add rows to grid depend upon textbox value

Question

0.00/5 (No votes)

See more:

I have following code to add rows to the datatable. It will take the number from textbox value and will add that much number of rows to the gridview. Its looping correctly thr for loop but adding only one row to grid.

C#

private void CreateGridViewRows()
        {
            DataTable dt = new DataTable();
            DataRow dr = null;
            for (int i = 1; i <= int.Parse(txtResources.Text.Trim()); i++)
            {
                
                 
                DataRow drCurrentRow = dt.NewRow();
                dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
                dt.Columns.Add(new DataColumn("Col1", typeof(string)));
                dt.Columns.Add(new DataColumn("Col2", typeof(string)));
                dt.Columns.Add(new DataColumn("Col3", typeof(string)));
                dt.Columns.Add(new DataColumn("Col4", typeof(string)));
                dt.Columns.Add(new DataColumn("Col5", typeof(string)));
                dt.Columns.Add(new DataColumn("Col6", typeof(string)));
                dt.Columns.Add(new DataColumn("Col7", typeof(string)));
                dr = dt.NewRow();
                dr["RowNumber"] =1;
                dr["Col1"] = string.Empty;
                dr["Col2"] = string.Empty;
                dr["Col3"] = string.Empty;
                dr["Col4"] = string.Empty;
                dr["Col5"] = string.Empty;
                dr["Col6"] = string.Empty;
                dr["Col7"] = string.Empty;
                dt.Rows.Add(dr);
                
            }

Any suggestions pleas eto code changes.Thanks in advance.

Posted 11-Jan-16 20:12pm

Telstra

Add a Solution

2 solutions

Solution 2

Hi,
This is not right way to create data table
you shod write add column out side loop

try this it will work

C#

private void CreateGridViewRows()
        {
            DataTable dt = new DataTable();
            DataRow dr = null;
            dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
            dt.Columns.Add(new DataColumn("Col1", typeof(string)));
            dt.Columns.Add(new DataColumn("Col2", typeof(string)));
            dt.Columns.Add(new DataColumn("Col3", typeof(string)));
            dt.Columns.Add(new DataColumn("Col4", typeof(string)));
            dt.Columns.Add(new DataColumn("Col5", typeof(string)));
            dt.Columns.Add(new DataColumn("Col6", typeof(string)));
            dt.Columns.Add(new DataColumn("Col7", typeof(string)));
            for (int i = 1; i <= (3); i++)
            {


                DataRow drCurrentRow = dt.NewRow();
               
                dr = dt.NewRow();
                dr["RowNumber"] = 1;
                dr["Col1"] = string.Empty;
                dr["Col2"] = string.Empty;
                dr["Col3"] = string.Empty;
                dr["Col4"] = string.Empty;
                dr["Col5"] = string.Empty;
                dr["Col6"] = string.Empty;
                dr["Col7"] = string.Empty;
                dt.Rows.Add(dr);

            }

Posted 11-Jan-16 20:43pm

Dj@y

Updated 11-Jan-16 20:44pm

Comments

Telstra 12-Jan-16 3:06am

Thanks for help. I got your point.

Dj@y 12-Jan-16 3:09am

best luck!

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)

DamithSL · Accepted Answer · 2016-01-11T20:40:00

try below

C#

private void CreateGridViewRows()
        {
            DataTable dt = new DataTable();
            dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
            dt.Columns.Add(new DataColumn("Col1", typeof(string)));
            dt.Columns.Add(new DataColumn("Col2", typeof(string)));
            dt.Columns.Add(new DataColumn("Col3", typeof(string)));
            dt.Columns.Add(new DataColumn("Col4", typeof(string)));
            dt.Columns.Add(new DataColumn("Col5", typeof(string)));
            dt.Columns.Add(new DataColumn("Col6", typeof(string)));
            dt.Columns.Add(new DataColumn("Col7", typeof(string)));
            for (int i = 1; i <= int.Parse(txtResources.Text.Trim()); i++)
            {
                DataRow dr = dt.NewRow();
                dr["RowNumber"] =i;
                dr["Col1"] = string.Empty;
                dr["Col2"] = string.Empty;
                dr["Col3"] = string.Empty;
                dr["Col4"] = string.Empty;
                dr["Col5"] = string.Empty;
                dr["Col6"] = string.Empty;
                dr["Col7"] = string.Empty;
                dt.Rows.Add(dr);
                
            }