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Format a Date when DateTime.MinValue

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Bernard
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Bernard asked on 27 Sep 2010, 03:30 PM
Hello,
I use a RadGrid with GridDateTileColumn. Sometime, I have DateTime.MinValue.
I would like to display a Blank instead of 01/01/0001
Is there a convenient way to do that ?
Thanks a lot

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Veli
Telerik team
answered on 29 Sep 2010, 03:11 PM
Hi Bernard,

You can use RadGrid's ItemDataBound event for that. Suppose your DateTime field is named "Date", then you would have:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item is GridDataItem)
    {
        GridDataItem item = (GridDataItem)e.Item;
        DateTime date = (DateTime)DataBinder.Eval(item.DataItem, "Date");
        if (date == DateTime.MinValue)
        {
            item["Date"].Text = "";
        }
    }
}

The above code will set an empty cell text for all rows that have a value of DateTime.MinValue for the Date field.

Veli
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Bernard
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answered on 30 Sep 2010, 09:03 AM
Hi Veli,

Many thanks for your answer, It's exactely what I was looking for...

Regards
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mark baer
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answered on 19 Mar 2012, 09:18 PM
Has this solution changed?  Doesn't seem to be working for me:

 

 

 

 

<P><FONT color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"><</FONT></FONT></FONT><FONT color="#800000" size="2" face="Consolas"><FONT
color="#800000" size="2" face="Consolas"><FONT color="#800000" size="2" face="Consolas">telerik</FONT></FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">:</FONT></FONT></FONT><FONT color="#800000"
size="2" face="Consolas"><FONT color="#800000" size="2" face="Consolas"><FONT
color="#800000" size="2"
face="Consolas">GridBoundColumn</FONT></FONT></FONT><FONT size="2" face="Consolas"><FONT
size="2" face="Consolas"> </FONT></FONT><FONT color="#ff0000" size="2" face="Consolas"><FONT
color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000" size="2" face="Consolas">DataField</FONT></FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">="Last
Updated"</FONT></FONT></FONT><FONT size="2" face="Consolas"><FONT size="2" face="Consolas">
</FONT></FONT><FONT color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000"
size="2" face="Consolas"><FONT color="#ff0000" size="2"
face="Consolas">HeaderText</FONT></FONT></FONT><FONT color="#0000ff" size="2"
face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff"
size="2" face="Consolas">="Achieved?"</FONT></FONT></FONT><FONT size="2" face="Consolas"><FONT
size="2" face="Consolas"> </FONT></FONT></P>
<P><FONT size="2" face="Consolas"><FONT size="2"
face="Consolas"> </FONT></FONT><FONT color="#ff0000" size="2" face="Consolas"><FONT
color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000" size="2" face="Consolas">UniqueName</FONT></FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2"
face="Consolas">="colLastUpdatedDate"</FONT></FONT></FONT><FONT size="2" face="Consolas"><FONT
size="2" face="Consolas"> </FONT></FONT><FONT color="#ff0000" size="2" face="Consolas"><FONT
color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000" size="2" face="Consolas">DataFormatString</FONT></FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">="{0:d}"</FONT></FONT></FONT><FONT
size="2" face="Consolas"><FONT size="2" face="Consolas"> </FONT></FONT><FONT
color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000" size="2" face="Consolas"><FONT
color="#ff0000" size="2"
face="Consolas">FilterControlWidth</FONT></FONT></FONT><FONT color="#0000ff"
size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">="60"</FONT></FONT></FONT><FONT size="2"
face="Consolas"><FONT size="2" face="Consolas"> </FONT></FONT></P>
<P><FONT size="2" face="Consolas"><FONT size="2"
face="Consolas"> </FONT></FONT><FONT color="#ff0000" size="2" face="Consolas"><FONT
color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000" size="2" face="Consolas">DataType</FONT></FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2"
face="Consolas">="System.DateTime"></FONT></FONT></FONT></P>
<P><FONT color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"> </FONT></FONT></FONT><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><</FONT></FONT></FONT><FONT
color="#800000" size="2" face="Consolas"><FONT color="#800000" size="2" face="Consolas"><FONT
color="#800000" size="2" face="Consolas">HeaderStyle</FONT></FONT></FONT><FONT
size="2" face="Consolas"><FONT size="2" face="Consolas"> </FONT></FONT><FONT
color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000" size="2" face="Consolas"><FONT
color="#ff0000" size="2" face="Consolas">Width</FONT></FONT></FONT><FONT color="#0000ff"
size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">="100px"</FONT></FONT></FONT><FONT
size="2" face="Consolas"><FONT size="2" face="Consolas"> </FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">/></FONT></FONT></FONT></P>
<P><FONT color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"> </FONT></FONT></FONT><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><</FONT></FONT></FONT><FONT
color="#800000" size="2" face="Consolas"><FONT color="#800000" size="2" face="Consolas"><FONT
color="#800000" size="2" face="Consolas">ItemStyle</FONT></FONT></FONT><FONT
size="2" face="Consolas"><FONT size="2" face="Consolas"> </FONT></FONT><FONT
color="#ff0000" size="2" face="Consolas"><FONT color="#ff0000" size="2" face="Consolas"><FONT
color="#ff0000" size="2" face="Consolas">Width</FONT></FONT></FONT><FONT color="#0000ff"
size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">="100px"</FONT></FONT></FONT><FONT
size="2" face="Consolas"><FONT size="2" face="Consolas"> </FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">/></FONT></FONT></FONT></P>
<P><FONT color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"><FONT color="#0000ff" size="2"
face="Consolas"> </FONT></FONT></FONT><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"></</FONT></FONT></FONT><FONT
color="#800000" size="2" face="Consolas"><FONT color="#800000" size="2" face="Consolas"><FONT
color="#800000" size="2" face="Consolas">telerik</FONT></FONT></FONT><FONT
color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT
color="#0000ff" size="2" face="Consolas">:</FONT></FONT></FONT><FONT color="#800000"
size="2" face="Consolas"><FONT color="#800000" size="2" face="Consolas"><FONT
color="#800000" size="2"
face="Consolas">GridBoundColumn</FONT></FONT></FONT><FONT color="#0000ff" size="2"
face="Consolas"><FONT color="#0000ff" size="2" face="Consolas"><FONT color="#0000ff"
size="2" face="Consolas">></FONT></FONT></FONT></P>


Here is my C# code...

 

 

 

if (e.Item is GridDataItem) <BR> { <BR> //HyperLink editLink =
(HyperLink)e.Item.FindControl("EditLink"); <BR> var editLink =
(System.Web.UI.HtmlControls.HtmlAnchor)e.Item.FindControl("EditLink"); <BR>
editLink.Attributes["href"] = "#"; <BR> //editLink.Attributes["onclick"] =
String.Format("return ShowEditForm('{0}','{1}', '{2}', '{3}', '{4}');",
e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["ReportDueDateId"],
e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["BoxId"],
e.Item.ItemIndex, _authToken, _applicationApiKey); <BR>
editLink.Attributes["onclick"] = String.Format("return ShowEditForm('{0}','{1}',
'{2}', '{3}', '{4}');",
e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["Id"],
e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["BoxId"],
e.Item.ItemIndex, _authToken, _applicationApiKey); <BR> <BR> var deleteLink =
(System.Web.UI.HtmlControls.HtmlAnchor)e.Item.FindControl("DeleteLink"); <BR>
deleteLink.Attributes["href"] = "#"; <BR> //deleteLink.Attributes["onclick"] =
String.Format("return confirmDeleteDueDate('{0}');",
e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["ReportDueDateId"]); <BR>
deleteLink.Attributes["onclick"] = String.Format("return
confirmDeleteDueDate('{0}');",
e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["Id"]); <BR> <BR> <BR>
GridDataItem item = (GridDataItem)e.Item; <BR> <BR> DateTime date =
(DateTime)DataBinder.Eval(item.DataItem, "LastUpdated"); <BR> <BR> if (date ==
DateTime.MinValue) <BR> { <BR> <BR> item["LastUpdated"].Text = ""; <BR> <BR> }
<BR> }<BR><BR><BR></FONT>

 

 


0
Tsvetina
Telerik team
answered on 23 Mar 2012, 08:38 AM
Hello Mark,

The code provided by my colleague is still valid. Could you please repost yours, as the markup does not seem to correspond to your grid declaration and also some unwanted formatting appears in your server code.

All the best,
Tsvetina
the Telerik team
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Adhip
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answered on 03 Sep 2017, 01:22 PM

Hi Tsvetina,

I'm searching for the same solution but for the kendo MVC Grid.

Can you please help?

Regards,

Adhip

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Bernard
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Veli
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Bernard
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mark baer
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Tsvetina
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Adhip
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