How do i toggle a button false/true according to EditorGUILayout.TextField empty/with text ?

Unity Engine
1 
using UnityEngine;
using UnityEditor;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System;

public class Sorting : EditorWindow
{
    string objectsName;
    bool groupEnabled;
    bool myBool = true;
    float myFloat = 1.23f;

    // Add menu named "Objects" to the GameObject menu
    [MenuItem("GameObject/Objects")]
    static void Init()
    {
        // Get existing open window or if none, make a new one:
        Sorting window = (Sorting)EditorWindow.GetWindow(typeof(Sorting));
        window.Show();
    }

    void OnGUI()
    {
        GUILayout.Label("Base Settings", EditorStyles.boldLabel);
        objectsName = EditorGUILayout.TextField("By Name", objectsName);
        groupEnabled = EditorGUILayout.BeginToggleGroup("Optional Settings", groupEnabled);
        myBool = EditorGUILayout.Toggle("Toggle", myBool);
        myFloat = EditorGUILayout.Slider("Slider", myFloat, -3, 3);
        EditorGUILayout.EndToggleGroup();

        GUILayout.FlexibleSpace();

        EditorGUILayout.BeginHorizontal();
        GUILayout.FlexibleSpace();
        EditorGUI.BeginDisabledGroup(objectsName == "");
        if (GUILayout.Button("Name"))
        {

        }
        EditorGUILayout.EndHorizontal();
        EditorGUI.EndDisabledGroup();
    }
}

This is a EditorWindow type script.
And i want to make that when i display this window in the editor by default the button will be disabled.

Then if i type anything inside the EditorGUILayout.TextField the button will be enabled(true).
Then if i delete the text from the EditorGUILayout.TextField the button will be disabled(enabled false) again.

The problem is i can’t make the button start by default disabled.

I’m trying to use BeginDisabledGroup and EditorGUIEndDisabledGroup but this make the button start by defaulr enbaled true and not disabled. Only if i will type something and delete it the button will be disabled but i want the button to start by default disabled. Then when i type something it will be enabled(enable true).

I tried before:

GUI.enabled = (objectsName != "");

But it didn’t give me what i need.

2

You can’t tell much from this code.
You don’t show how the objectsName value is initialized.
Put the whole script here, not OnGUI only.

3

Edited my question with the full script.

4

Notice than the objectsName value is not defined, so possibly it just can not work other way it does.
Put:
string objectsName = “”;
instead of
string objectsName;
at the top and try again and let me know.

5

Yes it’s working now. Thank you.