Adding List<string> to DataGridView
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Thread: Adding List<string> to DataGridView

  1. #1
    Join Date
    Nov 2007
    Posts
    5

    Adding List<string> to DataGridView

    Hello All,

    I created a Class Library and I am trying to add data from a string to a DataGridViewer.

    The string is in the format as follows:

    "Test, 1", "Glucose", "10/24/2013 10:00"; "Test, 2", "BUN", "10/25/2013 11:00"

    I am passing the string from another program. I then an making it into a list and then trying to
    add it to the DataTable but no such luck. I created the datagridviewer with four columns.

    1. Selected - Checkbox
    2. Patient Name - String
    3. Order Name - String
    4. Order Date - String
    5. Reason - Combo Box

    I am getting an error that the list is greater than the number of columns.

    Note...I can make the string anyway I want before passing to this program so if I need to do
    something with the string before passing it to the program, please let me know. If I need to
    post anything else, please let me know.

    I just wantt he data to display and I will work on the rest of it.

    Any help would be appreciated.

    Thank you,
    Tony

    This is the Designer Code
    Code:
    namespace TEST.RenewOrders
    {
        partial class RenewOrders
        {
            /// <summary>
            /// Required designer variable.
            /// </summary>
            private System.ComponentModel.IContainer components = null;
    
            /// <summary>
            /// Clean up any resources being used.
            /// </summary>
            /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
            protected override void Dispose(bool disposing)
            {
                if (disposing && (components != null))
                {
                    components.Dispose();
                }
                base.Dispose(disposing);
            }
    
            #region Windows Form Designer generated code
    
            /// <summary>
            /// Required method for Designer support - do not modify
            /// the contents of this method with the code editor.
            /// </summary>
            private void InitializeComponent()
            {
                this.dataGridView1 = new System.Windows.Forms.DataGridView();
                this.dgvSelect = new System.Windows.Forms.DataGridViewCheckBoxColumn();
                this.dgvPatientName = new System.Windows.Forms.DataGridViewTextBoxColumn();
                this.dgvOrderName = new System.Windows.Forms.DataGridViewTextBoxColumn();
                this.dgvOrderDateTime = new System.Windows.Forms.DataGridViewTextBoxColumn();
                this.dgvReason = new System.Windows.Forms.DataGridViewComboBoxColumn();
                this.btnOK = new System.Windows.Forms.Button();
                this.btnCancel = new System.Windows.Forms.Button();
                this.btnSelectAll = new System.Windows.Forms.Button();
                ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
                this.SuspendLayout();
                // 
                // dataGridView1
                // 
                this.dataGridView1.AllowUserToDeleteRows = false;
                this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
                this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
                this.dgvSelect,
                this.dgvPatientName,
                this.dgvOrderName,
                this.dgvOrderDateTime,
                this.dgvReason});
                this.dataGridView1.Location = new System.Drawing.Point(12, 12);
                this.dataGridView1.Name = "dataGridView1";
                this.dataGridView1.Size = new System.Drawing.Size(695, 311);
                this.dataGridView1.TabIndex = 0;
                // 
                // dgvSelect
                // 
                this.dgvSelect.HeaderText = "Selected";
                this.dgvSelect.Name = "dgvSelect";
                this.dgvSelect.ToolTipText = "Click to Renew Order";
                this.dgvSelect.Width = 52;
                // 
                // dgvPatientName
                // 
                this.dgvPatientName.HeaderText = "Patient Name";
                this.dgvPatientName.Name = "dgvPatientName";
                this.dgvPatientName.Width = 175;
                // 
                // dgvOrderName
                // 
                this.dgvOrderName.HeaderText = "Order Name";
                this.dgvOrderName.Name = "dgvOrderName";
                this.dgvOrderName.Width = 125;
                // 
                // dgvOrderDateTime
                // 
                this.dgvOrderDateTime.HeaderText = "Order Date/Time";
                this.dgvOrderDateTime.Name = "dgvOrderDateTime";
                this.dgvOrderDateTime.Width = 125;
                // 
                // dgvReason
                // 
                this.dgvReason.HeaderText = "Renewal Reason";
                this.dgvReason.Name = "dgvReason";
                this.dgvReason.ToolTipText = "Select a Reason to Renew Order";
                this.dgvReason.Width = 175;
                // 
                // btnOK
                // 
                this.btnOK.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
                this.btnOK.Location = new System.Drawing.Point(12, 342);
                this.btnOK.Name = "btnOK";
                this.btnOK.Size = new System.Drawing.Size(79, 41);
                this.btnOK.TabIndex = 1;
                this.btnOK.Text = "OK";
                this.btnOK.UseVisualStyleBackColor = true;
                // 
                // btnCancel
                // 
                this.btnCancel.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
                this.btnCancel.Location = new System.Drawing.Point(140, 342);
                this.btnCancel.Name = "btnCancel";
                this.btnCancel.Size = new System.Drawing.Size(82, 41);
                this.btnCancel.TabIndex = 2;
                this.btnCancel.Text = "Cancel";
                this.btnCancel.UseVisualStyleBackColor = true;
                // 
                // btnSelectAll
                // 
                this.btnSelectAll.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
                this.btnSelectAll.Location = new System.Drawing.Point(616, 342);
                this.btnSelectAll.Name = "btnSelectAll";
                this.btnSelectAll.Size = new System.Drawing.Size(91, 41);
                this.btnSelectAll.TabIndex = 3;
                this.btnSelectAll.Text = "Select All";
                this.btnSelectAll.UseVisualStyleBackColor = true;
                // 
                // RenewOrders
                // 
                this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
                this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
                this.ClientSize = new System.Drawing.Size(717, 395);
                this.Controls.Add(this.btnSelectAll);
                this.Controls.Add(this.btnCancel);
                this.Controls.Add(this.btnOK);
                this.Controls.Add(this.dataGridView1);
                this.Name = "RenewOrders";
                this.Text = "Renew Orders";
                this.Load += new System.EventHandler(this.RenewOrders_Load);
                ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
                this.ResumeLayout(false);
    
            }
    
            #endregion
    
            private System.Windows.Forms.DataGridView dataGridView1;
            private System.Windows.Forms.Button btnOK;
            private System.Windows.Forms.Button btnCancel;
            private System.Windows.Forms.Button btnSelectAll;
            private System.Windows.Forms.DataGridViewCheckBoxColumn dgvSelect;
            private System.Windows.Forms.DataGridViewTextBoxColumn dgvPatientName;
            private System.Windows.Forms.DataGridViewTextBoxColumn dgvOrderName;
            private System.Windows.Forms.DataGridViewTextBoxColumn dgvOrderDateTime;
            private System.Windows.Forms.DataGridViewComboBoxColumn dgvReason;
        }
    }
    This is the program
    Code:
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Data.SqlClient;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;
    using SCMLib;
    using SCMLib.Context;
    
    namespace TEST.RenewOrders
    {
        public partial class RenewOrders : Form
        {
            public static string strAllPatientData = string.Empty;
            public static string strMLMPatientData = string.Empty;
            public string selected_patient_data
            {
                get
                {
                    return strAllPatientData;
                }
            }
    
            public RenewOrders(string all_patient_data)
            {
                InitializeComponent();
                strMLMPatientData = all_patient_data;
            }
    
            private void RenewOrders_Load(object sender, EventArgs e)
            {    
                this.ConvertStringToList(strMLMPatientData);
            }
    
            private void ConvertStringToList(string strMLMPatientData)
            {
                List<string> patient_list = new List<string>(strMLMPatientData.Split(';'));
                DataTable dtTable = ConvertListToDataTable(patient_list);
    	        dataGridView1.DataSource = dtTable;
            }
    
             // Convert to DataTable.
    	    static DataTable ConvertListToDataTable(List<string> patient_list)
    	    {
    	        // New table.
    	    DataTable dtTable = new DataTable();
    
    	    // Add rows.
    	    foreach (var array in patient_list)
    	    {
    		dtTable.Rows.Add(array);
    	    }
    
    	    return dtTable;
        }
    }

  2. #2
    Arjay's Avatar
    Arjay is offline Moderator / MS MVP Power Poster
    Join Date
    Aug 2004
    Posts
    11,289

    Re: Adding List<string> to DataGridView

    The first thing to do is get away from the string format and into an object (i.e. Order object).

    So parse the string and create a collection of Order objects.
    Code:
    List<Order> _orders
    . Then bind the list to the DataGridView.

    In general, it's good practice to do any [string] conversions up front and all in one place rather than having string parsing peppered throughout your code.

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