How to change font color of listbox selected items C#

Question

1.33/5 (2 votes)

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how to change font color of listbox selected items C# on button click

What I have tried:

for (int i = 0; i < lbProductsToBuy.Items.Count; i++)
{
lbProductsToBuy.SetSelected(i, true);
i.fontcolor = color.Red;
}
but it's not working

Posted 3-Aug-16 11:37am

Member 9983063

Updated 3-Aug-16 12:54pm

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Comments

Afzaal Ahmad Zeeshan 3-Aug-16 21:51pm

Integer has no definition for "fontcolor". Instead what you need to use is, the items collection and then select the item at ith index.

1 solution

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RossMW · Answer 1 · 2016-08-03T12:54:00

Solution 1

You are trying to change the colour of an int I not the listbox item.

Use owner-draw mode of the ListBox. Select your ListBox in design-mode and change DrawMode property to OwnerDrawFixed. Now attach a handler to DrawItem event and then use Graphics class's methods to draw your string in any color or font you like. An example of what you need to do in DrawItem would be:

C#

private void listBox1_DrawItem(object sender, DrawItemEventArgs e)

   MyListBoxItem item = listBox1.Items[e.Index] as MyListBoxItem; // Get the current item and cast it to MyListBoxItem
    if (item != null) 
    {
        e.Graphics.DrawString( // Draw the appropriate text in the ListBox
            item.Message, // The message linked to the item
            listBox1.Font, // Take the font from the listbox
            new SolidBrush(item.ItemColor), // Set the color 
            0, // X pixel coordinate
            e.Index * listBox1.ItemHeight // Y pixel coordinate.  Multiply the index by the ItemHeight defined in the listbox.
        );
    }

Posted 3-Aug-16 12:54pm

RossMW

Updated 3-Aug-16 13:24pm

v5

Comments

Member 9983063 3-Aug-16 19:10pm

lbProductsToBuy.Item[I].ForeGround = System.Drawing.Color.Red;
Sir it's not working

Member 9983063 3-Aug-16 19:14pm

sir i want to change selected items forecolor change not background color

RossMW 3-Aug-16 19:14pm

Sorry. Did a quick test and found the listbox cant do it natively so you have to dig into the bows of it. See update solution

RossMW 3-Aug-16 19:15pm

Haven't tested personally. is foreground not a option?

Member 9983063 3-Aug-16 19:16pm

yea there are 4 option equal gettype and getdatatype and tostring that's it

RossMW 3-Aug-16 19:19pm

Try

MyListBoxItem item = listBox1.Items[e.Index] as MyListBoxItem; // Get the current item and cast it to MyListBoxItem
if (item != null)
{
e.Graphics.DrawString( // Draw the appropriate text in the ListBox
item.Message, // The message linked to the item
listBox1.Font, // Take the font from the listbox
new SolidBrush(item.ItemColor), // Set the color
0, // X pixel coordinate
e.Index * listBox1.ItemHeight // Y pixel coordinate. Multiply the index by the ItemHeight defined in the listbox.
);
}

RossMW 3-Aug-16 19:20pm

Working late tonight ?

BillWoodruff 4-Aug-16 1:37am

"Haven't tested personally."

If you are posting code you didn't write, and have never used, then please give a link to the source.

RossMW 4-Aug-16 2:41am

Sorry Mum