How can i add extra attribute fields to the asp.net dropdown list
Solution 1
Use:
ListItem test = new ListItem { Text = srText, Value = srValue}
test.Attributes.Add("data-imagesrc", "xxx");
test.Attributes.Add("data-description", "xxx");
dropListUserImages.Items.Add(test);
Solution 2
I've had the same challenge with translating complex lists of object into values that can be read on the front end, I've used logic similar to the below and found it very useful because it can be adaptive for every type of object:
//Object can be whichever type as you wish
List<Object> example = new List<Object>();
var listItemExamples = example
.Select(a => new Func<ListItem>(() => {
ListItem item = new ListItem(a.PropropertyA.ToString(), a.PropropertyB.ToString() );
item.Attributes["data-PropropertyC"] = a.PropropertyC.ToString();
return item;
})())
.ToArray();
dropListUserImages.Items.AddRange(listItemExamples);
MonsterMMORPG
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Updated on July 09, 2022Comments
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MonsterMMORPG almost 2 years
Below I am able to set values and the text:
dropListUserImages.DataValueField = "Value"; dropListUserImages.DataTextField = "Text"; dropListUserImages.Items.Add(new ListItem { Text = srText, Value = srValue});
I also want to set extra attributes such as:
data-imagesrc data-description
How can I do that?
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sgeddes over 11 yearsJust saw this after I posted mine :-)
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Nix almost 11 years@Mounhim you are correct, aspnet.codeplex.com/workitem/7314 but that is because you can not get access to the attributes.
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Fahad about 5 yearsThanks a ton for this, exactly what I needed!