Web Forms :: Find Controls Inside Custom Control?
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.
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Similar Messages:
Dec 24, 2010
here's a situation and I would appreciate your response.
I have programmatically created the Wizard control:
Page_Load(obj s, evargs e)
{
Wizard ClaimDetailWizard = new Wizard();
foreach(int item in selectedItems)
{
//create new step
//added custom control to new step
//add step to wizard
}
//added wizard to a placeholder on a page
}
Based on List I get from Session i added new steps to my wizard To each step I had added a custom control
Each custom control in tern contains another custom Gridview Control in it.
So here's the problem when the page loads for example for two steps. All is good Wizard does what it's supposed to do.
But when I try to use sorting or paging in that custom Gridview. Somehow it displays the gridview I should see in the next step of the wizard.
Also what I'm noticing through debugging. Is that when I press next in the wizard I go back to the original page where I do all of the code specified above, and it recreates the wizzard. But it goes to the next step. Is this the way wizard supposed to work? Just doesn't seem very efficient.
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Jan 11, 2011
I am writing a custom control and implementing ITemplate in it. The code that I am using can be reviewed at the following link: http://msdn.microsoft.com/en-us/library/ms178657.aspx
Under the Template field, I would only like to allow controls of specific type only, say LinkButton and TextBox. If any control(s) present inside Template is anything except LinkButton or TextBox, an error should be thrown. I am wondering how can I check it programmatically inside custom control. The problem is that there is no collection available that lists all the controls that of Template (or may be I am not aware of it.)
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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">
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Feb 8, 2010
Iam finding the button control which is inside the Footer Template of Data list control.
i tried the below code but it is not working suggest me where iam doing wrong or how i find the control avaiable in footer template of Data list.
Here is my code
[Code]....
iam using the above code on button click
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May 26, 2010
I am having a list view in the page and one button outside the listview.
Listview is consisting of a usercontrol which is text box.
i want to find textbox usercontrol in the button click event.
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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]....
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Sep 8, 2010
I have an ASP.NET custom control with several asp:panel controls that have various questions for users in them. When the control loads I need to set a Session object to the default panel (first question). This worked when I had the objects and code in a web form, but I moved them to a custom web control, and now when I try to access that control in the Load event of the custom control it says the default panel control is null. It seems that the controls are not created when the Load event is firing. Evidently the order of loading controls is different between web forms and custom controls. Can someone explain to me where the controls inside the custom control will become available to use?
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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.
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Dec 1, 2010
I am writing a custom control by inheriting "Control".
I wany the custom control to have multiple control nested inside it i.e. my custom control can have other controls in it.
How can I do it, would I have to implement any interface or what.
At the end, I want the code to look something like this.
[Code].....
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Nov 19, 2010
i am using the multiview control inside a page and i am trying to find a control using the javascript function document.getElementById. My Problem is that the function returns null cause it cannot find the control. When i open the code of the page from the browser the active view is not rendered so I think thats the reason why I am getting a null value from the function.
On the HTML code is rendered only the first view or the view that is activated on page load.
Is there any way to find a control inside the view using javascript? or I am doing something wrong?
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Aug 19, 2010
I have used calender web user control inside my project where i took textbox,button and calender...but after dragging onto my aspx page..i am unable to access this textbox,calender and button on aspx page..
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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]....
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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]....
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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%>');
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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.
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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]....
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Jan 15, 2014
I have a user control with a textbox. I am loading it at runtime on parent page with code behind.After click of button on a parent page i need the text of that usercontrol's textbox.
I tried with following code but it does not work for me
myusercontrol us = new myusercontrol();
TextBox textbox = (TextBox)us.FindControl("txtusercontrol");
string str = textbox.Text.ToString();
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May 7, 2015
How to find the asp image control inside DataListView using JavaScript.
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Aug 12, 2010
I want to use an image inside a Custom Web server control! Do I need to use Web.resources ? if so , how to do ?
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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;
}
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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.
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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]....
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Aug 3, 2012
I tried to get the LoginName control inside LoginView LoggedIn template , despite several methods, the code still could not work.
I wished to change the default username to the customer name.
Here is the code:
<asp:LoginView ID="LoginView1" runat="server">
<LoggedInTemplate>
Hello, <asp:LoginName ID="LoginName1" runat="server"></asp:LoginName>
<br />
<div style="text-align: right; margin-right: 5px ">
<asp:LoginStatus ID="LoginStatus1" runat="server" LogoutPageUrl="~/Home.aspx" Font-Underline="True" />
</div></div>
</LoggedInTemplate>
</asp:LoginView>
At the code behind :
protected void Login1_LoggedIn(object sender, EventArgs e) {
LoginName loginName = LoginView1.FindControl("LoginName1") as LoginName;
Response.Write(loginName.ToString()); //for now I used Response.Write for testing purposes
}
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Jan 29, 2010
I am trying to create strogly typed datasets for my project. When I right click on the xsd file that I need to generate a strongly typed dataset for I can't find the 'Advanced' properties as described in the below article (almost half way down)[URL]As I do not see the Advanced properties option I can't find the 'Custom Tool' property/option to set its value to 'MSDatasetGenerator'. Do I have to install some kind of patch on my VS 2005?
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