how to add column in existing gridview with textbox control

Question

0.00/5 (No votes)

See more:

I have this html coding. it will display three columns col1,col2,col3.
Now i want to add column col4 in the existing gridview table on button click add_column()
how to do this please help me.......thanks in advance.

XML

<asp:GridView ID="grid" runat="server" AutoGenerateColumns="false"
            >
    <Columns>
    <asp:TemplateField HeaderText="Col1">
    <ItemTemplate>
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    </ItemTemplate>
    </asp:TemplateField>
    <asp:TemplateField HeaderText="Col2">
    <ItemTemplate>
    <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
    </ItemTemplate>
    </asp:TemplateField>
    <asp:TemplateField HeaderText="Col3">
    <ItemTemplate>
    <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
    </ItemTemplate>
    </asp:TemplateField>

    </Columns>
    </asp:GridView>

Posted 11-Jan-13 0:08am

surendra00

Updated 13-Jan-13 6:52am

v2

Add a Solution

Comments

[no name] 11-Jan-13 6:09am

your question is not clear

surendra00 13-Jan-13 12:53pm

sir, i have updated my question....Please help me.

2 solutions

Solution 2

Hi,

You need to create a template class to represent a dynamic template column.

C#

public class MyTemplate : ITemplate
{
 private DataControlRowType tempType;
 private string colName;

 public MyTemplate(DataControlRowType type, string col)
{
 tempType = type;
 colName = col;
}

//Method of ITemplate Interface, called on databinding of gridview.

public void InstantiateIn(Control container)
{

// Define the col Header and Row type in here.
switch (templateType)
            {
                case DataControlRowType.Header:
			//Header
			 container.Controls.Add(//probably a label);
			break;
		 case DataControlRowType.DataRow:
			//RowType
			 container.Controls.Add(//TextBox in your case);
			break;
                 }
    }
}

On button click, create a templated field.

C#

TemplateField fld = new TemplatedField();
fld.ItemTemplate = new MyTemplate(DataControlRowType.DataRow, "col4");
fld.HeaderTemplate = new MyTemplate(DataControlRowType.Header, "col4");

GridView1.Columns.Add(fld);

This will add the templated column to your gridview. Note that, you need to do a databind again to view your new column.

Hope this helps.

Posted 13-Jan-13 8:52am

NeerajBhagat09

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)

Sandeep Mewara · Accepted Answer · 2013-01-11T04:19:00

Solution 1

Adding column on button click would need a rebind of data. Based on what you have, defined columns, if you want to add a new column you need to write for it in your code behind when you click add button. Try out.
Use: gridView.Columns.Add() method.

Posted 11-Jan-13 4:19am

Sandeep Mewara

Comments

surendra00 12-Jan-13 3:11am

can u write code for this .....Please

Sandeep Mewara 12-Jan-13 3:37am

What would you do if I do this?

surendra00 13-Jan-13 10:15am

sir ,please solve my problem thanks in advance