Label in Tab Panel Using C#

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Hi All,

Anyone help me how can I set label generated in C# to be positioned at the center of the whole tab panel? (Please see below link)

This is the output I want to achieve:
http://i.stack.imgur.com/BE8WY.png[^]

This is my code:

C#

if(panel.Controls.Count<1)
                {
                    System.Web.UI.HtmlControls.HtmlGenericControl panelDIV = new System.Web.UI.HtmlControls.HtmlGenericControl("DIV");
                    panelDIV.ID = "panelDIV";
                    panelDIV.Style.Add(HtmlTextWriterStyle.TextAlign, "center");
                    panelDIV.Style.Add(HtmlTextWriterStyle.Width, "100%");
                    panelDIV.Style.Add(HtmlTextWriterStyle.Position, "center");
                    panelDIV.Style.Add(HtmlTextWriterStyle.FontStyle, "Arial");


                    System.Web.UI.WebControls.Label newTabel = new System.Web.UI.WebControls.Label();
                    newTabel.Text +=  "no chart to display";
                    newTabel.Font.Bold = true;
                    newTabel.Font.Size=16;
                    newTabel.Style.Add("text-align", "center");
                    panelDIV.Controls.Add(newTabel);
                    panel.Controls.Add(panelDIV);
                }

Question: how to set label generated in C# to be positioned at the center of the whole tab panel?
Thanks.

Posted 28-Oct-15 5:16am

Member 11999641

Updated 28-Oct-15 6:06am

v6

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Manas_Kumar · Answer 1 · 2015-10-28T05:38:00

Solution 1

You can do it in following ways:

Option1: Using Style.Add()

C#

newTabel.Style.Add("text-align", "center");

Option2: Using CSS class

Add following class in apsx file

CSS

.MyClass {
    text-align: center;
}

Add following code in code-behind file:

C#

newTabel.CssClass = "MyClass";

Posted 28-Oct-15 5:38am

Manas_Kumar

Updated 28-Oct-15 5:40am

v2

Comments

Member 11999641 28-Oct-15 12:06pm

hi Manas_Kumar, thanks for your reply. have tried your solution but still get the same output. I would like the label to appear at the center of the whole tab panel, please look at my updated code thanks!

Richard Deeming · Answer 2 · 2015-10-28T07:41:00

Vertical centering is one of the hardest things to do in CSS. :)

Centering in CSS: A Complete Guide[^]

If you can use Flexbox[^], then it's relatively simple:

CSS

.parent {
    display: flex;
    justify-content: center;
    align-items: center;
}

If you can use 2D transforms[^], then this should work:

CSS

.parent {
    position: relative;
}
.child {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

If you're stuck with supporting IE8 or earlier, then there's no real solution, unless both the parent and child elements are a fixed height.