Asp.Net Programming :: Can't access to web control textbox property


	Can't access to web control textbox property Hi, I built a web control wich has text box and public property that set or get the text value of that text box. when i try to access that property i got error: "Object reference not set to an instance of ..." the compilation has no detected problem and i do not understand what is the problem. .ascx (web control) ------------------- <%@ Control Language="c#" AutoEventWireup="false" Codebehind="WebUserControl1.ascx.cs" Inherits="WebGrid.WebUserControl1" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%> Name:<asp:TextBox id="txtName" runat="server"></asp:TextBox> public class WebUserControl1 : System.Web.UI.UserControl { protected System.Web.UI.WebControls.TextBox txtName; private string num; public string txt { get { return txtName.Text; } set { txtName.Text=value; } }} ----------------------------------------------------- .aspx (web form that uses the web control .................................................... <%@ Register TagPrefix="uc1" TagName="WebUserControl1" Src="WebUserControl1.ascx" %> <%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebGrid.WebForm1" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > <HTML> <HEAD> <title>WebForm1</title> <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1"> <meta name="CODE_LANGUAGE" Content="C#"> <meta name="vs_defaultClientScript" content="JavaScript"> <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5"> </HEAD> <body MS_POSITIONING="GridLayout"> <form id="Form1" method="post" runat="server"> <uc1:WebUserControl1 id="WebUserControl11" runat="server"></uc1:WebUserControl1> <asp:Button id="Button1" style="Z-INDEX: 101; LEFT: 16px; POSITION: absolute; TOP: 64px" runat="server" Text="Button"></asp:Button> </form> </body> </HTML> private void Button1_Click(object sender, System.EventArgs e) { WebUserControl1 ctl=new WebUserControl1(); Response.Write(ctl.txt); } On Jun 6, 9:07 am, Nimrod Rotner <Nimrod - Hide quoted text - Rot@discussions.microsoft.com> wrote: > Hi, > I built a web control wich has text box and public property that set or get > the text value of that text box. > when i try to access that property i got error: > "Object reference not set to an instance of ..." > the compilation has no detected problem and i do not understand what is the > problem. > .ascx (web control) > ------------------- > <%@ Control Language="c#" AutoEventWireup="false" > Codebehind="WebUserControl1.ascx.cs" Inherits="WebGrid.WebUserControl1" > TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%> > Name:<asp:TextBox id="txtName" runat="server"></asp:TextBox> > public class WebUserControl1 : System.Web.UI.UserControl > { > protected System.Web.UI.WebControls.TextBox txtName; > private string num; > public string txt > { > get > { > return txtName.Text; > } > set > { > txtName.Text=value; > } > }} > ----------------------------------------------------- > .aspx (web form that uses the web control > .................................................... > <%@ Register TagPrefix="uc1" TagName="WebUserControl1" > Src="WebUserControl1.ascx" %> > <%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" > Inherits="WebGrid.WebForm1" %> > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > > <HTML> > <HEAD> > <title>WebForm1</title> > <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1"> > <meta name="CODE_LANGUAGE" Content="C#"> > <meta name="vs_defaultClientScript" content="JavaScript"> > <meta name="vs_targetSchema" > content="http://schemas.microsoft.com/intellisense/ie5"> > </HEAD> > <body MS_POSITIONING="GridLayout"> > <form id="Form1" method="post" runat="server"> > <uc1:WebUserControl1 id="WebUserControl11" > runat="server"></uc1:WebUserControl1> > <asp:Button id="Button1" style="Z-INDEX: 101; LEFT: 16px; POSITION: > absolute; TOP: 64px" runat="server" > Text="Button"></asp:Button> > </form> > </body> > </HTML> > private void Button1_Click(object sender, System.EventArgs e) > { > WebUserControl1 ctl=new WebUserControl1(); > Response.Write(ctl.txt); > } try to call WebUserControl11.txt