datagridview中的数据清除错误 [英] data clearance error in datagridview

问题描述

这是代码部分

here is the code part

private void btnSearch_Click(object sender, EventArgs e)
        {
           //dgvSearch.Rows.Clear();
           
            int name = Convert.ToInt32(cboxJewlName.SelectedValue);
            int material=Convert.ToInt32(cboxJewlMaterial.SelectedValue) ;
           DataTable table = Bllcombohelper.getAllSelectedJewl(name, material);
           int roows=table.Rows.Count;
            int j=0;
            while (j < roows)
            {
                if (j > 14)
                {
 

                    dgvSearch.Rows.Add(1);
                   dgvSearch.ScrollBars = ScrollBars.Vertical;
                  
 
                }
                dgvSearch.Rows[j].Cells[0].Value = table.Rows[j].ItemArray[0].ToString();
                dgvSearch.Rows[j].Cells[1].Value = table.Rows[j].ItemArray[5].ToString();
                dgvSearch.Rows[j].Cells[2].Value = table.Rows[j].ItemArray[6].ToString();
                dgvSearch.Rows[j].Cells[3].Value=table.Rows[j].ItemArray[7].ToString()+"/-";
                dgvSearch.Rows[j].Cells[4].Value = table.Rows[j].ItemArray[4].ToString();
 
                j = j + 1;
 
 
            }
     //table.Clear();
  }

我用了dgvSearch.Rows.Clear();
在上面评论的位置，但没有成功

also i tried table.Clear();
在上面的位置评论中，但它也没有帮助.

我应该怎么做，以便在下次单击搜索按钮时，首先清除datagridview的旧值...然后处理，以显示具有某些不同属性的搜索项

感谢您的帮助

i used dgvSearch.Rows.Clear();
in the position commented above but it didn''t work

also i tried table.Clear();
in the postion comment above but it also didn;t helped.

what should i do so that on the next click of search button the old value of datagridview first get cleared...and then procced to display the search item with some diffrent attribute

thank u for ur help

推荐答案

尝试

table.Clear();
dgvSearch.DataSource = table;

private void btnSearch_Click(object sender, EventArgs e)
{
 dgvSearch.DataSource = null;
 dgvSearch.Rows.Clear();
 dgvSearch.Columns.Clear();

// Your code
}

希望这会有所帮助！

Hope this helps!

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