I had created rad dynamic controls which consists of(textbox, ddl, combobox etc..) and also created dynamic rad wizardsteps, every wizardstep contains a dynamic table.
I want insert those dynamic rad controls into wizardstep table, to achieve this i used sessions but its giving a exception says Script controls may not be registered after PreRender..
When i tried to insert these controls in static asp table it works fine, while adding to a dynamic table i am getting this issue. What i had done wrong, how can i resolve this issue.
Please guide me i am quite new to programming.
What I have tried:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GenerateWizardSteps(2);
RadListView1.DataSource = GetDatatable();
RadListView1.DataBind();
}
else
{
RecreateControls("rtb", "RadTextBox");
}
}
public DataTable GetDatatable()
{
DataTable dt = new DataTable();
dt.Columns.Add("Label");
dt.Rows.Add("RadTextBox");
dt.Rows.Add("RadComboBox");
dt.Rows.Add("RadDateTimePicker");
dt.Rows.Add("RadDropDownList");
dt.Rows.Add("RadDatePicker");
dt.Rows.Add("RadNumericTextBox");
dt.Rows.Add("RadToggleButton");
dt.Rows.Add("RadBinaryImage");
return dt;
}
public void GenerateWizardSteps(int formID)
{
RadWizardStep step;
step = new RadWizardStep();
step.ClientIDMode = ClientIDMode.Static;
step.ID = "step_" + i.ToString();
controlTbl = new Table();
controlTbl.ClientIDMode = ClientIDMode.Static;
controlTbl.ID = "controlTable_" + i.ToString();
Session["myTable"] = controlTbl;
step.Controls.Add(controlTbl);
wizardControl.WizardSteps.Add(step);
}
protected void RadAjaxManager1_AjaxRequest(object sender, Telerik.Web.UI.AjaxRequestEventArgs e)
{
string commandText = e.Argument.ToString().Trim();
string[] splitdata = commandText.Split('&');
commandText = splitdata[0];
string controlName = splitdata[1];
switch (controlName)
{
case "RadTextBox":
int cnt1 = FindOccurence("rtb") + 1;
DynamicControls dcTextBox = new DynamicControls();
TableCell txtlblRad = dcTextBox.Controlscreation("RadLabel", "", cnt1, cnt1, "Text Box:", "", 0);
TableCell txtRad = dcTextBox.Controlscreation("RadTextBox", "", cnt1, cnt1, "", "", 0);
TableRow txtRow = new TableRow();
txtRow.Cells.Add(txtlblRad);
txtRow.Cells.Add(txtRad);
Table controlTbl = Session["myTable"] as Table;
controlTbl.Rows.Add(txtRow);
break;
}
}
private void RecreateControls(string ctrlPrefix, string ctrlType)
{
string[] ctrls = Request.Form.ToString().Split('&');
int cnt = FindOccurence(ctrlPrefix);
if (cnt > 0)
{
for (int k = 1; k <= cnt; k++)
{
for (int i = 0; i < ctrls.Length; i++)
{
if (ctrls[i].Contains(ctrlPrefix + "_" + k.ToString()))
{
if (ctrlType == "RadTextBox")
{
DynamicControls dcTextBox = new DynamicControls();
TableCell txtlblRad = dcTextBox.Controlscreation("RadLabel", "", k, k, "TextBox:", "", 0);
TableCell txtRad = dcTextBox.Controlscreation("RadTextBox", "", k, k, "", "", 0);
TableRow txtRow = new TableRow();
txtRow.Cells.Add(txtlblRad);
txtRow.Cells.Add(txtRad);
Table controlTbl = Session["myTable"] as Table;
controlTbl.Rows.Add(txtRow);
}
break;
}
}
}
}
}
private int FindOccurence(string substr)
{
string reqstr = Request.Form.ToString();
return ((reqstr.Length - reqstr.Replace(substr, "").Length) / substr.Length);
}