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copied!<p>You should just pass the MainForm to the SearchForm, this way before you close the search form you will be able to hide the original MainForm without creating a new one. See the code bellow :</p> <pre><code>public class MainForm:Form { private SearchForm searchForm;//for keeping the search form public MainForm()//your main form constructor { } this.searchBtn.Click+=(s,e)=> { if(this.searchForm == null) { this.searchForm = new SearchForm(this);//creating new searchForm if it does no exist this.searchForm.Show(); this.Enabled = false; } }; } public class SearchForm:Form { private MainForm mainForm;//this will keep the original mainform public SearchForm(MainForm mainForm) { this.mainForm = mainForm; } this.OnFormClosing+=(s,e)=> { this.mainForm.Enabled = true; }; } </code></pre> <p>This will close the search form every time and create a new instance of it when you click the search button. If you want to hide it you should use this code : </p> <pre><code>public class MainForm:Form { private SearchForm searchForm;//for keeping the search form public MainForm()//your main form constructor { } this.searchBtn.Click+=(s,e)=> { if(this.searchForm == null) { this.searchForm = new SearchForm(this);//creating new searchForm if it does no exist this.searchForm.Show(); this.Enabled = false; } else { this.Enabled = false; this.searchForm.Show(); } }; } public class SearchForm:Form { private MainForm mainForm;//this will keep the original mainform public SearchForm(MainForm mainForm) { this.mainForm = mainForm; } this.OnFormClosing+=(s,e)=> { e.Cancel = true; this.mainForm.Enabled = true; this.Hide(); }; } </code></pre> <p>basically this is the easiest way to do this without complicated events and so on. I hope this solves your issue if not i am here to help.</p>

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