get RadGrid Columns Width

[Anupriya]

I have created Telerik Grid like this and item Bound Function also shown like as follows:

Please tell me if I resized the columns then how will I get the width of column present in RadGrid.Please find that telerik Auto Generated Column is set to true.



"

Namespace="Microsoft.SharePoint.WebControls" %>

<%@ Register Assembly="Telerik.Web.UI, Version=2010.2.826.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<asp:Table runat="server">

<asp:TableRow>

<asp:TableCell>

<telerik:RadGrid ID="gridForPreNewEdit2" AllowPaging="true" ShowFooter="false" runat="server" AutoGenerateColumns="true" GridLines="Both">

</telerik:RadGrid>

</asp:TableCell>

</asp:TableRow>

</asp:Table>

void grdViewForPreview_ItemDataBound(object sender, GridItemEventArgs e)

{

try

{

 

if (e.Item is GridDataItem)

{

GridDataItem item = e.Item as GridDataItem;

SPWeb web = SPContext.Current.Web;

SPList list = web.Lists[new Guid(ddlSrcList.SelectedValue)];

 

SPListItem itemCol = list.Items.Add();

 

var contex = SPContext.GetContext(this.Context, 0, list.ID, list.ParentWeb);

 

foreach (GridColumn column in item.OwnerTableView.RenderColumns)

{

if (column.HeaderText == "Delete")

{

ImageButton btnDeleteFor = new ImageButton();

btnDeleteFor.ID = column.UniqueName;

btnDeleteFor.Enabled = false;

item[column.HeaderText].Controls.Clear();

item[column.HeaderText].Controls.Add(btnDeleteFor);

}

else

{

foreach (ListItem lstItem in lbDisplayedCols.Items)

{

if (lstItem.Text.ToLower().Trim() == column.HeaderText.ToLower().Trim())

{

SPField listField = list.Fields[column.HeaderText];

 

if (listField.Type != SPFieldType.DateTime && listField.Type != SPFieldType.User)

{

Panel pnlForBFC = new Panel();

pnlForBFC.ID = "Field2_" + listField.InternalName;

BaseFieldControl bfc = listField.FieldRenderingControl;

bfc.ID = "Field_" + listField.InternalName;

 

bfc.ControlMode = SPControlMode.New;

 

bfc.EnableViewState = true;

bfc.RenderContext = contex;

bfc.ItemContext = contex;

bfc.IsValid = true;

bfc.Visible = true;

pnlForBFC.Controls.Add(bfc);

pnlForBFC.Enabled = false;

 

item[column.HeaderText].Controls.Clear();

item[column.HeaderText].Controls.Add(pnlForBFC);

}

else if (listField.Type == SPFieldType.User)

{

 

PeopleEditor peopleEditor = new PeopleEditor();

 

item[column.HeaderText].Controls.Clear();

item[column.HeaderText].Controls.Add(peopleEditor);

}

else if (listField.Type == SPFieldType.DateTime)

{

DateTimeControl dtControl = new DateTimeControl();

dtControl.ID = "Field_" + listField.InternalName;

dtControl.Enabled = false;

item[column.HeaderText].Controls.Clear();

item[column.HeaderText].Controls.Add(dtControl);

}

　

}

}

}

}

}

else if (e.Item is GridFooterItem)

{

GridFooterItem itemForFooter = e.Item as GridFooterItem;

foreach (ListItem chosenListCol in lbDisplayedCols.Items)

{

if (ViewState[chosenListCol.Text] != null)

{

Label lblForFooter = new Label();

lblForFooter.ID = "Field_" + chosenListCol.Text;

lblForFooter.Text = "0";

lblForFooter.Width = Unit.Percentage(100);

lblForFooter.BorderColor = Color.Black;

lblForFooter.BorderStyle = BorderStyle.Solid;

lblForFooter.BorderWidth = 1;

itemForFooter[chosenListCol.Text].Controls.Clear();

itemForFooter[chosenListCol.Text].Controls.Add(lblForFooter);

}

}

}

[Tsvetina]

Hello Anupriya,

You can access the columns width by using e.Column.HeaderStyle.Width in the ColumnCreated event of RadGrid which is thrown for each auto-generated GridColumn. Additionally, it is recommended to address columns by UniqueName (column.UniqueName) instead of HeaderText, since this is the safest way (the HeaderText that you use to access columns is different from the UniqueName of the column in Q3 2010, for example).

All the best,
Tsvetina
the Telerik team

[Jesse]

It seems like I can only get the width for columns that I've specified the width for? This code gives me 0.0 except for the column I set the width for. I am executing this code in rgResults_ItemDataBound. Is that the wrong place to do it?

foreach (GridColumn column in rgResults.Columns)
{
    int w = column.HeaderStyle.Width.Value;
}

[Pavlina]

Hi Jesse,

Indeed using the pointed code you can retrieve the column width of the columns that have specified width. You can retrieve the widths of all columns on client-side, store them in an object and store this object in a hidden field. Then you can access this field on server and get the desired widths.

Regards,
Pavlina
Telerik

 

 

[Jesse]

Pavlina,

Thank you for your response. It is a good idea. Unfortunately, I haven't been able to do anything client side. I've tried this:

var grid = $find("<%=rgResults.ClientID%>");

And it always returns null. This was using a standard script manager. I thought maybe I needed to use a RadScriptManager instead to be able to do this, but that's giving me a NullReferenceException when I add that to the page. So I don't really have any way of accessing the RadGrid from the client side at this time.

[Pavlina]

Hi Jesse,

I have replied your other ticket with the same question and you can see the answer here:
http://www.telerik.com/forums/get_mastertableview-not-working

If you need additional assistance I will ask you to continue our communication there.

Regards,
Pavlina
Telerik