当select语句保存在where语句中时，Select语句仅按复选框进行搜索

时间：2017-11-16 06:11:42

标签： c# asp.net entity-framework linq

我在textboxes中有21个checkboxes和25个winform，我希望能够输入这些textboxes并检查checkboxes并拥有执行语句时返回的相应记录。此时，只要我在where子句中引用了没有checkboxes的select语句，我就可以通过任何textbox进行搜索并正常返回我的记录，但是当我通过{{1}添加搜索时除了已经选中checkbox的记录之外，不会返回任何记录。因此，如果我在checkboxes中输入任何内容并且未检查textboxes，我仍会收到未找到记录的消息。

checkbox

然而，即使我没有在where子句中包含复选框，我仍然得到{ con.Open(); string str = "select * from engineering where (JobNumber like '%' + @search + '%' AND DateOrdered like '%' + @search1 + '%' AND Title like '%' + @search2 + '%' AND PhysicalAddressComplete like '%' + @search3 + '%' AND County like '%' + @search4 + '%' AND Client like '%' + @search5 + '%' AND Contact like '%' + @search6 + '%' AND ContactTitle like '%' + @search7 + '%' AND MailingAddressComplete like '%' + @search8 + '%' AND BusinessPhone like '%' + @search9 + '%' AND CellPhone like '%' + @search10 + '%' AND Email like '%' + @search11 + '%' AND OpenStatus like '%' + @search12 + '%' AND CloseStatus like '%' + @search13 + '%' AND Cabinet like '%' + @search14 + '%' AND Roll like '%' + @search15 + '%' AND Drawer like '%' + @search16 + '%' AND ConstructionDrawings like '%' + @search17 + '%' AND Fee like '%' + @search18 + '%' AND ConstructionCost like '%' + @search19 + '%' AND ProjectDescription like '%' + @search20 + '%' AND DesignBuild like " + DesignBuild + " )"; SqlCommand xp = new SqlCommand(str, con); xp.Parameters.Add("@search", SqlDbType.NVarChar).Value = txtProjectNumber.Text; xp.Parameters.Add("@search1", SqlDbType.NVarChar).Value = txtDateOrdered.Text; xp.Parameters.Add("@search2", SqlDbType.NVarChar).Value = txtProjectName.Text; xp.Parameters.Add("@search3", SqlDbType.NVarChar).Value = txtProjectAddress.Text; xp.Parameters.Add("@search4", SqlDbType.NVarChar).Value = txtCounty.Text; xp.Parameters.Add("@search5", SqlDbType.NVarChar).Value = txtClient.Text; xp.Parameters.Add("@search6", SqlDbType.NVarChar).Value = txtClientContact.Text; xp.Parameters.Add("@search7", SqlDbType.NVarChar).Value = txtContactTitle.Text; xp.Parameters.Add("@search8", SqlDbType.NVarChar).Value = txtBillingAddress.Text; xp.Parameters.Add("@search9", SqlDbType.NVarChar).Value = txtBusinessPhone.Text; xp.Parameters.Add("@search10", SqlDbType.NVarChar).Value = txtCellPhone.Text; xp.Parameters.Add("@search11", SqlDbType.NVarChar).Value = txtEmail.Text; xp.Parameters.Add("@search12", SqlDbType.NVarChar).Value = txtOpenStatus.Text; xp.Parameters.Add("@search13", SqlDbType.NVarChar).Value = txtCloseStatus.Text; xp.Parameters.Add("@search14", SqlDbType.NVarChar).Value = txtCabinet.Text; xp.Parameters.Add("@search15", SqlDbType.NVarChar).Value = txtRoll.Text; xp.Parameters.Add("@search16", SqlDbType.NVarChar).Value = txtDrawer.Text; xp.Parameters.Add("@search17", SqlDbType.NVarChar).Value = txtDrawings.Text; xp.Parameters.Add("@search18", SqlDbType.NVarChar).Value = txtFee.Text; xp.Parameters.Add("@search19", SqlDbType.NVarChar).Value = txtCost.Text; xp.Parameters.Add("@search20", SqlDbType.NVarChar).Value = txtProjectDescription.Text; try { da = new SqlDataAdapter(); da.SelectCommand = xp; da.Fill(ss); Showdata(pos); if (ss.Rows.Count >0) { this.chkEducational.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Education"] == 1); this.chkDesign.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["DesignBuild"] == 1); this.chkMedical.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Medical"] == 1); this.chkReligious.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Religious"] == 1); this.chkMulti.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["MultiFamily"] == 1); this.chkStudent.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Student"] == 1); this.chkAssisted.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Assisted"] == 1); this.chkSingleFamily.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Single"] == 1); this.chkBridge.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Bridge"] == 1); this.chkIntersection.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Intersection"] == 1); this.chkRoadway.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Roadway"] == 1); this.chkTransOther.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["TransportationOther"] == 1); this.chkRetailSmall.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["SmallRetail"] == 1); this.chkRetailLarge.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["LargeRetail"] == 1); this.chkParks.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Parks"] == 1); this.chkIndustrial.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Industrial"] == 1); this.chkUtility.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Utility"] == 1); this.chkGCSmall.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["GCSmall"] == 1); this.chkGCLarge.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["GCLarge"] == 1); this.chkOffice.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Office"] == 1); this.chkOther.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Other"] == 1); this.chkMunicipal.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Municipal"] == 1); this.chkPrivate.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Privates"] == 1); this.chkInstitutional.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Institutional"] == 1); this.chkMilitary.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Military"] == 1); } } catch { MessageBox.Show("No Record Found"); } con.Close(); } ，然后一旦我点击该消息框，我的结果就会显示出来。任何有关这两个问题的帮助都会很棒。

1 个答案:

答案 0 :(得分：0)

您是否尝试在检查if (ss.Rows.Count >0)

的位置调试代码 
this.chkEducational.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Education"] == 1);
                this.chkDesign.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["DesignBuild"] == 1);
                this.chkMedical.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Medical"] == 1);
                this.chkReligious.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Religious"] == 1);
                this.chkMulti.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["MultiFamily"] == 1);
                this.chkStudent.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Student"] == 1);
                this.chkAssisted.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Assisted"] == 1);
                this.chkSingleFamily.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Single"] == 1);
                this.chkBridge.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Bridge"] == 1);
                this.chkIntersection.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Intersection"] == 1);
                this.chkRoadway.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Roadway"] == 1);
                this.chkTransOther.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["TransportationOther"] == 1);
                this.chkRetailSmall.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["SmallRetail"] == 1);
                this.chkRetailLarge.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["LargeRetail"] == 1);
                this.chkParks.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Parks"] == 1);
                this.chkIndustrial.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Industrial"] == 1);
                this.chkUtility.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Utility"] == 1);
                this.chkGCSmall.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["GCSmall"] == 1);
                this.chkGCLarge.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["GCLarge"] == 1);
                this.chkOffice.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Office"] == 1);
                this.chkOther.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Other"] == 1);
                this.chkMunicipal.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Municipal"] == 1);
                this.chkPrivate.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Privates"] == 1);
                this.chkInstitutional.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Institutional"] == 1);
                this.chkMilitary.Checked = ((int)ss.AsEnumerable().FirstOrDefault()["Military"] == 1);

你的代码在某个地方破坏了，这就是它显示错误的原因。

您能否分享屏幕截图以及数据集中ss

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