.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

how to assign string value to a label control

Posted By:      Posted Date: August 23, 2010    Points: 0   Category :ASP.Net

When i do the following i am getting object ref not set to instance of an object:

there is value in string variable would like to assign to a label.

lblFilename.Text = strFilename


Thank you very much for the helpful info

View Complete Post

More Related Resource Links

Control the length of string in label which is in datalist


I have a label control in datalist. When thw word is long, the text of label corrupts the design. Label hasn't a multiline property.

I tried different ways . I tried to use textbox like a label but this time I can't give a link to textbox.I tried to use MeasureString() method for the label. But I couldn't do it.

Please help me... Thanks....

How do I write a string coming from a Javascript function in my Label control?


Hi all,

This is what I tried doing in my Javascript function (partially):

catch (err) {
              document.getElementById("lblError").innerHTML = err.description;

IE output of my lblError label component is a long id name like this:

<td>Last Error: <span id="ctl00_ctl00_ContentPlaceHolder_GlobalMasterPage_ContentPlaceHolder_DashboardMasterPage_lblError">No errors at this time.</span>

how do I look up for lblLabel in this case?

Thank you

set an asp control property value with a label value


hi.. please help me on this

i have a control to upload multiple files on server. now i want to set the control's "upload folder"  property with a dynamic value which is different for each user..

<cc1:FileUploader ID="FileUploader1" runat="server">

                    <cc1:FileSaverAdapter FolderName= "FOLDERNAME" />


here i want this 'FolderName' value to be replaced with some label value. how can i do this ?

Thanks in advance .. :)

label concentation with a string variable


I am trying to do something as simple as this in visual studio.net

double num1 = 2;

num1 = num1 * 2;

 Labe1.Text = "The result shown is" & num1.ToString();


but I keep getting the error message operator '&' cannot be applied to operands of type 'string' and 'string'

Accessing Label Control In a listview using Javascript



I have a Button and Label nested inside a ListView.

When a User clicks the button i want the Label to display a specific value eg"Pass". Of course being a Listview the Label value will be relevant to the row the button was clicked on.

I want all this to happen on client side, but i am struggling to access the Label via my Javascript??

Any suggestions and examples Would be much appreciated..

Label Control


Hello All,

I know i do this alot in my coldfusion apps but just having some difficulty with it with .net or may be it does not apply here.

I have a Label that i am trying to put text and dynamic info into..... Pretty much like  "Bank Name" which is a text and the exact name coming from my query... I dont know if its possible with .Net.

With Coldfusion i can just do

<td  align="center" valign="middle">Relationship-<cfoutput>#checkname.relationshipname#</cfoutput> </td>


Any ideas please

Need help with validating an alphanumeric string within a textbox control.

Hi everyone,I am developing a simple WinForms app for a presentation next week and need to validate that a particular string in a particular textbox is alphanumeric.  I have included the code from the button click event handler below: // Alphanumeric private void btnValidate4_Click(object sender, EventArgs e) { try { if (txtAlphanumeric.Text == "") MessageBox.Show("Please enter an alphanumeric string before clicking the 'Validate' button.", "Whoa there, pardner!!", MessageBoxButtons.OK, MessageBoxIcon.Information); else { Regex rgxAlphanumeric = new Regex("^[a-zA-Z0-9]*$"); Match alphaNumericMatch = rgxAlphanumeric.Match(txtAlphanumeric.Text); if (!alphaNumericMatch.Success) MessageBox.Show("The string supplied does NOT match the specified pattern.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error); else { MessageBox.Show("The supplied string matches the specified pattern.", "Success!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);

Displaying XML in label control using xslt formatting

I am using an XML file as a database and I am using a text box and a button to search for a node within the xml file and display that node on a label control using the format required by the xslt file.  I have created an example to use as the real file is rather big. If I add an xml control to the page and set the documentSource and transformSource to my existing files, it will display the node on the page in the correct format.  If I try and pass the query to the label, it only shows the inner text of the XML tags with no spaces and no formatting as specified in the xslt file. Is there a way to pass the query to a label control and render it using the formatting specified in the xslt file?  In all honesty, it doesn't even have to be a label if I can get the query to render as specified in the xslt file in any way shape or form, I would be happy with that.I feel like I am just one statement away from having it complete but for the life of me can't seem to figure out what it is.  Any help is apprecaited.XML File:<?xml version="1.0" encoding="utf-8" ?><?xml-stylesheet type="text/xsl" href="animal.xslt"?><animals>    <animal name="dog">        <color>brown</color>        <hair>lo

Assign "" to a string

Is there a way to assign text containing the double quotation "" (eg. string test = "type="one"")  to a C# string? Thanks, Ben

Get value of a label control inside the DetailsView

Hi everyone, I have a databound label control (i.e. Label 3) inside an Item Template that's in a DetailsView control. I just need to get the value of those label and compare it to some string. I tried several ways (i.e. Find control, DetailsView.Row) but nothing seems to work. I don't know if I'm using the FindControl methos correctly or if I need to access the Row first and do the findcontrol method.  Protected Sub DetailsView4_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles DetailsView4.DataBound 'If (DetailsView4.Rows(2).Cells(1).ToString = "Regular") Then 'Label3.ForeColor = Drawing.Color.Azure 'End If 'Dim StatusQualifierContainer As Label 'Dim S As String 'StatusQualifierContainer = DetailsView4.FindControl(Label3.Text) 'S = StatusQualifierContainer.Text 'If S = "Regular" Then 'Label5.ForeColor = Drawing.Color.Aqua 'End If 'Dim C As Label = DetailsView4.FindControl("Label3") 'If C.Text = "Regular" Then 'Label3.ForeColor = Drawing.Color.DarkBlue 'End If 'Dim headerRow As DetailsViewRow = DetailsView4.HeaderRow 'Dim lblText As Label = CType(headerRow.FindControl("Label3"), Label)

How do grab the value from label control into jQuery?

I have the following jQuery code working as it is (passing the value of 'test") but what I want to do is to pass the value of the label control (lblNames). I'm using the label control to collect the uploaded file names. Is there a way?jQuery:$(document).ready(function () {        $("#btnUpload").click(function () {            $("#Notes", top.document).val('test');        });    });ASPX code:<asp:Label ID="lblNames" runat="server" visible="true" ></asp:Label>

Show Calendar Control SQL data value using Label control

Hi, I have a Calendar Control which is getting certain dates from SQL database and shows them in gray colour using following SQL statements: protected void Calendar1_DayRender(object sender, DayRenderEventArgs e) { DateTime nextDate; if (dShows != null) { foreach (DataRow dr in dShows.Tables[0].Rows) { nextDate = (DateTime)dr["Date"]; if (nextDate == e.Day.Date) { e.Cell.BackColor = System.Drawing.Color.DarkGray; } } }  SELECT Count(Mytable.ID), Mytable.Date,MAX(Location.SLocation) as Location FROM Mytable INNER JOIN Location ON Mytable.Sh_ID=Location.Sh_ID GROUP BY Mytable.Date Everything works fine but I want to Show Location and Date also under the calendar control usnig Label control so when user clicks highlighted date it shows Date and Location (only the ones which are coming from SQL database and are highlighted) using Label control. Thank you.      

find the label control of gridview in save button event in C#

hi, every one..i want save the gridview in buttonsave event..here i wrote the code like thisfor (int i=0;i<gridview1.row.count;i++){label lbl=(label)gridview1.rows[i].findcontrol("lbl");Textbox txtname=(Textbox)gridview1.rows[i].findcontrol("txtname");}here i got the textbox value but am not getting label value how to get that label value..thanks in advance

How to set a string field with people picker control group

Hi Guys I have a problem with a form list, when I need to set a string field with de content of people picker control that have more than one "user". Is there any way to put in string a list of user like the people picker control shows in a form? The really problem is I don't know how to read an array of user in a formula rule. any example or idea should be appreciated. tnks.  

What type variable can I use to assign a possible Null or a string to?



I am converting a VB6 app to VB2008 and are having problems with replacing Variant variables.

I used Variant in cases where the data might be string or Null.

Is there a way I could check for Null and just set the string to zero lenght?

Any help would be appreciated.



change the color of label control inside gridview


Hi i am saving color as a string in database 

i have a gridview control

 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowUpdating="Update_Schedule"
                    OnRowDeleting="Delete_Schedule" OnPageIndexChanging="OnPaging" OnRowEditing="Edit_Schedule"
                    OnRowCancelingEdit="CancelEdit" PageSize="10">
                                <asp:CheckBox ID="Todo" runat="server" AutoPostBack="true" Height="23px" OnCheckedChanged="CheckedChanged" />
                                <asp:HiddenField ID="hdn_ScheduleID" runat="server" Value='<%#Eval("ID") %>' />
                                <asp:Label Text='<%# Eval("Title") %>' runat="server" ID="lbl1"></asp:Label>

How to populate a link on a Label control?


I have a requirement where I need to place a link inside a label. I am giving the method below for your reference.

  public override void PopulateDataUI(Object o)
              CustomerInvoice data = o as CustomerInvoice;

              CIPI_InvoiceNumber.Text = data.InvoiceNumber.ToString();

            //I have written as below but it's not working.    

            //LinkLabel lnk = new LinkLabel();
           // lnk.Text = data.InvoiceNumber;
           // CIPI_CustomerName.Text = lnk.Text;


       NB:     CIPI_InvoiceNumber is the name of the Label I am using.


Can anybody please  suggest me a solution. I am working on C#.net 3.5 and my project is a Windows Application






ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend