How To Change GridView Header Text Programmatically

Aug 14, 2010

I have wrote the below code to get and show data in GridView

Code:

[code]....

Now i want to change the captions of each column programatically.

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I want to access the header text of bound fields programatically. suppose i have GridView1 with following bound fields:

<asp:BoundField Visible="false" DataField="ID" HeaderText="ID" />              <asp:BoundField DataField="Title" HeaderText="Title" />              <asp:BoundField Visible="false" DataField="Description" HeaderText="Description" />

how can I access their header text programmatically ( display it(either using response.write or any label)

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Mar 29, 2011

i want to change the header text of the gridview using Design.. from <TemplateField HeaderText="">

i created a variable in code behind which is public and set the value in that variable and then i tried to call that variable over here as below:

<TemplateField HeaderText = '<%= VariableCallHere %>'

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I have a gridview I bound a DataTable with that Gridview Its dynamic so no hardcode Text in desin.

I tried to change it after Databound and in PreRender of gridview but no Success.

Actually there are Underscores('_') in text and I want to Replace it with space.

Below is code

<asp:GridView ID="grdSearchResult" runat="server" AutoGenerateColumns="True" Width="99%" OnPreRender="grdSearchResult_PreRender"
OnRowCreated="grdSearchResult_OnRowCreated" OnPageIndexChanging="grdSearchResult_PageIndexChanging">
<HeaderStyle ForeColor="White" BackColor="#215B8D" />
<AlternatingRowStyle BackColor="#F7F7F7" />
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protected void grdSearchResult_PreRender(object sender, EventArgs e)
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for (int i = 0; i < grdSearchResult.Columns.Count; i++)
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Let's say I have unsorted 2 types of data.2 list box contains. 1,2,15,6,4 and apple, banana, carrot, dove, eggplant. . How can I sort it then make it as my HeaderText for GridView Column after a button is clicked?.

Data in GridView(headertext column)

apple banana eggplant dove carrot

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I am having a asp.net page where I am using Ajax Tab control. When i am running the page, the text of all tab is not able to view. I want to change the height of Header text.

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I am using the following code to change the header based on the session variable

[code]....

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Mar 7, 2011

I have implemented master pages using this example How to implement a status bar in an ASP.NET application?. I have a property on my SiteMaster.cs inherited MasterPage called Environment. On my MasterPage.master I have this code:

<body>
<form id="frmMaster" runat="server">
<.. some content removed for brevity ...>
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</form>
</body>

What I would like to do is evaluate this.Environment and if it is "LIVE" then colour the background of this.Environment text red, and if it's "TEST" colour it yellow. How would I do this?

UPDATE I've just added this code to MasterPage.master

protected void Page_Load(object sender, EventArgs e)
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lblEnvironment.Text = this.Environment;
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lblEnvironment.BackColor = System.Drawing.Color.Red;
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The page loads, but the text does not get set, it's blank! Also the old text, that was populated is now blank too (I left the old code there for now). I also get a warning in Visual Studio:

'ASP.masterpage_master.Page_Load(object, System.EventArgs)' hides inherited member SiteMaster.Page_Load(object, System.EventArgs)'. Use the new keyword if hiding was intended.

UPDATE2: This is what I have in SiteMaster.cs

using System;
using System.Web.UI;
public class SiteMaster : MasterPage
{
public string StatusText { get; set; }
public string StatusTime { get; set; }
public string Environment { get; set; }
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{
if (!this.IsPostBack)
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if (Session["status"] != null)
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this.StatusTime = Session["statusTime"].ToString();
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[Code]....

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I've a gridview in my web form and I'm using a the following code in my web form's Save button:

foreach (GridViewRow row in gvList.Rows)
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I'm trying to programaticaly change the 'headerText' property of a GridView boundfield.

[Code]....

Apparently all goes weel, because i ca see, in a a debug session, the control initial value, and after i change it, the value changes.

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protected void gv2_RowDataBound(object sender, GridViewRowEventArgs e)
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Nov 26, 2015

The Headertext of my column only changes after clicking the button a second time round, why is this? I obviously need it to work on the first click.

HTML Code:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="ChangeHeader.aspx.vb" Inherits="ColHeaderChangeTest.ChangeHeader" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">

[code]....

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I want to change Gridview Header column names dynamically with if condition.

for example

IF condition 1 

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IF condition 2 

UserID | Full Name | DOB | Balnace | Date 

How to change Header column name for single Gridview dynamically ?  

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