add values of datatable to DataGridView c#

Posted on 2009-05-09
Medium Priority
Last Modified: 2012-05-06
hi all,

I have a datatable wich contains +20 columns. I need all the data from these columns but I only want to display 5 of them in my DataGridView.
So I've created  5 columns in the DGV and try to add the values of the specified columns in the datatable to it.
Problem 1: I only get the column name in the dgvcolumns instead of the value.
Problem 2: when I doubleClick a Row in the DGV I want to get all the +20 columns from the datatable in local vars.

Below some code how I try to fill my DGV with the 5 columns from the DT.

And how can I solve problem nr2?


DataSet DsDocs = _LocalDocBLL.GetDocuments(1);
        if (DsDocs.Tables[0].Rows.Count > 0)
          // fill dataGridView
          //dataGridViewOffertes.DataSource = DsDocs.Tables[0];
          DataTable myDT = DsDocs.Tables[0];
         for (int i = 0; i < myDT.Rows.Count; i++)
           dataGridViewOffertes.Rows[i].Cells["id"].Value = myDT.Columns["doc_id"];
           dataGridViewOffertes.Rows[i].Cells["bedrag"].Value = myDT.Columns["doc_eindBedragDocument"];

Open in new window

Question by:Pit76
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
LVL 12

Accepted Solution

Munawar Hussain earned 1500 total points
ID: 24345218

there could be a lots of possibilities . here is one out of them.

Create dataset or datatable.
bind datatable to gridview but make the columns mapping hidden that you dont want to be displayed.

like this

 DsDocs.Tables[0].Columns[0].ColumnMapping = MappingType.Hidden;
 DsDocs.Tables[0].Columns[1].ColumnMapping = MappingType.Hidden;


Now to get values in doubleClick.... just use the currentRow.Index to get specific data row from table

like this
private void dataGridViewOffertes_CellMouseDoubleClick(object sender, DataGridViewCellMouseEventArgs e)
            string myfirstColumnVAlue =DsDocs.Tables [0].Rows [e.RowIndex ]["< name of first column >"]
            string my2ndColumnVAlue =DsDocs.Tables [0].Rows [e.RowIndex ]["< name of 2nd column >"]

I have made DsDocs a class member instead loacal, so that its available on whole form.



Author Comment

ID: 24347382
Hi,  thx for your comment.

I was able to solve problem nr 2 on  my own. I just take the value of the ID column of the doubleClicked row and then perform a Select on my DT to search for the row with the matiching ID.
Then I fill a structure with the values of the row found.

About problem nr1: tried your solution on a number of columns and that works. But I only want 5 columns of the 40 in my dataset to show up in the DGV. So this would be lot's of work to do it like this.

Can you see what I'm doing wrong in my original solution. I want to loop throught the DS and add for each row find the values of the 5 columns to the DGV. It works but I don't get the value, only the rowheadertext shows up in all rows.

// Solution prob nr2
// Get doc_id selected document
      DataGridViewRow dr = dataGridViewOffertes.SelectedRows[0];
      int doc_Id = Convert.ToInt32(dr.Cells["id"].Value);
      // find DataTableRow with the doc_id in myDT
      DataRow[] row = myDT.Select("[doc_id] = " + doc_Id);
      // fill docStruct with values from myDT
      #region Fill docStruct
      docStruct.id = Convert.ToInt32(row[0]["doc_id"]);
      docStruct.type_id = Convert.ToInt32(row[0]["doc_type_id"]);
      docStruct.btw_id = Convert.ToInt32(row[0]["doc_btw_id"]);
for (int i = 0; i < myDT.Rows.Count; i++)
           dataGridViewOffertes.Rows[i].Cells["id"].Value = myDT.Columns["doc_id"];
           dataGridViewOffertes.Rows[i].Cells["bedrag"].Value = myDT.Columns["doc_eindBedragDocument"];

Open in new window


Author Comment

ID: 24347465

I found the solution to my first prob to.
I needed to map the column value from my dataset to the DGV like this instead of what I tried earlier.

Grts and thx for your help on a saturday :)

dataGridViewOffertes.Rows[i].Cells["id"].Value = DsDocs.Tables[0].Rows[i]["doc_id"] ;

Open in new window


Author Closing Comment

ID: 31579759
I found the answers myself but thx for your time. :)
LVL 12

Expert Comment

by:Munawar Hussain
ID: 24351078

nice to know that you was able to resolve....

I was not online when you posted comments otherwise I could have posted response as the issue was not very critical



Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Extention Methods in C# 3.0 by Ivo Stoykov C# 3.0 offers extension methods. They allow extending existing classes without changing the class's source code or relying on inheritance. These are static methods invoked as instance method. This…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses

764 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question