Datagridview 列宽不变

Datagridview Column width not changing

这是属性 |这是图片

我似乎无法在 Datagridview 中调整我的列宽。这是我的代码：

public void dgvwidth()

  {

    crud.FillDataGrid("Select ProductID,BrandName,Dosage from ProductItems", ref dgvOrderproductlist);

    dgvOrderproductlist.Columns[0].Width = 80;

    dgvOrderproductlist.Columns[1].Width = 250;

    dgvOrderproductlist.Columns[2].Width = 80;

  }

   private void HomePage_Load(object sender, EventArgs e)

  {

    dgvwidth();

  }
  public void FillDataGrid(string sql, ref DataGridView dg)

  {

    try

    {

      DataSet ds = new DataSet();

      cn.Open();

      cmd = new SqlCommand(sql, cn);

      adptr = new SqlDataAdapter(cmd);

      adptr.Fill(ds);

      dg.DataSource ="";

      dg.DataSource = ds.Tables[0];

      dg.AutoResizeColumns();



    }

    catch (Exception e)

    {

      MessageBox.Show("" + e.Message);

    }

    cn.Close();

  }

public void dgvwidth()

{

  crud.FillDataGrid("Select ProductID,BrandName,Dosage from ProductItems", ref dgvOrderproductlist);



var column = dgvOrderproductlist.Columns[0];

column.Width = 80;



column = dgvOrderproductlist.Columns[1];

column.Width = 250;

 column =   dgvOrderproductlist.Columns[2];

 column.Width = dgvOrderproductlist.Width - dgvOrderproductlist.Columns[0].Width - dgvOrderproductlist.Columns[1].Width - 50;



}

我试图从我的表中只获取 3 列，并更改它的列宽以适合我的 Datagridview。它没有出现任何错误，但也没有改变列宽。

public void dgvwidth()

  {

    crud.FillDataGrid("Select ProductID,BrandName,Dosage from ProductItems", ref dgvOrderproductlist);

    dgvOrderproductlist.Columns[0].Width = 80;

    dgvOrderproductlist.Columns[1].Width = 250;

    dgvOrderproductlist.Columns[2].Width = 80;

  }

   private void HomePage_Load(object sender, EventArgs e)

  {

    dgvwidth();

  }
  public void FillDataGrid(string sql, ref DataGridView dg)

  {

    try

    {

      DataSet ds = new DataSet();

      cn.Open();

      cmd = new SqlCommand(sql, cn);

      adptr = new SqlDataAdapter(cmd);

      adptr.Fill(ds);

      dg.DataSource ="";

      dg.DataSource = ds.Tables[0];

      dg.AutoResizeColumns();



    }

    catch (Exception e)

    {

      MessageBox.Show("" + e.Message);

    }

    cn.Close();

  }

public void dgvwidth()

{

  crud.FillDataGrid("Select ProductID,BrandName,Dosage from ProductItems", ref dgvOrderproductlist);



var column = dgvOrderproductlist.Columns[0];

column.Width = 80;



column = dgvOrderproductlist.Columns[1];

column.Width = 250;

 column =   dgvOrderproductlist.Columns[2];

 column.Width = dgvOrderproductlist.Width - dgvOrderproductlist.Columns[0].Width - dgvOrderproductlist.Columns[1].Width - 50;



}

你能这样试试吗

public void dgvwidth()

  {

    crud.FillDataGrid("Select ProductID,BrandName,Dosage from ProductItems", ref dgvOrderproductlist);

    dgvOrderproductlist.Columns[0].Width = 80;

    dgvOrderproductlist.Columns[1].Width = 250;

    dgvOrderproductlist.Columns[2].Width = 80;

  }

   private void HomePage_Load(object sender, EventArgs e)

  {

    dgvwidth();

  }
  public void FillDataGrid(string sql, ref DataGridView dg)

  {

    try

    {

      DataSet ds = new DataSet();

      cn.Open();

      cmd = new SqlCommand(sql, cn);

      adptr = new SqlDataAdapter(cmd);

      adptr.Fill(ds);

      dg.DataSource ="";

      dg.DataSource = ds.Tables[0];

      dg.AutoResizeColumns();



    }

    catch (Exception e)

    {

      MessageBox.Show("" + e.Message);

    }

    cn.Close();

  }

public void dgvwidth()

{

  crud.FillDataGrid("Select ProductID,BrandName,Dosage from ProductItems", ref dgvOrderproductlist);



var column = dgvOrderproductlist.Columns[0];

column.Width = 80;



column = dgvOrderproductlist.Columns[1];

column.Width = 250;

 column =   dgvOrderproductlist.Columns[2];

 column.Width = dgvOrderproductlist.Width - dgvOrderproductlist.Columns[0].Width - dgvOrderproductlist.Columns[1].Width - 50;



}