RadInputManager in code

[Ricardo Fonseca]

I want to create a web control that has a RadInputmanager , and i am having the follow exception .

[NullReferenceException: Object reference not set to an instance of an object.] System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +219 System.Web.UI.Page.FindControl(String id) +38 Telerik.Web.ChildControlHelper.FindControlRecursive(Control searcher, String ID) +68 Telerik.Web.UI.RadInputManager.PopulateInputCollection() +401 Telerik.Web.UI.RadInputManager.OnPreRender(EventArgs e) +454 System.Web.UI.Control.PreRenderRecursiveInternal() +90

here is the base code
   private RadInputManager inputManger = new RadInputManager();
        private TargetInput target = null;
        CPFTextString cText = new CPFTextString(); // ibased om  public class CPFTextString : RegExpTextBoxSetting
        public CPFControl()
            : base()
        {

        }

        protected override void OnInit(EventArgs e)
        {
            
            target = new TargetInput(cBox.ID,true );
            cText.TargetControls.Add(target);
            inputManger.InputSettings.Add(cText);
            Controls.Add(inputManger);
            base.OnInit(e);
        }

[Iana Tsolova]

Hello Ricardo,

Could you please try first adding the RadInputManager to the controls collection and then adding target inputs for its setting? Give it a try and let me know if it makes any difference.

All the best,
Iana
the Telerik team

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