加载水晶报告时出现闪烁问题 [英] Flickering Problem while loading crystal report

问题描述

我在使用datagridview的数据加载水晶报告时出现了闪烁问题。当闪烁程序冻结，直到加载完成。我该如何解决这个问题？感谢您的帮助。

这是我的代码

 DataSet4 ds =  new  DataSet4（）; 
 DataTable t = ds.Tables.Add（  stock）; 
 t.Columns.Add（  Item_Name，Type.GetType（  System.String））; 
 t.Columns.Add（  Store，Type.GetType（  System.String））; 
 t.Columns.Add（  Total_Stock，Type.GetType（  System.String））; 
 t.Columns.Add（  Product_Code，Type.GetType（  System.String））; 
 t.Columns.Add（ 其中，Type.GetType（  System.String））; 
 
 DataRow r; 
 
  string  ItemName =  string  .Empty; 
  string  sto =  string  .Empty; 
  string  totostok =  string  .Empty; 
  string  pcode =  string  .Empty; 
  string  wich =  string  .Empty; 
 
  for （ int  i =  0 ; i <  dataGridView1.RowCount; i ++）
 {
 pcode = dataGridView1.Rows [i] .Cells [  0 ]。Value.ToString（）; 
 ItemName = dataGridView1.Rows [i] .Cells [ 1 ]。Value.ToString（）; 
 sto = dataGridView1.Rows [i] .Cells [ 2 ]。Value.ToString（）; 
 totostok = dataGridView1.Rows [i] .Cells [ 3 ]。Value.ToString（）; 
 wich = cmbFilter.Text; 
 
 r = t.NewRow（）; 
 r [  Product_Code] = pcode; 
 r [  Item_Name] = ItemName; 
 r [  Store] = sto; 
 r [  Total_Stock] = totostok; 
 r [ 其中] = wich; 
 t.Rows.Add（r）; 
 
 CrystalReport4 objRpt =  new  CrystalReport4（）; 
 objRpt.SetDataSource（ds.Tables [ 1 ]）; 
 crystalReportViewer1.ReportSource = objRpt; 
 crystalReportViewer1.Dock = DockStyle.Fill; 
 crystalReportViewer1.Refresh（）; 
 crystalReportViewer1.Show（）; 
} 
 

解决方案

我建​​议你添加以下元标记：

< meta http-equiv =   Page-输入 content =   blendTrans（Duration = 0） >  
< meta http-equiv =   Page-Exit  content =   blendTrans（Duration = 0） >  

覆盖表单的 create-param属性，

< pre lang =C＃> /// < 摘要 >
/ // 这个方法是为了避免在加载时间表时出现问题
/// < / summary >
/// < ; value > < / value >
/// < 返回 > < / returns >
/// < span class =code-summarycomment>< 备注 > < /备注 >
protected 覆盖 CreateParams CreateParams {
get {
CreateParams cp = base .CreateParams;
cp.ExStyle = cp.ExStyle | 0x2000000;
return cp;
}
}
// CreateParams

快乐编码！

：）

Hi,
I have a flickering problem while loading crystal report with data from a datagridview. And when flickering the program freezes until loading is complete. How can i resolve this problem?? Thank you for any help.
Here is my code

DataSet4 ds = new DataSet4();
DataTable t = ds.Tables.Add("stock");
t.Columns.Add("Item_Name", Type.GetType("System.String"));
t.Columns.Add("Store", Type.GetType("System.String"));
t.Columns.Add("Total_Stock", Type.GetType("System.String"));
t.Columns.Add("Product_Code", Type.GetType("System.String"));
t.Columns.Add("Which", Type.GetType("System.String"));

DataRow r;

string ItemName = string.Empty;
string sto = string.Empty;
string totostok = string.Empty;
string pcode = string.Empty;
string wich = string.Empty;

for (int i = 0; i < dataGridView1.RowCount; i++)
{
    pcode = dataGridView1.Rows[i].Cells[0].Value.ToString();
    ItemName = dataGridView1.Rows[i].Cells[1].Value.ToString();
    sto = dataGridView1.Rows[i].Cells[2].Value.ToString();
    totostok = dataGridView1.Rows[i].Cells[3].Value.ToString();
    wich = cmbFilter.Text;

    r = t.NewRow();
    r["Product_Code"] = pcode;
    r["Item_Name"] = ItemName;
    r["Store"] = sto;
    r["Total_Stock"] = totostok;
    r["Which"] = wich;
    t.Rows.Add(r);

    CrystalReport4 objRpt = new CrystalReport4();
    objRpt.SetDataSource(ds.Tables[1]);
    crystalReportViewer1.ReportSource = objRpt;
    crystalReportViewer1.Dock = DockStyle.Fill;
    crystalReportViewer1.Refresh();
    crystalReportViewer1.Show();
}

解决方案

I suggest you add the following meta tags:

<meta http-equiv="Page-Enter" content="blendTrans(Duration=0)">
<meta http-equiv="Page-Exit" content="blendTrans(Duration=0)">

override create-param property of form,

/// <summary>
/// This method written for avoid flikering while loading timetable
/// </summary>
/// <value></value>
/// <returns></returns>
/// <remarks></remarks>
protected override CreateParams CreateParams {
    get {
        CreateParams cp = base.CreateParams;
        cp.ExStyle = cp.ExStyle | 0x2000000;
        return cp;
    }
}
//CreateParams

Happy Coding!
:)

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