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Showing posts from November, 2013

How to add ActiveX control at run time using C#.NET

Hi, recently I worked on a project where the requirement was to add an ActiveX control dynamically to a UserControl type project. Here I was trying to add that activeX control to multiple tab pages of a tab control. Here is the code that I used - for(int i = 0; i < 4; i++) {       this.LineTabs.TabPages.Add(i);       AxTree treeadd = treeload(this.LineTabs.TabPages[i]); } In the above code I am creating four tab pages at runtime and adding ActiveX control "AxTree" to these pages dynamically using function "treeload". Here is the code for "treeload" function - private AxTree treeload(TabPage tab)     {         AxTree treeobject = new AxTree();         ((System.ComponentModel.ISupportInitialize)(treeobject)).BeginInit();         SuspendLayout();         tab.Controls.Add(treeobject);         treeobject.Dock = DockStyle.Fill;         ResumeLayout();         ((System.ComponentModel.ISupportInitialize)(treeobject)).EndInit();    

Dynamically adding controls to web form and their event handling in ASP.NET using C#

Add control dynamically using code on web form Sometimes in web form we need to add controls using code. Following C# code can be used to add button control dynamically to web form.     Button btn1 = new Button();     btn1.Text = "New Button";     this.Controls.Add(btn1); To add the dynamically created button control to a Panel control use following code -     Panel1.Controls.Add(btn1); Event Handler for dynamically added control We can use following code to declare click event for dynamically added button code-   btn1.Click += new EventHandler(btnClick); After declaring the click event, define the event handler using C# - private void btnClick(object sender, EventArgs e) {       Button btn = (Button)sender;  //get the button which is                                       clicked       // write your code } So, the complete code becomes -  {     Button btn1 = new Button();     btn1.Text