[Solved] - How to Change arrowbutton to normal button?

[The GridLock]

Hi,

after setting arrowbutton image I want to delete the arrow, How i can do this?

Thanks!

[Susmitha Sundar]

Hi Khanh Dang, 

 

Thank you for using Syncfusion controls. 

 

We are not clear with your requirement. Can you please provide the below things? 

 

1.      Which control you are using? 

2.      Which place or property you set the arrow image?  

3.      Please provide any image reference. 

It will be helpful for us to check on it and provide you the solution at the earliest.   

 

Regards, 

Susmitha S 

 

[The GridLock]

Hi,

i want to remove this arrow and replace by another image or any char ! 

Edit: oops, Sorry.

maybe I didn't pay attention when choosing topic, it was about combobox!

 

[Unknown]

Hi Khanh, 

Thanks for your update. 

We have checked your query “Need to change the drop down button image of SfComboBox” and it can be achieved by using the Paint event of DropDown button in SfComboBox control. Please refer the below code snippet for same. 

C# for Drawing char: 

public Form1() 

        { 

            InitializeComponent(); 

            sfComboBox1.DropDownButton.Paint += DropDownButton_Paint; 

        } 

        private void DropDownButton_Paint(object sender, PaintEventArgs e) 

        { 

            Font myFont = new System.Drawing.Font("Helvetica",16, FontStyle.Italic); 

            e.Graphics.Clear(Color.White); 

            e.Graphics.FillRectangle(Brushes.LightGray, new RectangleF(0, 0, sfComboBox1.DropDownButton.Width, sfComboBox1.DropDownButton.Height)); 

            e.Graphics.DrawString("#", myFont, Brushes.Black, 1, 3); 

        } 

Screenshot: 

 

C# for image: 

private void DropDownButton_Paint(object sender, PaintEventArgs e) 

        { 

            Image image = Image.FromFile( Path.Combine( Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "Images/icon.png")); 

            Font myFont = new System.Drawing.Font("Helvetica",16, FontStyle.Italic); 

            e.Graphics.Clear(Color.White); 

            e.Graphics.FillRectangle(Brushes.WhiteSmoke, new RectangleF(0, 0, sfComboBox1.DropDownButton.Width, sfComboBox1.DropDownButton.Height)); 

            //e.Graphics.DrawString("#", myFont, Brushes.Black, 1, 3); 

            e.Graphics.DrawImage(image, 1, 7,sfComboBox1.DropDownButton.Height-17,sfComboBox1.DropDownButton.Height-15); 

        } 

Screenshot: 

 

Sample : https://www.syncfusion.com/downloads/support/forum/154645/ze/ComboBox_DropDownImage1093117495  

Regards, 

Niranjan Kumar Gopalan 

 

[The GridLock]

Hi Niranjan,

Although the arrowbutton is not highlighted, but your code is enough for me now /

Thanks!

[Unknown]

Hi Khanh, 

Thanks for your update. 

We are glad to know that the reported requirement has been resolved at your end. And the highlighting of the SfCombobox DropDown button can be achieved by refreshing the DropDownButton on MouseHover and MouseLeave events to invoke the paint event and fil the button rectangle with required color based on condition check. Please check the below video and sample for same. 

Video : https://www.syncfusion.com/downloads/support/forum/154645/ze/SfComboBox_ButtonVideo1556967874  

Sample : https://www.syncfusion.com/downloads/support/forum/154645/ze/ComboBox_DropDownImage1234883401  

Regards, 

Niranjan Kumar Gopalan