I have created dynmic textboxes and I would like to save and retrieve the textbox values using session.
I would like to save the textbox values in array .Have this in session and the retrieve this array values in another button click function.
I used the below code.But I get the error "NullReferenceException was Unhandled by user code " when I try to save the values.
How can I rectify this error and save the textbox values in an array?
The code is as below:
protected void saveBtn_Click(object sender, EventArgs e)
int counter1 = 1;
string controlid1 = string.Empty;
ArrayList arrList = (ArrayList)Session["array"];
for (int j = 0; j < ((a)*(b - 1)); j++)
controlid1 = "textbox" + counter1.ToString();
Table t = PlaceHolder1.FindControl("tablee") as Table;
TextBox tb = t.FindControl(controlid1) as TextBox;
// Use Session
Session["array"] = arrList;
counter1 = counter1 + 1;