Web Forms :: Unable To Use The Control As A MetaTextBox
Dec 21, 2010
I have a user control the exposes several public properties. I added a reference to the usercontrol to my page and I added an instance of the control:
[Code]....
One of the properties exposed by my control is called "Text". I have used this control in many different projects and I am ordinarily able to do this:
string x = mtPrintPlatform.Text;
However in this project I am unable to use the control as a MetaTextBox...I only see the properties of UserControl, from which MetaTextBox is derived. So my Text property is not accessable.
I am, however, able to cast the control and access the property like this:
string x = ((MetaTextBox)mtPrintPlatform).Text; // this works
This problem occurs with all user controls in my project, I am using just one control as an example.
I have a tab which loads a usercontrol dynamically and this usercontrol has 2 other usercontrols. One on the left loading treeviewA and one on the right treeviewB.I am using update panel for aspx and the ascx too. But, I am not able to control to page state and moreover when I click on one control, it get its child item, by the time I click on other control, it would refresh other control too and will lose its value.I am using below code in aspx and I have embeded update panels in usercontrols too
using http://msmvps.com/blogs/luisabreu/archive/2006/11/16/adding-removing-updatepanels-dynamicaly-from-a-page.aspx as reference
Am using a ascx page i want to add a textbox control but its giving me the error like " Control 'TopFront1_TextBox1' of type 'TextBox' must be placed inside a form tag with runat=server.
I have a panel and am loading a user control into it. I am trying to set its Visible property to true. But when I say controlFoo.Visible = true, it is not becoming visible. When I add a watch to controlFoo.Visible, it shows False.I have already made sure that its parent control's visbility is set to true. My code is as follows:
I have 2 - DropdownList controls, which i am filling at severside when page loads. After the user selection in DropdownList1, i am changing the contents in DropdownList2 values. This validation (i.e. changing the contents of Dropdownlist2 values) am doing in Javascript Clientside. But on postback i am not getting the values in DropdownList2. When i say "DropdownList2.Items.Count;" getting "0". I tried to put the contents of DropdownList2 in ViewState on pageload. But i am getting Serialization error at runtime "Viewstate["PersistValues"] = DropdownList2;". I am using html input hidden control to pass the values from server side to clientside for my validation. Now, to meet this requirement i am Binding the DropdownList2 at postback again with first DropdownList1's selected index (This is repeat of logic which i have done in Clientside).
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..
I am using asp.net 3.5 with C# to build web application. I am using master pages. I had a label in masterpage. I want to set some text in that label from content page. I have written following code for that
I'm trying to programmatically set the property of a control on my Form AFTER I've proccessed an update command using the FormView, but it's not working. In my example below, I have a basic FormView with only a TextBox and Label in its EditItemTemplate. The FormView uses an AccessDataSource. The TextBox is bound to the datasource, but the label is not. What I'm trying to do is update the value in the TextBox (as well as its associated data stored in the database), and then change the Text property of the Label. (*Note: that I using the label purely as an example. The point is I can't see to set any control's property after an update).
I initally thought it had something to do with the "Page.IsPostBack", but even after trying to adjust my code for that, its still not working. I've tried change the Text property during the Page.IsPostBack during Page_Load event. I've tried setting the Label's EnabledViewState property to True and to False. I've tried using the FormView's OnItemUpdating and OnItemUpdated events. I've tried using the DataSource's OnUpdating and OnUpdated events.
I don't seem to be able to set the Text property within this custom control. Even though I set the Text property in code-behind, when I refresh the web form, only the default message is shown.
my problem i have defined style sheet for menu and built a user control which was placed in Control folder, but images are not displayed in the menu when the run the product/sart.aspx, but they appear in Default.aspx
I am developing a project in ASP.Net and C#. As per its requirement I have used CreateUserWizard control in FormView's InsertItem template to register a School just like a user registration to get rid of writing the code manually to register a schnool.
well, in CreateUserWizard control there is not any textbox control named username in its content Template because I have no need of this.
when I run this page I get following error.....
[Code]....
how to fix this?
I dont want, indeed I dont need, the username text field that's why I have removed this.
I have customized this control as per my requirements hence few default fields have been removed like username textbox field, therefore it may result more errors when I fix first one.
i have created a form and organize fields on asp table , row and cell..
then i am putting my controls (dropdownlist, textboxes,,,etc) in different table ow cells
The thing is when i try to select the control in design mode .,.it select automatically the table i tried to select the control in asp code but it does not give me control on it in design mode..wiered..
How can i view my controls in design mode..in other terms how can i select my controls in design mode.
Protected Sub DataList1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles DataList1.ItemDataBound lblshippingoutside.Visible = Dim lblshippingoutside As Label = CType(e.Item.FindControl("lblshippingoutside"), Label)False End Sub
Throws an exception .
Object reference not set to an instance of an object.
I have a dynamically created address user control (on a customer administration screen) that is created through the use of a place holder. A customer can have multiple addresses, so they dynamically dropped onto the page.
I have got this far, but now I need to be able to save the updated addresses for the customer but I can't get any event to fire on the user controls. When I check to see run plhAddress.HasControls() it returns false?
The way I am generating the user controls is as follows.. private UserControl LoadControl(string UserControlPath, params object[] constructorParameters)
This has got me stumped. I am trying to find a checkbox in a dynamically loaded asp.net Repeater template. The template works fine and the databinding is fine and everything displays fine but I can't find the control!
This is the repeater code (I have a similar one for the alternate template with a different style):
I am unable to find any control in row editing event of gridview that i have put in edit template. I have to populate the dropdown control so that in editing the user can select value from the control.
How ever i can access the controls in row updating .But i need it in row editing event.
I've seen this before, I fixed long time ago and now cannot remember how I did :) My store procedure won't update the record because the sql field 'itemId' is being passed as ZERO always.
I have GridView control and assosiated DetailView control.
When the record form GridView is seleted, I am showing the details on DetailView.
I have set the Auto generated delete button to true. And now I want to delete the record when someone clicks the Delete button from DetailView control.
