Question

I have created dynamic controls in ASP.NET as following ..

first i have created checkbox as

 CheckBox chkDynamic = new CheckBox(); 

Then

 TextBox txtDynamic = new TextBox();
 txtDynamic.ID = "txtDynamic";

and these controls added in tablecell added in tableRow added in Table added in aspPanel(Only panel created at design page)

Now what i need.. when checkbox is selected i want to clear the txtDynamic Textbox using JavaScript

I tried following ways but not working..

 chkDynamic.Attributes["onclick"] = "javascript:document.getElementById('" + txtDynamic.UniqueID + "').value='';";

also i tried with calling Method as

 chkDynamic.Attributes.Add("onclick", "javascript:ClearText(this)");

but in this method following line giving me error not found “txtDynamic”.. because the control added dynamicaly.

 document.getElementById("<%= txtDynamic.ClientID %>").value="";

Thanks in advance….

Answer 1

After lots of debug i fond the answer. What does ASP.Net do at the run time it changes the ClientID of the control with attaching the parent control some prefix so before i added the entire table at the end of the all the TR created now what i did to solve this i have added the table to panel as plDynamicControls.Controls.Add(tblGeneralControls); then i added following code and it works like charm

chkDynamic.Attributes["onclick"] = string.Format("yearSuffixCHK(this, '{0}')", txtDynamic.ClientID);
txtDynamic.Attributes["onchange"] = string.Format("yearSuffixTXT(this, '{0}')", chkDynamic.ClientID);