Confirm Module Action - Modules

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Confirm Module Action

3/3/2019 3:45 AM

Michael Tobisch

https://www.dnnwerk.at
Joined: 6/27/2005

Posts: 2083

Confirm Module Action

Hi all,

in a module I want to add an action to delete a bunch of records. This is not a real challenge, and I found a good blog contribution by Joe Brinkman here (the Url Postback example).

What I want to do is adding a dnnConfirm plugin to confirm the deletion.

Any idea how to do this?

My code so far:

public ModuleActionCollection ModuleActions
{
   get
   {
      ModuleActionCollection actions = new ModuleActionCollection();
      // some other actions...
      actions.Add(GetNextActionID(),
         Localization.GetString("DeleteResults.Action", LocalResourceFile),
         "DeleteStuff",
         "cancel",
         IconController.IconURL("Delete"),
         string.Empty,
         true,
         SecurityAccessLevel.Edit,
         true,
         false);
      return actions;
   }
}

protected override void OnInit(EventArgs e)
{
   // some other stuff here...
   AddActionHandler(MyActions_Click);
   base.OnInit(e);
}

private void MyActions_Click(object sender, ActionEventArgs e)
{
   switch (e.Action.CommandName)
   {
      case "DeleteStuff":
         if (e.Action.CommandArgument != "cancel")
         {
            // Call controller, do the deletes;
         }
         else
         {
            // Do nothing or display a cancel message or whatever
         }
         break;
      default:
         break;
   }
}

Any help is appreciated...

Happy DNNing!
Michael

Michael Tobisch
DNN★MVP

3/3/2019 9:48 AM

Michael Tobisch

https://www.dnnwerk.at
Joined: 6/27/2005

Posts: 2083

Re: Confirm Module Action

OK, got it.

There is a lot of problems to solve, main thing is to reach the menu item in the actions menu, because there is no client ID for that. Therefore, the item hgas to be reached by the href property of the link - which is a bit complicated. Finally I found out that the href is

  __doPostBack('dnn$ctr421$ModuleActions$actionButton', '6')

421 is the ModuleId, that was not hard to find. I suspected that '6' is the ID of the ModuleAction, but when investigating, I found out that this ID changed with every refresch - and even with every "? ModuleActions.GetActionByCommandName("DeleteStuff").ID" in the Direct Window at the same breakpoint:

? ModuleActions.GetActionByCommandName("DeleteStuff").ID
29
? ModuleActions.GetActionByCommandName("DeleteStuff").ID
33
? ModuleActions.GetActionByCommandName("DeleteStuff").ID
37


????
Finally I found out that '6' is the ActionID when creating the item - and that is NOT a (public) property of the ModuleAction. Again ???.  Therefore I added a property "DeleteStuffActionID" and changed my code to in the ModuleActions property to:
   DeleteStuffActionID = GetNextActionID();
   actions.Add(DeleteStuffActionID, Localization.GetString("DeleteStuff.Action",
      LocalResourceFile), "DeleteStuff", "Delete", IconController.IconURL("Delete"),
      string.Empty, true, SecurityAccessLevel.Edit, true, false);

In the PreRender Event I added some JavaScript injection to hook on this link:
            StringBuilder confirmDeleteScriptBuilder = new StringBuilder();
            confirmDeleteScriptBuilder.Append("$(document).ready(function() {\r\n");
            confirmDeleteScriptBuilder.Append(string.Format("   var deleteLink = $(\"a[href='  __doPostBack(\\\\\\\'dnn$ctr{0}$ModuleActions$actionButton\\\\\\\', \\\\\\\'{1}\\\\\\\')']\");\r\n", ModuleId, DeleteStuffActionID));
            confirmDeleteScriptBuilder.Append("   deleteLink.dnnConfirm({\r\n");
            confirmDeleteScriptBuilder.Append(string.Format("      text: \"{0}\",\r\n", Localization.GetString("ConfirmStuffDelete.Text", LocalResourceFile)));
            confirmDeleteScriptBuilder.Append(string.Format("      yesText: \"{0}\",\r\n", Localization.GetString("Yes.Text")));
            confirmDeleteScriptBuilder.Append(string.Format("      noText: \"{0}\",\r\n", Localization.GetString("No.Text")));
            confirmDeleteScriptBuilder.Append(string.Format("      title: \"{0}\"\r\n", Localization.GetString("DeleteStuff.Action", LocalResourceFile)));
            confirmDeleteScriptBuilder.Append("   });\r\n");
            confirmDeleteScriptBuilder.Append("});\r\n");

            if (!(Page.ClientScript.IsStartupScriptRegistered("ConfirmDeleteScript")))
               Page.ClientScript.RegisterStartupScript(GetType(), "ConfirmDeleteScript", confirmDeleteScriptBuilder.ToString(), true);


If anyone wonders about the amount of backslashes: the escape sequence for \ is \\, and the Javascript needs \\\' for ', and in a string in C# this is getting \\\\\\\' - three backslashes and one ' :-)
Any less complicated way to achieve this would be appreciated...
Happy DNNing

Michael

Michael Tobisch
DNN★MVP

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Confirm Module Action

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