protected void setHTMLAttr <T>(string attrName, T newValue)
{
List <HTMLAttribute> attrs = GetMoreHTMLAttributesValue();
HTMLAttribute attr = attrs.Find(a => string.Compare(a.AttributeName, attrName /*, true*/) == 0);
if (attr != null)
{
attr.AttributeValue = newValue.ToString();
}
else
{
attrs.Add(new HTMLAttribute(attrName, newValue.ToString()));
}
}
protected override CollectionForm CreateCollectionForm()
{
var form = base.CreateCollectionForm();
Button orgOKBtn = form.AcceptButton as Button;
if (orgOKBtn == null)
{
return(form);
}
// hide the original OK button
orgOKBtn.AutoSize = false;
orgOKBtn.Width = 0;
orgOKBtn.Height = 0;
orgOKBtn.Visible = false;
// create a new OK button
Button newOKBtn = new Button()
{
Text = "OK"
};
orgOKBtn.Parent.Controls.Add(newOKBtn);
form.AcceptButton = newOKBtn;
newOKBtn.Click += new EventHandler((obj, arg) => {
// validate value
List <HTMLAttribute> newAttrList = form.EditValue as List <HTMLAttribute>;
string errMsg = HTMLAttribute.ValidateAttributes(newAttrList);
if (errMsg != null)
{
//// show message in ErrorList window
//var errProvider = new Microsoft.VisualStudio.Shell.ErrorListProvider(provider);
//errProvider.ProviderName = "test";
//errProvider.ProviderGuid = new Guid();
//errProvider.Tasks.Add(new Microsoft.VisualStudio.Shell.Task(ex));
MessageBox.Show(form, errMsg, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// perform original onclick handling
// must make original ok button visible, otherwise PerformClick() doesn't work
orgOKBtn.Visible = true;
orgOKBtn.PerformClick();
});
return(form);
}
protected T getHTMLAttr <T>(string attrName, T defaultValue = default(T))
{
List <HTMLAttribute> attrs = GetMoreHTMLAttributesValue();
HTMLAttribute attr = attrs.Find(a => string.Compare(a.AttributeName, attrName /*, true*/) == 0);
if (attr != null)
{
System.ComponentModel.TypeConverter converter
= System.ComponentModel.TypeDescriptor.GetConverter(typeof(T));
if (converter != null)
{
return((T)(converter.ConvertFromString(attr.AttributeValue)));
}
}
return(defaultValue);
}
public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, IServiceProvider provider, object value)
{
List <HTMLAttribute> oldList = HTMLAttribute.CloneHTMLAttributeList((List <HTMLAttribute>)value);
List <HTMLAttribute> newList = base.EditValue(context, provider, value) as List <HTMLAttribute>;
// remove empty attributes
if (newList != null)
{
newList.RemoveAll(attr => string.IsNullOrEmpty(attr.AttributeName));
}
if (HTMLAttribute.AreAttributeListsEqual(oldList, newList))
{
// value are not changed
return(newList);
}
else
{
// value changed. turn on document dirty flag
return(new List <HTMLAttribute>(newList));
}
}