How to reset the MultiColumnComboBox Control?

[Ammar]

Hi,

I'm currently writing a function that takes a Multicolumn combobox control as a parameter and its supposed to reset the contents of the mentioned control However after trying each and every possible solution I still don't have any progress

It ONLY works if I am currently focused ​on the combobox otherwise the function will only recognize it's existence but won't perform any operations.

Here is all the relevant code

This is where the function is called

ResetControls.cs

public static void ResetControls(Control Container)

{

foreach (Control control in Container.Controls)

{

if(control is TextBox)

{

MessageBox.Show("TextBox");

TextBoxHelper.ResetTextBox((TextBox)control);

}

else if(control is DataGridView)

{

// TODO: Check form state before removing data

DataGridViewHelper.ClearDataGridView((DataGridView)control);

}

// For syncfusion

else if (control is MultiColumnComboBox)

{

MessageBox.Show("MultiColumn");

SyncfusionHelper.ComboBoxHelper.ResetComboBox((MultiColumnComboBox)control);

}

}

}

Syncfusion Helper.cs

public static class SyncfusionHelper

{

public static class ComboBoxHelper

{

public static void ResetComboBox(MultiColumnComboBox multiColumnComboBox)

{

multiColumnComboBox.SelectedItem = null;

multiColumnComboBox.SelectedIndex = -1;

multiColumnComboBox.UpdateText(true);

multiColumnComboBox.TextBox.Text = String.Empty;

}

}

}





Please let me know whatever I am missing here

[Ammar]

Still waiting for a solution

[Ammar]

Please provide a solution I need to get this over with my task is long overdue

[Ammar]

Its honestly really frustrating to ask a simple question here, all I want is a solution to a minor problem and I've been waiting for almost 2 days   

[BagavathiPerumal Apranandham]

Hi Ammar,

Sorry for the delay in getting back to you.

We are unable to reproduce the issue at our end; however, we've created a sample uses the button click event to clear the MultiColumnComboBox's content and also attached video for your reference. please provide more details about the requirement, or modify our sample and revert to us with a reproducible issue or video. So, it will be helpful to prompt the solution further.

Attachment: MuliColumnComboBox_WinForms_137bd142.zip

Regards,
Bagavathi Perumal