Questions on UI for WinForms Forum

1 answer

125 views

I am using the example from here http://www.telerik.com/community/forums/winforms/gridview/radgrid-sum-expression-for-child-data.aspx to have a cell in my parent table (unbound) show the sum of the columns in a child grid. The problem I am running into is that ChildRows is off by 1. I.e. when CellValueChanged is called when I enter the amount, looks like the Row has yet to be added. Is there a better event to hook? I really want to update when the Row has been added.

Is CellValueChanged called before the ChildRows collection is updated?

private void gridExpenses_CellValueChanged(object sender, GridViewCellEventArgs e)

{

if (e.Column.OwnerTemplate != gridExpenses.MasterTemplate && e.Column.Name == "colAmount")

{

EvaluateTotal((GridViewRowInfo)e.Row.Parent);

}

private void EvaluateTotal(GridViewRowInfo parent)

{

if (parent.ChildRows.Count > 0)

parent.Cells["colRemaining"].Value = gridExpenses.Evaluate("Sum(colAmount)", parent.ChildRows);

}

GridView

answered on 18 Dec 2013

3 answers

372 views

RadGrid sum expression for child data

Hello everyone,

Here is my situation:

I have a dataset with a relationship between two tables. These two tables are load in an hierarchical way in the radgridview.

Now, in the child grid, I have a price column for each row.

I am trying to create a calculated field in the master grid view which will reflect the total of the prices in the child grid. The code I am using is like the following:

...
GridViewTemplate child = rdGvView.MasterTemplate.Templates[0];
rdGvView.MasterTemplate.Columns["TotalPrice"].Expression = "Sum(child.prodPrice)";
....

But this gives me an error which says {"Field name: child does not exist in the template."}

I am using the sum expression from this link: http://msdn.microsoft.com/en-us/library/system.data.datacolumn.expression(VS.80).aspx

where prodPrice is the column name of the table in the dataset which is imported in the radgrid.

Thanks,
Yash

GridView

answered on 18 Dec 2013

0 answers

218 views

RadGridview row with data move up and down by button outside the grid

Hi,
I have a gridview loaded with a datatable. I have 2 buttons "Up" and "Down" outside the grid. The "Up" button takes the selected row and moves it up one row. The "Down" button takes the selected row down a row.

eg:
1 sample1
2 sample2
if selected row is sample1 and then i click down button, i need to change the grid row to
2 sample2
1 sample1

please give solution for this

GridView

asked on 18 Dec 2013

3 answers

259 views

[Solved] Enter (new line)

Hi,

When I hit enter in the richtextbox, an empty line appears between the previous and the new line (like a new paragraph).
I would like to insert a 'normal' enter/new line when I hit enter.

Is this possible? Now the only way I can achieve this is when I hit shift + enter.

Best regards.

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 18 Dec 2013

1 answer

207 views

Export RadGridView to Excel.

Hi,
I have a RadGridView in which there are 3 image columns. While exporting RadGridView to excel using ExportToExcelML class, all image columns are exported empty. Requirement is to display text instead of images. Is there a way to convert Image columns to text column or any other possible ways to achieve?

Also, I should export only visible columns in RadGridView and the text columns should be present only in the exported excel file and not to be displayed in RadGridView.

We are using Telerik Control version : 2013.3.1127.40

Regards,
Vimal

GridView

answered on 18 Dec 2013

5 answers

450 views

[Solved] RadDropDownListEditor - The cell reverts to the value instead of the text once the selection is made

I am using RadDropDownListEditor. When the selection is made and dropdown loses focus, the cell reverts from the display text to the value.
How to keep the display text and not replace the cell with the value once the selection is made? I found an old thread back to 2011 which reported the same issue, however the suggestion does not fit my scenario, as I have to use a GridViewTextBoxColumn.

Here is the simplified sample of my cs codes. The designer is very simple, just a GridViewTextBoxColumn in a RadGridView control. A screenshot of the issue is also attached.

public partial class Form1 : RadForm

{

public Form1()

{

InitializeComponent();

this.radGridView1.EditorRequired += radGridView1_EditorRequired;

this.radGridView1.CellEditorInitialized += radGridView1_CellEditorInitialized;

}

void radGridView1_CellEditorInitialized(object sender, GridViewCellEventArgs e)

{

if (e.ActiveEditor is RadDropDownListEditor)

{

RadDropDownListEditor editor = e.ActiveEditor as RadDropDownListEditor;

RadDropDownListEditorElement element = (RadDropDownListEditorElement)editor.EditorElement;

element.DisplayMember = "Description";

element.ValueMember = "Code";

element.DataSource = this.CreateDataTable();

element.SelectedIndex = -1;

}

void radGridView1_EditorRequired(object sender, EditorRequiredEventArgs e)

{

e.EditorType = typeof(RadDropDownListEditor);

}

private DataTable CreateDataTable()

{

DataTable dataTable = new DataTable();

dataTable.Columns.Add("Code", typeof(decimal));

dataTable.Columns.Add("Description", typeof(string));

for (int i = 0; i < 5; i++)

{

DataRow dr = dataTable.NewRow();

dr[0] = i + 1;

dr[1] = "Description " + (i + 1);

dataTable.Rows.Add(dr);

}

return dataTable;

}

Any suggestion is appreciated.

Regards,
Shuping

GridView

answered on 16 Dec 2013

3 answers

1.0K+ views

Change total summary row style in GridView

Hello!
I use RadGridView with grouping (with subtotal summary rows) and with total summary row at the end of the gridview.
I need to change text style only in total summary row. I've tried to use ViewCellFormatting event

private void gvProducts_ViewCellFormatting(object sender, Telerik.WinControls.UI.CellFormattingEventArgs e)

{

if (e.CellElement is GridSummaryCellElement)

{

e.CellElement.TextAlignment = ContentAlignment.BottomRight;

e.CellElement.Font = new Font(e.CellElement.Font, FontStyle.Bold);

}

But this code changes text style in each summary row. Could you help me, how can I understand is it a subtotal summary row or the last total summary row? Thank you in advance.

GridView

answered on 16 Dec 2013

3 answers

120 views

[Solved] Reproducing the Office2007blue Group Summary Line

Hi!
Sorry, the title should be: Reproducing the Office2007blue Group Row Line.

After upgrading from 2009-Q1 to 2013-Q2, we found out that the ControlDefault Theme (Office2007Blue) for the gridview's "Group Rows" look significantly different, and cannot be simply reproduced with any provided theme in the 2013-Q2 release.

We really liked having the Group Row looking like:
1) The Group Expansion icon in the first column
2) The Group Summary Text
3) A light-blue horizontal line, with a thickness of about 5 pixels, with rounded endpoints, vertically centered in the row, and going to the last column.

Thanks for your help in reproducing this look using 2013-Q2 technology!

GridView

answered on 16 Dec 2013

3 answers

164 views

Is it possible to make a Tab Flash?

I was curious if it was possible to make a Non-Active tab flash?

For instance, something is added to the grid on a non selected tab. I would like the tab to flash blue and white until the user clicked on it. But i don't want the application to automatically swap tabs.

Thanks!

Tabstrip (obsolete as of Q2 2010)

answered on 12 Dec 2013

1 answer

110 views

Schedule Grid - Scrollbar navigation slowness

Hi,

We are using schedule view to display list of appointments in the range of 1 year with 1500 schedules.

We need to show some of the text in the subject as bold. For that, we are using Run control inside appointment template.
This implementation makes scroll navigation very slow.
Pls let me know the solution or any alternate way for implementing this.

- Sugumar P

Scheduler and Reminder

answered on 12 Dec 2013