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When attempting to use the NumericTextBoxFor it throws a "System.NullReferenceException: Object reference not set to an instance of an object." in regards to line #107 in NumericTextBox, the rendererFactory is null!
Here is the code snippet:
Here is the code snippet:
<%: Html.Telerik().NumericTextBoxFor(model=>model.Date2).Name("Date").MinValue(0).MaxValue(40) %>Date2 is defined as "public byte Date2 { get; set; }". I had originally been using "public byte? Date2 { get; set; }" and thought that might be the issue, but its not.
This is being used in a pretty plain jane test page. Not sure why its not passing your tests.
Below is the stack trace.
at Telerik.Web.Mvc.UI.NumericTextBox`1.WriteHtml(HtmlTextWriter writer) in D:\Programming\Projects\DotNet4.0\Telerik_Extensions_for_ASPNET_MVC_2010_2_825_OpenSource\Source\Telerik.Web.Mvc\UI\TextBox\NumericTextBox.cs:line 107 at Telerik.Web.Mvc.UI.ViewComponentBase.ToHtmlString() in D:\Programming\Projects\DotNet4.0\Telerik_Extensions_for_ASPNET_MVC_2010_2_825_OpenSource\Source\Telerik.Web.Mvc\UI\ViewComponentBase.cs:line 208 at Telerik.Web.Mvc.UI.ViewComponentBuilderBase`2.ToHtmlString() in D:\Programming\Projects\DotNet4.0\Telerik_Extensions_for_ASPNET_MVC_2010_2_825_OpenSource\Source\Telerik.Web.Mvc\UI\ViewComponentBuilderBase.cs:line 143 at Telerik.Web.Mvc.UI.ViewComponentBuilderBase`2.ToString() in D:\Programming\Projects\DotNet4.0\Telerik_Extensions_for_ASPNET_MVC_2010_2_825_OpenSource\Source\Telerik.Web.Mvc\UI\ViewComponentBuilderBase.cs:line 148 at System.Convert.ToString(Object value, IFormatProvider provider) at System.Web.HttpUtility.HtmlEncode(Object value) at ASP.views_campaign_test_aspx.__RenderContent2(HtmlTextWriter __w, Control parameterContainer) in d:\Programming\Projects\DotNet4.0\thZero.RPG.Website\Views\Campaign\Test.aspx:line 13 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.Control.Render(HtmlTextWriter writer) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer) at ASP.views_shared_page_master.__RenderContent2(HtmlTextWriter __w, Control parameterContainer) in z:\Chris\Temp\Temporary ASP.NET Files\root\e9483103\9b2cb3bc\App_Web_page.master.639c3968.iz5hkkgx.0.cs:line 0 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.Control.Render(HtmlTextWriter writer) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer) at ASP.views_shared_site_master.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in z:\Chris\Temp\Temporary ASP.NET Files\root\e9483103\9b2cb3bc\App_Web_site.master.639c3968.ee69ghhe.0.cs:line 0 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.Control.Render(HtmlTextWriter writer) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer) at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.Control.Render(HtmlTextWriter writer) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer) at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.Page.Render(HtmlTextWriter writer) at System.Web.Mvc.ViewPage.Render(HtmlTextWriter writer) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)2 Answers, 1 is accepted
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nathan
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answered on 21 Oct 2010, 08:53 PM
i had this same issue when attempting to use the numerictextboxfor helper in a "create" view. i was returning the view without passing a model, and that was the issue. try passing in an empty model to your view and see if that fixes it.
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Chris
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answered on 21 Oct 2010, 09:18 PM
Why would I pass an empty model to my view? That only solves your one "create" view case.