Data get truncated in tooltip of Gridview

Question

0.00/5 (No votes)

See more:

I want to show tooltip of each row of GridView. For which i have written following code on
RowDataBound event of Grid :

C#

DataSet dtset = new DataSet("root");
            dtset.ReadXml(Server.MapPath(@"~\XMLFILE.xml"));
            try
            {
                if (dtset != null & dtset.Tables.Count > 0)
                {
                    for (int colIndex = 0; colIndex < e.Row.Cells.Count; colIndex++)
                    {
                        // Do database lookup
                        //string ttString = "Result of database lookup";
                        // strReturn = strReturn.Replace("[Page]", strPage);
                        DataRow [] dr = dtset.Tables[0].Select("Measure ='"+e.Row.Cells[0].Text.ToUpper()+"'");
                        if(dr!= null && dr.Length >0)
                        {
                              // First approach                         
                              e.Row.Cells[colIndex].Attributes.Add("title", Convert.ToString(dr[0][1]));
                             // Second approach
                            e.Row.ToolTip = Convert.ToString(dr[0][1]);

                        }
                    }
                }
            }

I am reading all tool tips from XML file and assigning them to Row as per their title.

Now my Problem is I have along text to show in tooltip and above code works fine but string is truncated because of length. Length of string is almost 250-300 characters including new line.

Any idea why string is truncated on its own and what can be done to sort it out ?

Posted 2-Jul-13 18:56pm

deepakdynamite

Updated 3-Jul-13 1:52am

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

PrissySC · Answer 1 · 2013-07-03T02:15:00

Example using draw: http://msdn.microsoft.com/en-us/library/system.windows.forms.tooltip.draw.aspx[^]

I think essentially that you need to measure the text to display without any truncating and allow wrap (if too long for the screen or tooltip popup).

VB

' Determines the correct size for the button2 ToolTip.
    Private Sub toolTip1_Popup(ByVal sender As System.Object, _
        ByVal e As PopupEventArgs) Handles toolTip1.Popup

        If e.AssociatedControl Is button2 Then

            Dim f As New Font("Tahoma", 9)
            Try
                e.ToolTipSize = TextRenderer.MeasureText( _
                    toolTip1.GetToolTip(e.AssociatedControl), f)
            Finally
                f.Dispose()
            End Try

        End If
    End Sub

I pulled that code from here: http://msdn.microsoft.com/en-us/library/system.windows.forms.tooltip.ownerdraw.aspx[^]