Hiya,

I have a grid with a template column that contains a RadColorPicker. I would like to read the color values in a postback.  However, using the code below, I'm only getting the values from the original data source.

ASPX:

<telerik:RadGrid ID="grdUser" runat="server" AllowMultiRowSelection="true" AutoGenerateColumns="false" ShowStatusBar="true"
            AllowSorting="True" AllowFilteringByColumn="true"
            OnItemDataBound="grdUser_ItemDataBound">
            <MasterTableView DataKeyNames="UserId, UserName, HexCode" CommandItemDisplay="None">
                <Columns>
                    <telerik:GridClientSelectColumn UniqueName="ClientSelectColumn" HeaderStyle-Width="40px"/>

                    <telerik:GridBoundColumn UniqueName="UserName" HeaderText="Name" DataField="UserName" /> 

                    <telerik:GridTemplateColumn DataField="HexCode" HeaderText="Route Colour" UniqueName="HexCode">
                        <EditItemTemplate>
                            <telerik:RadColorPicker ID="editColor" runat="server" SelectedColor='<%# Bind("HexCode") %>' />
                        </EditItemTemplate>
                         <ItemTemplate> 
                             <telerik:RadColorPicker id="RadColorPicker1" runat="server" ShowIcon="true" /> 
                         </ItemTemplate>
                    </telerik:GridTemplateColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings>
                <Selecting AllowRowSelect="true" />
                <Scrolling AllowScroll="True" UseStaticHeaders="True" />
            </ClientSettings>
        </telerik:RadGrid>

        <telerik:RadButton ID="btnGo" runat="server" Text="Go"  />

C#:

 protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            DataTable dataTable = new DataTable();
            dataTable.Columns.Add("UserId", typeof(long));
            dataTable.Columns.Add("UserName", typeof(string));
            dataTable.Columns.Add("HexCode", typeof(string));

            dataTable.Rows.Add(1, "Bob", "#2E8B57");
            dataTable.Rows.Add(2, "Tim", "#BA55D3");
            dataTable.Rows.Add(3, "Jim", "#FF8C00");
            dataTable.Rows.Add(4, "Rob", "#4682B4");
            dataTable.Rows.Add(5, "Dan", "#B22222");

            grdUser.DataSource = dataTable;
            grdUser.DataBind();
        }
        else
        {
            foreach (Telerik.Web.UI.GridDataItem user in grdUser.SelectedItems)
            {
                // Read new color values from the grid.
                string alteredColor = grdUser.MasterTableView.DataKeyValues[user.ItemIndex]["HexCode"].ToString();
            }
        }
    }

    protected void grdUser_ItemDataBound(object sender, GridItemEventArgs e)
    {
        GridDataItem item = e.Item as GridDataItem;

        if (item != null)
        {
            RadColorPicker rcpDeviceColour = e.Item.FindControl("RadColorPicker1") as RadColorPicker;

            if (rcpDeviceColour != null)
            {
                string hexCode = item.GetDataKeyValue("HexCode").ToString();
                rcpDeviceColour.SelectedColor = System.Drawing.ColorTranslator.FromHtml(hexCode);
            }
        }
    }

How do I read the updated color values in the grid during a postback?

Thanks in advance,

Matt

My current version  - Telerik.Web.UI, Version=2021.1.330.45

I am using RadComboBox control and property EnableCheckAllItemsCheckBox="true". Therefore "Check All" feature enabled.

And other properties are as below

            EnableLoadOnDemand = true;
            ShowToggleImage = true; 
            ShowDropDownOnTextboxClick = true;
            ShowMoreResultsBox = true;
            ItemsPerRequest = 10;
            EnableVirtualScrolling = true;

steps are as follows.

1.  check "Check All" checkbox. Then first loaded 10 records got checked.

2. Then loaded another set of items clicking arrow icon at the bottom of the record list.

3. Loaded next 10 records and now all together showing 20 records. At this stage all checkboxes are unchecked but still "Check All" checkbox        is checked.

4. Unchecked "Check All" check box and and checked again. Now it is checked only last loaded 10 records only instead of 20 records.

I tried to resolve this by following code. But not luck.

Highly appreciate your quick response since this is urgent for me.

Thank You,

Chandi  

Hello!

I want to be able to edit a radgrid cell in place. When doing as the documentation suggests Telerik Web Forms In Place - RadGrid | Telerik UI for ASP.NET AJAX I encounter an issue. When editing a field and your at the bottom of the page it resets and scrolls back to the top of the page.

Is there any way to do this without updating the page or have it stay on the page where you want to edit?

Thanks in advance

Hello,

To provide a bit of background, I have a page which refreshes it's data every two seconds but doesn't actually visibly refresh (By using a RadAjaxPanel). I'd like to click a button on a data row and populate the data from that row into a RadWindow (Like an edit dialog), and also have additional buttons in that dialog for various operations.

I have a RadWindow and code attached to a button which should set the RadWindow to be visible, however the RadWindow does not appear.

Example Code:

In Example.aspx -

<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" Style="width: 100%">

//////Some MasterTableViews and RadGrids with various data here with buttons to pop up an edit dialog////

</telerik:RadAjaxPanel>

<telerik:radwindow runat="server" id="RadWindow1" Visible="False">
    <ContentTemplate>
        <asp:UpdatePanel ID="Updatepanel1" runat="server" UpdateMode="Conditional">
            <ContentTemplate>
                <asp:Label ID="Label1" Text="I am an example" runat="server" />
            </ContentTemplate>
        </asp:UpdatePanel>
    </ContentTemplate>
</telerik:radwindow>

In Example.aspx.cs

   protected void RadGrid_ItemCommand(object sender, GridCommandEventArgs e)
    {

         this.RadWindow1.Visible= true;

}

When I click the button in the RadGrid to set the RadWindow to be visible, the .cs code executes but the RadWindow does not appear on the page.

Any help will be much appreciated.

Thanks,

Jack

when i try use 2  Horizontal mode timeline  in one page 

first timeline i can click renders buttons to navigate between periods

but second timeline buttons don't work

is there any solution to solve it ?

In Old Telerik Version, RangeValidator  triggers server side validation on Keypress.

But, in the latest Telerik version RangeValidator  triggers server side validation on Lostfocus (onBlur).

My Requirement is to trigger server side validation on KeyPress

Can you guide me how I can accomplish this with the latest Telerik Version. 

This is the current code:

                                RangeValidator rng = new RangeValidator();
rng.ControlToValidate = sControlID;
rng.CssClass = "val";
rng.Display = ValidatorDisplay.Dynamic;
rng.EnableClientScript = true;
rng.ErrorMessage = RangeErrorMessage;
rng.MaximumValue = RangeMaxVal;
rng.MinimumValue = RangeMinVal;
rng.EnableClientScript = true;//Add the validator
TextControl.Parent.Controls.Add(rng);
Page.Validators.Add(rng);

Thanks in Advance.

Hello,

I have a RadGrid with a custom EditForm that I use to insert new items.  Within this form is a RadAsyncUpload control.  How do I make this control required without server side code?

Also, I'm a beginner with Telerik and have seen countless code snippets online.  None of them address having the control inside an EditForm, so if your solution could show a complete example vs code snippet I would appreciate it.

Class Type - RadCombobox

Value=1  text=one  --> Select this value --> visible radcombobox 1 (Textbox1 visible false)

value=2  text=two --> Select this value--> visible radcombobox 1 (Textbox1 visible false)

value=3 text=others --> visible Textbox1 --> radcombobox 1(visible false)

then i click the class Type(Others)

all the controls in RadGriview.

i need solution using javascript

Please help.....