Rank 1
-------------
Code
public
class ExtendedGridViewDataColumn : GridViewDataColumn
{
#region
"Properties"
public int Index { get; set; }
public int DataType { get; set; }
#endregion
#region
"Methods"
public override FrameworkElement CreateCellElement(GridViewCell cell, object dataItem)
{
FrameworkElement cellElement = null;
TextBlock textBlock = new TextBlock();
Binding binding = new Binding();
string valueProperty = GetPropertyNameForEditorType();
if (((AttributeDataType)DataType)== AttributeDataType.Date)
{
SetBindingProperties(binding, valueProperty,
true);
binding.Converter =
new DateTimeConverter();
textBlock.SetBinding(
TextBlock.TextProperty, binding);
}
else
{
SetBindingProperties(binding, valueProperty,
false);
textBlock.SetBinding(
TextBlock.TextProperty, binding);
}
cellElement = textBlock;
return cellElement;
}
public override FrameworkElement CreateCellEditElement(GridViewCell cell, object dataItem)
{
FrameworkElement cellEditElement = null;
string valueProperty = GetPropertyNameForEditorType();
Binding binding = new Binding();
switch ((AttributeDataType)DataType)
{
case AttributeDataType.Text:
{
cellEditElement =
this.CreateTextEditor(binding, valueProperty);
break;
}
case AttributeDataType.Flag:
{
cellEditElement =
this.CreateCheckBoxEditor(binding, valueProperty);
break;
}
case AttributeDataType.Date:
{
cellEditElement =
this.CreateDateTimeEditor(binding, valueProperty);
break;
}
default:
{
cellEditElement =
this.CreateTextEditor(binding, valueProperty);
break;
}
}
return cellEditElement;
}
private FrameworkElement CreateCheckBoxEditor(Binding binding, string valueProperty)
{
CheckBox checkBox = new CheckBox();
SetBindingProperties(binding, valueProperty,
true);
checkBox.SetBinding(
CheckBox.IsCheckedProperty, binding);
checkBox.Loaded +=
this.Editor_Loaded;
return checkBox;
}
private FrameworkElement CreateDateTimeEditor(Binding binding, string valueProperty)
{
RadDatePicker datePicker = new RadDatePicker();
SetBindingProperties(binding, valueProperty,
true);
binding.Converter =
new DateTimeConverter();
datePicker.SetBinding(
RadDatePicker.SelectedDateProperty, binding);
datePicker.Loaded +=
this.Editor_Loaded;
return datePicker;
}
private FrameworkElement CreateTextEditor(Binding binding, string valueProperty)
{
TextBox textBox = new TextBox();
SetBindingProperties(binding, valueProperty,
true);
textBox.SetBinding(
TextBox.TextProperty, binding);
textBox.Loaded +=
this.textBox_Loaded;
return textBox;
}
private static void SetBindingProperties(Binding valueBinding, string propertyName, bool twoway)
{
if (twoway)
{
valueBinding.Mode =
BindingMode.TwoWay;
}
else
{
valueBinding.Mode =
BindingMode.OneWay;
}
valueBinding.Path =
new PropertyPath(propertyName);
valueBinding.NotifyOnValidationError =
true;
valueBinding.ValidatesOnExceptions =
true;
}
private string GetPropertyNameForEditorType()
{
string propertyName;
switch ((AttributeDataType)DataType)
{
case AttributeDataType.Number:
{
propertyName =
"Number";
break;
}
case AttributeDataType.Flag:
{
propertyName =
"Flag";
break;
}
case AttributeDataType.Date:
{
propertyName =
"Date";
break;
}
default:
{
propertyName =
"Text";
break;
}
}
return propertyName;
}
#endregion
#region
"Events"
void Editor_Loaded(object sender, RoutedEventArgs e)
{
Control target = sender as Control;
if (target != null)
{
target.Focus();
}
}
void textBox_Loaded(object sender, RoutedEventArgs e)
{
var textBox = (sender as TextBox);
if (textBox != null)
{
textBox.Focus();
textBox.SelectAll();
}
}
#endregion
}
5 Answers, 1 is accepted
At first glance everything looks fine with your custom column. I suppose that the problem is the integration with the RadGridView and especially with the way you set the data source to each cell. Can you send me a sample project which I can debug on my side?
Best wishes,
Nedyalko Nikolov
the Telerik team
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Rank 1
I was just wondering if you got my sample project, and had time to take look into issue. I replied to your email with attached zip file of the project since i could not attached the project here. The forum will only allow image files to be attached.
Thanks,
Amit
Please open a support ticket and attach the project, since our mail system blocks e-mails with zip as attachment.
Sorry for the inconvenience caused.
Greetings,
Nedyalko Nikolov
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
Rank 1
I have opened up the ticket # 274124.
Thanks,
Amit
Following is my answer to your support ticket, since your support ticket is not available for the members of Telerik community.
There is a fix only for the "OldData" part, this value is bound to the GridViewCell value, so you can set binding to the GridViewCell.Value property within the CreateCellElement method:
cell.SetBinding(GridViewCell.ValueProperty, CreateValueBinding(valueProperty, false));Unfortunately we cannot fix the "NewData" part with 2009.Q2 version. This behavior can be easily achieved with the last version as shown in my example. Otherwise you can get the GridViewCell object from the event args and get the required information from the editor inside. You can use code similar to get the new value:
e.Cell.ChildrenOfType<TextBox>()[0].TextGreetings,
Nedyalko Nikolov
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.