C# DataGridView相关操作

全选

private void SelectAll_Click(object sender, EventArgs e)
{
    for (int i = 0; i < MedicalList.Rows.Count; i++)
    {
        if ((Convert.ToBoolean(MedicalList.Rows[i].Cells[0].Value) == false))
        {
            MedicalList.Rows[i].Cells[0].Value = "True";
        }
        else
            continue;
    }
}

取消全选

private void UnSelectAll_Click(object sender, EventArgs e)
{
    for (int i = 0; i < MedicalList.Rows.Count; i++)
    {
        if ((Convert.ToBoolean(MedicalList.Rows[i].Cells[0].Value) == true))
        {
            MedicalList.Rows[i].Cells[0].Value = "False";
        }
        else
            continue;
    }
}

获取所有行数据

public static void UploadMedicalTh()
{
    try
    {
        UploadMedicalT = true;
        int k = 0, j = 0;
        for (int i = 0; i < Convert.ToInt32(ThirdParty_Main.MedicalList.Rows.Count.ToString()); i++)
        {

            ThirdParty_Main.MedicalList.EndEdit();
            if (!Convert.ToBoolean(((System.Windows.Forms.DataGridViewCheckBoxCell)ThirdParty_Main.MedicalList.Rows[i].Cells["选择"]).Value))
            {
                string out = ThirdParty_Main.MedicalList.Rows[i].Cells["内容"];
            }
            else
            {
                j++;
            }
        }

    }
    catch (Exception)
    {

    }
    finally
    {
        UploadMedicalT = false;
    }
}

DataGridView转DataTable

public static DataTable GetDgvToTable(DataGridView dgv)
{
    DataTable dt = new DataTable();

    for (int count = 0; count < dgv.Columns.Count; count++)
    {
    DataColumn dc = new DataColumn(dgv.Columns[count].Name.ToString());
    dt.Columns.Add(dc);
    }
    for (int count = 0; count < dgv.Rows.Count; count++)
    {
    DataRow dr = dt.NewRow();
    for (int countsub = 0; countsub < dgv.Columns.Count; countsub++)
    {
    dr[countsub] = Convert.ToString(dgv.Rows[count].Cells[countsub].Value);
    }
    dt.Rows.Add(dr);
    }
    return dt;
}

动态关联关键字筛选

   
public static System.Data.DataTable UserListTable = new System.Data.DataTable();

private void Status_SelectedIndexChanged(object sender, EventArgs e)
{
    if (Status.Text == "全部")
    {
        ThirdParty_Main.MedicalList.Rows.Clear();
        foreach (System.Data.DataRow Lists in UserListTable.Rows)
        {
            int index = ThirdParty_Main.MedicalList.Rows.Add(new DataGridViewRow());
            ThirdParty_Main.MedicalList.Rows[index].Cells["状态"].Value = Lists["状态"];
        }
        ThirdParty_Main.MedicalList.EnableHeadersVisualStyles = false;
        ThirdParty_Main.MedicalList.ColumnHeadersDefaultCellStyle.Font = new System.Drawing.Font("黑体", 10, System.Drawing.FontStyle.Bold);
        ThirdParty_Main.MedicalList.ColumnHeadersDefaultCellStyle.ForeColor = System.Drawing.Color.Purple;
    }
    else
    {
        System.Data.DataTable mydataTable = new System.Data.DataTable();
        System.Data.DataTable dt = UserListTable;
        DataView dv = dt.DefaultView;
        dv.RowFilter = string.Format("状态 = '{0}'", Status.Text);
        mydataTable = dv.ToTable(true);
        ThirdParty_Main.MedicalList.Rows.Clear();
        foreach (System.Data.DataRow Lists in mydataTable.Rows)
        {
            int index = ThirdParty_Main.MedicalList.Rows.Add(new DataGridViewRow());
            ThirdParty_Main.MedicalList.Rows[index].Cells["状态"].Value = Lists["状态"];
        }
        ThirdParty_Main.MedicalList.EnableHeadersVisualStyles = false;
        ThirdParty_Main.MedicalList.ColumnHeadersDefaultCellStyle.Font = new System.Drawing.Font("黑体", 10, System.Drawing.FontStyle.Bold);
        ThirdParty_Main.MedicalList.ColumnHeadersDefaultCellStyle.ForeColor = System.Drawing.Color.Purple;
    }
}

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