or LV3 is not populated I've tried testing DataItem ... Is Nothing but get the failure on the If test instead
View 3 Replies
May 10, 2010
i have a FormView, and i already have a Label control that gets the value of theselected propery inside the FormView, so each time the FormView displays data, i have a Label control that displays individual values, according to the value of the FormView, here is the code:
[code]....
What i would like to do is to know how i could add a DataList instead of a Label, and then each time the FormView databinds an item, to show the value of the DataList How would i go about doing that?
View 10 Replies
Dec 7, 2010
I want to render something like this (with ASP.Net Controls in the codebehind):
<ul>
<li class="first"><h1>This is a caption</h1></li>
<li><a href="#" title="" target="_self">Foo</a></li>
<li><a href="#" title="" target="_self">Foo1</a></li>
<li><a href="#" title="" target="_self">Foo2</a></li>
<li><a href="#" title="" target="_self">Foo3</a></li>
<li><a href="#" title="" target="_self">Foo4</a></li>
</ul>
<ul>
<li class="first"><h1>This is a another caption</h1></li>
<li><a href="#" title="" target="_self">Foo5</a></li>
<li><a href="#" title="" target="_self">Foo6</a></li>
<li><a href="#" title="" target="_self">Foo7</a></li>
<li><a href="#" title="" target="_self">Foo8</a></li>
<li><a href="#" title="" target="_self">Foo9</a></li>
<li><a href="#" title="" target="_self">Foo10</a></li>
<li><a href="#" title="" target="_self">Foo11</a></li>
</ul>
The amount of li elements that will be rendered into each ul is determined at runtime. Each link in a li belongs to into a specific ul (the one containing a specific caption. Imagine this as a kind of a treeview with nodes and subnodes) During the bind Event I need access to an ASP:HyperLink that will be rendered into the a-element. Which databound ASP.Net control should I pick for this? Looks like a repeater in a repeater, which should make the databinding process ugly. I'm thinking about creating this HTML-Output with StringWriters myself.
View 1 Replies
Aug 16, 2010
I would like to find the Datafield Value in boundfield and set it to visible - false. I want to find the "ReceivPrice" DataField and it to visible after any conditions.
<asp:BoundField DataField="ReceivPrice" HeaderText="Price" SortExpression="ReceivPrice" ReadOnly="True" DataFormatString="{0:N4}" HtmlEncode="False">
<HeaderStyle Width="12%" HorizontalAlign="Right"/>
<ItemStyle HorizontalAlign="Right" />
</asp:BoundField>
View 7 Replies
Aug 23, 2010
My code below has a drawback. The scenario is this, i have two user roles - Approvers and Encoders. The encoders are not allowed to view the price only the approvers. Using the code below, i can now hide the Price column. but the problem is, when the encoder modified the quantity column, the Total Amount (Quantity * Price ) is zero. Giving zero value for price. When the approvers view the transaction,the Total Amount is zero. Is that really the possible thing to happen when hiding a datafield?
HTML Code:
For Each colField As DataControlField In colFields
If TypeOf colField Is BoundField Then
Dim bField As BoundField
bField = CType(colField, BoundField)
If bField.DataField = "ReceivPrice" Then
bField.Visible = False ' Hide Price Column
End If
End If
Next
View 13 Replies
Mar 31, 2011
Let's say I have a DataGrid that looks something like:
<asp:DataGrid ID="SomeDataGrid"
runat="server">
<Columns>
<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="Data"></asp:BoundColumn>
</Columns>
</asp:DataGrid>
In this Grid, I set the datasource to some collection that contains a public property called "Data" and do a databind(). Every works as expected.Now let's say I want to set the DataField attribute of the column to a public member, or a property, or some other thing I've computed. What is the easiest way to go about this without creating intermediate objects or adding public properties to the objects in the collection?So what I want to do is something like:
<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="someMethod()"></asp:BoundColumn
View 1 Replies
Nov 17, 2010
search for a item, display the results in a datagrid, have a LinkButton (per item in the datagrid) to show a popup modal and insert this data to a new table. I have the search, the datagrid, and popup modal all working. I need help with the add button in the popup modal (which insert into a new table in the db). In my datagrid im using DataFields - how would I get access to this in the codebehind so I dont have to re-query the db again for the ID that i'm trying to insert?
View 5 Replies
Mar 8, 2011
I have a textbox which displays the date as 01-May-2011 but the database coumis in format of datetime ... how to enter date in date time column of database. ..how to wite the sqlquery for this ?
View 5 Replies
Nov 7, 2010
Such as in the where clause of an update statement in code behind?
View 7 Replies
Jan 19, 2010
I have a dropdown list with hard coded values:
<asp:ListItem Text="One Day Shoots" Value="1" />
<asp:ListItem Text="Multi-day Shoots" Value="2" />
I want to use this to insert and edit values from a db. For example when adding a record the user selects 'One Day Shoots' and 1 gets inserted into the database. Then if the user goes to edit the page since the value in the db is 1 then the 'One Day Shoots' is selected.
One way I considered accomplishing this was by using a hidden feild - when the user selects something in the dropdown list the field is updated with the value, then when the user actually adds the record the value in the feild is submitted. I'm pretty sure this would work but is there a better way?
View 3 Replies
Jun 24, 2010
I have a gridview where I have TemplateField and I have bind with Coulmn Name. In Run time I would like to change the coulmn name but I am getting error.
[Code]....
View 4 Replies
Jun 29, 2010
I have a bound field in a DetailsView that I want updated with the contents of TextBox2.Text when I update. I have TextBox2 set AutoPostBack True. Cannot remember how to move the contents on update. I tried converting the "Description_Update" to a template field without success.
I can copy and paste the contents of TextBox2 into the DetailsView and it does update as do the other DataFields.
<asp:TextBox
ID="TextBox2"
runat="server"
Height="80px"
TextMode="MultiLine" Width="360px"
Font-Size="Small"
MaxLength="120"
Text=""
Font-Names="Calibri" AutoPostBack="True"></asp:TextBox>
<asp:BoundField
DataField="Description_Update"
HeaderText="Descrip"
SortExpression="Description_Update"
/>
Do I need to use adn Eval or DataBind function or both. I have triued several combinations and do nothing but continue to butcher the database tables.
View 11 Replies
May 26, 2010
I want to bind the datafields of the gridview to the linkbuttons.
In a column i want to display the links.
I have created gridview dynamicaly.
View 4 Replies
Mar 20, 2011
I am wondering if its possibl to change the DataField value of the asp:BoundField in the code behind.aspx page:
[Code]....
I would like to change DataField="From" to DataField="To" before I call the GridView.DataBind.Please let me know if this is possible and if so how can I do it.
View 3 Replies
May 30, 2012
I have one gridview with two columns.. I am fetching data which is like invno, invno, invno, invno, invno, invno, invno, invno,.......... in one column.. but problem is when ifetch more data its Growing Across Gridview and Table.. i used following code
<td align="left" width="100%">
<asp:GridView ID="GridView1" runat="server" Width="100%"
AutoGenerateColumns="False" BackColor="White" >
<Columns>
<asp:BoundField DataField="lblInvoice" HeaderText="Invoice(s)" />
<asp:BoundField DataField="lblTotal" HeaderText="Total" />
[Code] ...
View 1 Replies
Feb 4, 2010
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]....
View 2 Replies
Feb 1, 2010
There are a few posts on the site about how to order by using lambda expressions however I cannot seem to get mine to work. I am trying to reorder a list that is already populated. Am i wrong in thinking that i can rearrange the order of this list using lambada expressions?
QuarterMileTimes.OrderByDescending(c => c.PquartermileTime);
I was wondering if it's down to PquartermileTime being a string? I also tried this expression on a date
QuarterMileTimes.orderBy(c => c.RaceDay);
View 5 Replies
Nov 10, 2010
I've been scouring the forumsa and tutorials and I think I'm close. I'm trying to collect the username ofthe user connecting to the webapage (this is an intranet app). My confusion is where you put what. On the default.aspx.vb I have a proteced sub page load and I have this code in it:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
' Get the Logged on user
' Make sure Anonymous is not checked in IIS Manager
' otherwise this may be empty
[Code]....
I tried to collect to @Logon_User but the username is never populated. I have anonymous access unchecked and windows authentication checked, I have <authentication mode="Windows"/> in my web.config.
View 1 Replies
Feb 7, 2012
i have a dropdown in a div which is toggeld visible true false the dropdown is populated with data on page load (is not postback) but is visible false when i click a button to make the div with dropdown visible true the div with dropdown appreas but the dropdown doesnot conatin data.
View 1 Replies
May 28, 2010
I have a web user control with a dropdown that is populated from a SQL table:
[Code]....and then the .cs
[Code]....
Catalog Access:
[Code]....
I can give the rest of the GenericDataAccess if that will help, but here's the problem; When I run a web page with this control, all the dropdown items are 'System.Data.DataRowView'I'm sure there's some obvious stuff I'm missing but I'm new to populating dropdowns.
View 5 Replies
Sep 27, 2010
i'm using jQuery to populate an cascading dropdownlist. But i want to set a selected item after jQuery filled the DDL with items.
View 20 Replies
Jul 26, 2010
I have a textbox located at the upper left of my page and a gridvew located at the upper right. However though, once my gridview is populated with data, I noticed my textbox moves from the upper left to the middle left of the page. i am trying to fix thisproblem and do not fully understand how to.
View 2 Replies
Jan 31, 2011
I have a form in MVC3 that includes a check box to copy data if it is the same as a previous form. If the checkbox is checked, it populates the text box with the content from the hidden field. Here's a sample to illustrate what I'm doing:
[Code]....
When the box is checked, it calls FillInfo(), which uses DHTML to fill the TextBox called "ThisInfo" with the value of the hidden field "DefaultInfo."
Here's the problem: if the form fails validation (e.g. "ThisInfo" is a required field and is left blank), the hidden "DefaultInfo" box is getting cleared out -- which I DON'T want it to do. As a result, when the checkbox is clicked, it is copying empty data into the "ThisInfo" field.
View 8 Replies
Nov 16, 2010
I have tried a lot and have reached a dead end.
I have a to show multiple gridviews on one page and all these are getting populated dynamically.
i have figured a way to populate the gridview dynamically and display them, but i cannot get how to modify these values and display them as i want.
here is the code. for .aspx page
[code]....
View 3 Replies
