Auto Complete In Textbox C#

  • Bring Data In DataTable.
  • Create the Function¬† and Call at Load Event.

public void AutofillTextbox()

{

AutoCompleteStringCollection Auto = new AutoCompleteStringCollection();

for (int i = 0; i < DTItem.Rows.Count; i++) //DTItem is a DataTable Name.
{

Auto.Add(DTItem.Rows[i][“CategoryName”].ToString()); // CategoryName is the Name of Columm in DataTable that has to be AutoComplete in TextBox.

}
TxtSearch.AutoCompleteMode = AutoCompleteMode.Suggest; //TxtSearch is the Textbox in Which AutoComplete is Set.
TxtSearch.AutoCompleteSource = AutoCompleteSource.CustomSource;
TxtSearch.AutoCompleteCustomSource = Auto;

}

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