Web Forms :: How To Find Control For A GridView Inside Panel Control
Apr 23, 2010
I am developing a asp database that is linked with SQL Database. When I am tryind to Find Control (GridView2) inside of another control (Panel2) that sits in Item Template for DetailsView, I got an error message:
Object reference not set to an instance of an object.
<asp:DetailsView ID="DetailsView1" HeaderText="Details" HeaderStyle-CssClass="labelheadRight" runat="server" AutoGenerateRows="False" DataKeyNames="pk_BackupDriveSerial"
DataSourceID="SqlDataSource1" GridLines="None"
CssClass="Detailsview" AllowPaging="True"
OnDataBinding="DetailsView1_OnDataBind"
OnItemInserted="DetailsView1_OnInsert"
OnItemDeleted="DetailsView1_OnDelete"
>
<Fields>
<asp:BoundField DataField="pk_BackupDriveSerial" ControlStyle-CssClass="dropdownsize"
HeaderText="Serial No" ReadOnly="True"
SortExpression="pk_BackupDriveSerial" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:BoundField DataField="BackupDriveMake" HeaderText="Make" ControlStyle-CssClass="dropdownsize"
SortExpression="BackupDriveMake" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:BoundField DataField="BackupDriveModel" HeaderText="Model" ControlStyle-CssClass="dropdownsize"
SortExpression="BackupDriveModel" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:TemplateField HeaderText="Type" SortExpression="fkid_BackupDriveTypes" ControlStyle-CssClass="dropdownsize"
Visible="False">
<EditItemTemplate>
<asp:Label ID="Label6" runat="server" Text='<%# Bind("BackupDriveMake") %>' Width="145px"></asp:Label>
<br />
<asp:TextBox CssClass="dropdownsize" AutoPostBack="true" ID="DropDownList5" runat="server" Text='<%# Bind("BackupDriveModel") %>' ></asp:TextBox>
<br />
<asp:Panel ID="Panel2" runat="server" CssClass="dropdownpanel" >
<asp:GridView CssClass="dropdowngrid" ID="GridView2" runat="server" AutoGenerateColumns="False"
CellPadding="4" DataKeyNames="pkid_BackupDriveTypes" SelectedValue='<%# Bind("fkid_BackupDriveTypes") %>'
DataSourceID="SqlDataSource3" ForeColor="#333333" GridLines="None" OnSelectedIndexChanged="GridView2_OnChange">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:BoundField DataField="pkid_BackupDriveTypes"
HeaderText="pkid_BackupDriveTypes" InsertVisible="False" ReadOnly="True"
SortExpression="pkid_BackupDriveTypes" Visible="False" />
<asp:BoundField DataField="BackupDriveMake" HeaderText="Make"
SortExpression="Make" />
<asp:BoundField DataField="BackupDriveModel" HeaderText="Model"
SortExpression="Model" />
<asp:CommandField ShowSelectButton="True" />
</Columns>
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#2461BF" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
</asp:Panel>
<asp:DropDownExtender ID="DropDownExtender2" runat="server" DropDownControlID="Panel2" TargetControlID="DropDownList5">
</asp:DropDownExtender>
</EditItemTemplate>
[Code]....
I also tried
[Code]....
View 5 Replies
Similar Messages:
Nov 21, 2010
I have a button inside a Panel. I'm trying to find the id of the button, but my code doesn't work:
protected void pnl_nocutomer_Load(object sender, EventArgs e)
{
Button btn;
[code]...
View 3 Replies
Dec 14, 2010
how can i use findcontrol to bind dropdownlist whidch is placed in item templated in gridview . my gridview is in update panel and my page has master page too.i want to bind my drodownlist in codebehind page.
iuse this code:
DropDownList DDL =
this.Master.FindControl("ContentPlaceHolder1").FindControl("UpdatePanel1").FindControl("GVProduct").FindControl("DDLProductGroupGrid")
as
DropDownList; but not works.
View 1 Replies
Jan 25, 2011
i've a fileupload control <asp:fileupload> called (UpImage) inside the <EditItemTemplate> called (dtlAlbums) of a <asp:DetailsView> which is inside a <asp:GridView> called (grdAlbums), when i use the below code to find the control (UpImage) i get an error at the RED line that, (Object not set to a reference of an object)
// code begins here
bool CheckFileType(string fileName)
{
string ext = Path.GetExtension(fileName);
switch (ext.ToLower())
[Code]....
View 8 Replies
Dec 1, 2010
I'm trying to find a TextBox in the code-behind page, it's inside a nested master page and also then inside another control container (it's inside ctrlCheckoutShippingAddress also) .
I've tried this:
[Code]....
[Code]....
View 2 Replies
Mar 23, 2010
how to find Textbox Control inside DetailsView Control Using Javascript, I tried below but gives an error OBject reference not found
document.getElementById('<%=DetailsView1.FindControl("TextBox1").ClientID%>');
View 3 Replies
Nov 10, 2010
I have on dropdown that show hide user control. In the user control i have Ok and Cancel button.
When the dropdown change i want to apply ValidationGroup on the Ok button that is inside UserControl.
View 2 Replies
Aug 18, 2010
I have databound GridView in my page and I have a hidden DIV in all rows. Each row contains a Button that I want it to make the DIV visible for me! how can I use that with jQuery?!
here is the code page: <asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False"
View 4 Replies
Jun 4, 2012
I have a gridveiw in which there is panal inside itemtemplate
I want to use this panel in by vb page. In type casting I use :
Dim Panel1 As Panel = CType(gridview1.FindControl("panel1"), Panel)
But it is not working............
View 1 Replies
Sep 20, 2015
I just want to open only one panel at a time., if we try to open second panel error message is return.
<script type="text/javascript">
function ShowPanel(btnAttendId) {
var btnAttend = $('[id$=' + btnAttendId + ']');
var row = $('[id$=' + btnAttendId + ']').closest("tr");
$(row).after("<tr><td colspan='999'>" + $('[id*=pnlTab]').html() + "</td></tr>");
$(btnAttend).hide();
};
[CODE]..
View 1 Replies
Nov 17, 2010
may i know how to find control inside Login View Control
i m usng following way
HyperLink lnktest = (HyperLink)loginView.FindControl("test");
but its giving me error that lnktest is null i.e object reference is not set to instance of object
View 3 Replies
Dec 20, 2013
I have a listview where inside Iitemtemplate one button and one label is placed.
I want to access the value of label on the click event of button.
View 1 Replies
Aug 18, 2015
I want to open asp panel inside gridview selected row and the panel is placed outside the gridview(above gridview) using javascript or jquery.
View 1 Replies
Mar 23, 2010
How do i create a simple web user control like Panel control (System.Web.UI.WebControls.Panel). you can drag any control inside the panel that already in the page that what i want.
View 5 Replies
Jan 7, 2011
how i can find a DataList which is inside the DataList control? Its giving the Error Object not set to an Instance. i am finding the control this way :
DataList dl =((DataList) (DataList1.FindControl("DataList2")));
View 2 Replies
Mar 15, 2010
i have a gridview control i added checkbox contrl dynamically but i am not getiing the reference of checkbox in button clilck event here is my code Gridvew
[Code]....
.vb code
[Code]....
View 6 Replies
May 1, 2010
I m New to asp.net,..
I wanted to find the Panel Control in the Content Page Of the master page,...
using "this.Master.Controls",..
Guide me there is some another way of finding the panel controls
Design code is
<asp:Content ID="Content3" ContentPlaceHolderID="head" runat="Server">
View 3 Replies
Jun 14, 2010
Hello all i have this little issue getting this to work, i have a dropdownlist in asp.net inside a formview and jquery cant find the control im guessing because its inside a form, this is what i got and it works on another page without a formviewi get this errorName 'Country' is not declared
[Code]....
View 19 Replies
Apr 9, 2010
I've created a multiple uploadfile user control - upload_multiple_files.ascx:
[Code]....
which has an update panel ID = up_upload_multiple_files this user control will be placed inside a modalpopupextender. My question is when I click in any button AddFile, RemvFile, Upload there's a postback so the page is reloaded and the modalpopupextender disapears Is there a way to to troubleshoot this?
View 8 Replies
Jan 25, 2011
I have a Listview that houses a FileUpload control. However, after using findcontrol the next line of code tries to convert the filename into a string and produces the familar error object reference not found.
Note: I have used identical code in a formview and it works fine.
Here's my relevent codebehind:
protected void AccessDataSource1_Inserting(object sender, SqlDataSourceCommandEventArgs e)
{
FileUpload FileUpload1 = (FileUpload)ListView1.FindControl("FileUpload1");
string Fupload = FileUpload1.FileName.ToString();
DateTime DateNow = DateTime.Now;
string DateNowSTR = DateNow.ToString();
string NewImageName = DateNowSTR + Fupload;
FileUpload1.SaveAs(Server.MapPath("~//images//" + NewImageName));
e.Command.Parameters["SponLogo"].Value = NewImageName;
}
View 3 Replies
Jul 8, 2010
I have a master page and content page and placeholders in one of the placeholders in the content page i programmatically add a custom control (with loads of controls inside it.) Basically once all te controls are populated i want click a submit buttom on the form and get all the vales from the controls in the cutom control.
View 16 Replies
Mar 4, 2011
I can't seem to find a textbox using FindControl. The textbox is located inside an asp:Table, asp:Table is inside a UserControl and I load the usercontrol into the parent page.
View 5 Replies
Jun 30, 2010
How can i set the value of literal control inside itemtemplate control of gridview from code behind ?(i am using vb.net)
View 1 Replies
Sep 20, 2010
I want to find control inside datalist, i am using this:
((Image)DataList1.Items[0].FindControl("Image1")).Visible=true;
//here got error:
Index was out of range. Must be non-negative and less than the size of the collection.
here is my aspx code:
<asp:DataList ID="DataList1" runat="server" DataKeyField="nsid">
View 4 Replies
Jul 23, 2012
I am integrating a Captcha control inside a CreateUserWizard. As I wanted to do a validation for user's input based on the Captcha using an if.. else.. statement. However an error occured when I trying to get the Captcha control from the createuserwizard. Here the is error : The name 'Captcha1' does not exist in the current context.I had tried to get this control as a textbox, image, control but it was not successful. Here is the code :
<asp:CreateUserWizardStep ID="CreateUserWizardStep1" runat="server">
<ContentTemplate>
<tr>
<td class="style4">Answer:</td>
<td>
<cc1:CaptchaControl ID="Captcha1" runat="server"
[code]....
View 1 Replies
