Questions on UI for WinForms Forum

1 answer

295 views

GridViewComboBoxColumn custom DropDownWidth

I have GridViewComboBixColum in a RadGridview, is there the posibility to change the width of the items that are displayed?, because the column is too short to allow see all the items that are contained in the DropDown.
Thanks in advance.

GridView

answered on 30 Oct 2017

1 answer

298 views

SelectedValue not set to null

I used BindingList for data binding,

BindingList<Person> personList = new BindingList<Person>();

radMultiColumnComboBox1.DataSource = personList;

RadMultiColumnComboBoxElement multiColumnComboElement = this.radMultiColumnComboBox1.MultiColumnComboBoxElement;

multiColumnComboElement.EditorControl.MasterTemplate.AutoGenerateColumns = false;

GridViewTextBoxColumn column = new GridViewTextBoxColumn(); column.HeaderText = "ID";

column.FieldName = "id";

column.Name = "colId"; multiColumnComboElement.Columns.Add(column); column = new GridViewTextBoxColumn(); column.HeaderText = "Name"; column.FieldName = "name"; column.Name = "colName"; multiColumnComboElement.Columns.Add(column);

Let Person object have two properties, id and name. I set ValueMember to id and DisplayMember to name.

And I set the SelectedValue,

radMultiColumnComboBox1.SelectedValue = person.id;

This is working correctly. But when person.id become null, SelectedValue is not null, instead it select first item of BindingList<Person>.

I can't understand why. Pls answer to me.

MultiColumn ComboBox

answered on 30 Oct 2017

1 answer

160 views

RadTextBoxControl - How to use linked ImageList

I can see that there is an option to link ImageList to RadTextBoxControl but there are no options to use the images of said ImageList. Am I missing something? I don't see any properties to mention the index of the ImageList.

TextBoxControl

answered on 30 Oct 2017

3 answers

340 views

null text for textbox menu item

I don't see a null text property for a textbox menu item. I need to be able to label the textbox and the null text feature would be perfect for a tight situation like this.

Thanks!

Menu

answered on 30 Oct 2017

3 answers

190 views

CheckedDropDownList with CheckAllItem enabled.....how do it

I have a CheckedDropDownList with the CheckAllItem enabled. When I check or uncheck that item, I don't want the ItemCheckedChanged event to fire for all the other items in the list. I want to handle the "All Checked" my self. Waiting for the control to spin through my list, which I could have 100's of items, takes a while, while I have other code running to process based on the items being checked or not.

TIA

CheckedDropDownList

answered on 30 Oct 2017

1 answer

71 views

Create excel from the visible datapoints

Hi,

I managed to get the sets of categorical data points of the lines in the currently visible range (that has been zoomed and panned). Now I need to write excel file with Date (Category) in first column and for each series a column with series' visible values (from the visible range). Is there any direct way to get the datatable of the visible points to write it to excel, or I need to go point by point and write it to datatable one by one?

ChartView

answered on 30 Oct 2017

7 answers

577 views

Handle the Double Click

Good Day

Is there a way to handle a Double click on a Datagrid row ?

Thanks

GridView

answered on 30 Oct 2017

3 answers

325 views

Load Page On Demand

Good Morning,

I have a gridview that loads some info about products in an unbound manner. I am using paging so I load only a handful at a time to quicken the loading process(because it really takes a long time to load many lines at once since there are some image getting/network traffic involved). But when I use paging, the grid still takes forever to load all pages before being usable. Is there anyway to load pages on demand? By on demand I mean click on the number of a page and load only the items that show on that page.

What I tried so far:

foreach (ECommerceDTS.PRODUCTSRow row in eCommerceDTS.PRODUCTS.Skip(radGridView1.GridViewElement.PagingPanelElement.ZIndex * PAGE_SIZE).Take(PAGE_SIZE))

{

productEcomm = new ProductEcommerce(row);

listProducts.Add(productEcomm);

i++;

}

This works wonderfully loading only PAGE_SIZE items. The problem is that it loads only the first page, and the grid doesn't show other buttons to go to page 2. Is there any workaround this? Maybe hardsetting the number of buttons to show even if there are no items loaded?

Another question: Am I right to assume that ZIndex of the PagingPanelElement means the index of the selected page?

Thanks in advance. Kind Regards,

Leandro

GridView

answered on 30 Oct 2017

1 answer

98 views

PivotGrid ScrollTo

I use dgv.PivotGridElement.SelectRow(row) to select a specific row. I now need to ensure this row is visible(displayed) to the user.
How do I now scroll to the specific row? The radGridView control has a EnsureVisible function on the rowInfo class, but I'm not finding anything on the PivotGrid

I've tried PivotGridElement.ScrollTo() but it's not working for me.

Is this possible, how do I accomplish this?

I'm using release 2015.3.1104.40
Thanks

PivotGrid and PivotFieldList