我在asp.net代码中添加了按钮。但它显示为已禁用。
这是我的代码。
TableCell cell15 = new TableCell();
cell15.Width = 100;
cell15.HorizontalAlign = HorizontalAlign.Left;
Button Apply = new Button();
Apply.ID = "Apply_Button";
Apply.Text = "Apply";
Apply.Width = 50;
Apply.Height = 20;
Apply.Visible = true;
Apply.ViewStateMode = System.Web.UI.ViewStateMode.Inherit;
Apply.UseSubmitBehavior = true;
Apply.CausesValidation = true;
Apply.ClientIDMode = System.Web.UI.ClientIDMode.Inherit;
Apply.EnableTheming = true;
Apply.CausesValidation = true;
Apply.Enabled = true;
Apply.OnClientClick = Apply_Click(sender, e);
cell15.Controls.Add(Apply);
row8.Cells.Add(cell15);
生成的HTMl是：
<input type="submit" name="ctl00$MainContent$Apply_Button" value="Apply"
disabled="disabled" id="MainContent_Apply_Button" style="height:20px;width:50px;">
答案 0 :(得分：1)
int iLen = 0;
char *sTmpStr;
strcpy(sTmpStr, "abc");
或（使用javascript）：
Do you have any update panel, try to place button inside update panel
代码背后：
document.getElementById("YourButtonID").setAttribute("disabled", false);
答案 1 :(得分：0)
这是我的代码。
public partial class UpComing : System.Web.UI.Page
String sel = "SELECT Cmpny_Data.C_Name, Cmpny_Data.J_location, Cmpny_Data.Copm_desc, Cmpny_Data.J_Crtra, Cmpny_Data.Cmps_Date, Cmpny_Data.Last_date, Cmpny_Data.Elg_cTRTA FROM Cmpny_Data INNER JOIN Details ON Cmpny_Data.Elg_cTRTA < Details.cpi WHERE (Details.En_no='" + Session["uname"].ToString() + "') AND (Cmpny_Data.Last_date > SYSDATETIME()) ";
cmd2 = new SqlCommand(sel, obj.con);
dr = cmd2.ExecuteReader();
while (dr.Read())
{
C_N.Text += dr[0].ToString() + '`';
C_P.Text += dr[2].ToString() + '`';
J_C.Text += dr[3].ToString() + '`';
J_L.Text += dr[1].ToString() + '`';
E_C.Text += dr[6].ToString() + '`';
C_D.Text += dr[4].ToString() + '`';
L_D.Text += dr[5].ToString() + '`';
}
dr.Dispose();
cmd2.Dispose();
obj.con.Close();
String AllCN = C_N.Text;
String AllCP = C_P.Text;
String AllJC = J_C.Text;
String AllJL = J_L.Text;
String AllEC = E_C.Text;
String AllCD = C_D.Text;
String AllLD = L_D.Text;
char separator = '`';
String[] CNs = AllCN.Split(separator);
String[] CPs = AllCP.Split(separator);
String[] JCs = AllJC.Split(separator);
String[] JLs = AllJL.Split(separator);
String[] ECs = AllEC.Split(separator);
String[] CDs = AllCD.Split(separator);
String[] LDs = AllLD.Split(separator);
C_N.Text = null;
C_P.Text = null;
J_C.Text = null;
J_L.Text = null;
E_C.Text = null;
C_D.Text = null;
L_D.Text = null;
for (int i = 0; i < ttlq; i++)
{
TableRow row = new TableRow();
for (int j = 0; j < 1; j++)
{
TableCell cell1 = new TableCell();
cell1.Width = 100;
cell1.HorizontalAlign = HorizontalAlign.Left;
Label label1 = new Label();
label1.ID = "Lable1";
label1.Text = " Company Name : ";
cell1.Controls.Add(label1);
row.Cells.Add(cell1);
TableCell cell2 = new TableCell();
cell2.Width = 650;
cell2.HorizontalAlign = HorizontalAlign.Left;
Label C_Name = new Label();
C_Name.Width = 650;
C_Name.Height = 20;
C_Name.ID = "Cmp_Name";
C_Name.Text = CNs[i];
cell2.Controls.Add(C_Name);
row.Cells.Add(cell2);
}
table1.Rows.Add(row);
TableRow row1 = new TableRow();
for (int k = 0; k < 1; k++)
{
TableCell cell3 = new TableCell();
cell3.Width = 100;
cell3.HorizontalAlign = HorizontalAlign.Left;
Label label2 = new Label();
label2.ID = "Lable2";
label2.Text = " Company Profile : ";
cell3.Controls.Add(label2);
row1.Cells.Add(cell3);
TableCell cell4 = new TableCell();
cell4.Width = 650;
cell4.HorizontalAlign = HorizontalAlign.Left;
Label C_Prof = new Label();
C_Prof.Width = 650;
C_Prof.Height = 10;
C_Prof.ID = "Cmp_Prf";
C_Prof.Text = CPs[i];
cell4.Controls.Add(C_Prof);
row1.Cells.Add(cell4);
}
table1.Rows.Add(row1);
TableRow row2 = new TableRow();
for (int k = 0; k < 1; k++)
{
TableCell cell5 = new TableCell();
cell5.Width = 100;
cell5.HorizontalAlign = HorizontalAlign.Left;
Label label3 = new Label();
label3.ID = "Lable3";
label3.Text = " Company Profile : ";
cell5.Controls.Add(label3);
row2.Cells.Add(cell5);
TableCell cell6 = new TableCell();
cell6.Width = 650;
cell6.HorizontalAlign = HorizontalAlign.Left;
Label J_Crit = new Label();
J_Crit.Width = 650;
J_Crit.Height = 10;
J_Crit.ID = "Job_Crit";
J_Crit.Text = JCs[i];
cell6.Controls.Add(J_Crit);
row2.Cells.Add(cell6);
}
table1.Rows.Add(row2);
TableRow row3 = new TableRow();
for (int k = 0; k < 1; k++)
{
TableCell cell7 = new TableCell();
cell7.Width = 100;
cell7.HorizontalAlign = HorizontalAlign.Left;
Label label4 = new Label();
label4.ID = "Lable4";
label4.Text = " Job Location : ";
cell7.Controls.Add(label4);
row3.Cells.Add(cell7);
TableCell cell8 = new TableCell();
cell8.Width = 650;
cell8.HorizontalAlign = HorizontalAlign.Left;
Label J_Loc = new Label();
J_Loc.Width = 650;
J_Loc.Height = 10;
J_Loc.ID = "Job_Location";
J_Loc.Text = JLs[i];
cell8.Controls.Add(J_Loc);
row3.Cells.Add(cell8);
}
table1.Rows.Add(row3);
TableRow row4 = new TableRow();
for (int k = 0; k < 1; k++)
{
TableCell cell9 = new TableCell();
cell9.Width = 100;
cell9.HorizontalAlign = HorizontalAlign.Left;
Label label5 = new Label();
label5.ID = "Lable5";
label5.Text = " Eligibility Criteria : ";
cell9.Controls.Add(label5);
row4.Cells.Add(cell9);
TableCell cell10 = new TableCell();
cell10.Width = 650;
cell10.HorizontalAlign = HorizontalAlign.Left;
Label E_Crit = new Label();
E_Crit.Width = 650;
E_Crit.Height = 10;
E_Crit.ID = "Elg_Crit";
E_Crit.Text = ECs[i];
cell10.Controls.Add(E_Crit);
row4.Cells.Add(cell10);
}
table1.Rows.Add(row4);
TableRow row5 = new TableRow();
for (int k = 0; k < 1; k++)
{
TableCell cell11 = new TableCell();
cell11.Width = 100;
cell11.HorizontalAlign = HorizontalAlign.Left;
Label label6 = new Label();
label6.ID = "Lable6";
label6.Text = " Campus Date : ";
cell11.Controls.Add(label6);
row5.Cells.Add(cell11);
TableCell cell12 = new TableCell();
cell12.Width = 650;
cell12.HorizontalAlign = HorizontalAlign.Left;
Label C_Date = new Label();
C_Date.Width = 650;
C_Date.ID = "Camp_Date";
C_Date.Text = CDs[i];
cell12.Controls.Add(C_Date);
row5.Cells.Add(cell12);
}
table1.Rows.Add(row5);
TableRow row7 = new TableRow();
for (int k = 0; k < 1; k++)
{
TableCell cell13 = new TableCell();
cell13.Width = 100;
cell13.HorizontalAlign = HorizontalAlign.Left;
Label label7 = new Label();
label7.ID = "Lable7";
label7.Text = " Last Date : ";
cell13.Controls.Add(label7);
row7.Cells.Add(cell13);
TableCell cell14 = new TableCell();
cell14.Width = 650;
cell14.HorizontalAlign = HorizontalAlign.Left;
Label L_Date = new Label();
L_Date.Width = 650;
L_Date.ID = "Last_Date";
L_Date.Text = LDs[i];
cell14.Controls.Add(L_Date);
row7.Cells.Add(cell14);
}
table1.Rows.Add(row7);
TableRow row8 = new TableRow();
for (int k = 0; k < 1; k++)
{
TableCell cell15 = new TableCell();
cell15.Width = 100;
cell15.HorizontalAlign = HorizontalAlign.Left;
Button Apply = new Button();
Apply.ID = "Apply_Button";
Apply.Text = "Apply";
Apply.Width = 50;
Apply.Height = 20;
Apply.Visible = true;
Apply.ViewStateMode = System.Web.UI.ViewStateMode.Inherit;
Apply.UseSubmitBehavior = true;
Apply.CausesValidation = true;
Apply.ClientIDMode = System.Web.UI.ClientIDMode.Inherit;
Apply.EnableTheming = true;
Apply.CausesValidation = true;
Apply.Enabled = true;
Apply.Click += Apply_Click;
cell15.Controls.Add(Apply);
row8.Cells.Add(cell15);
TableCell cell16 = new TableCell(); ;
cell16.Width = 100;
cell16.HorizontalAlign = HorizontalAlign.Left;
Label Alert = new Label();
//Alert.Text = dr1.ToString();
Alert.Text = "You have applied for this campus. If you are not interested for this campus, please contact T&P Cell.";
Alert.Font.Bold = true;
cell16.Controls.Add(Alert);
row8.Cells.Add(cell16);
openConn conn = new openConn();
conn.checkdb();
String sel3 = "Select * from Student_Company where [Enrollment]='" + Session["uname"].ToString() + "' and ([Cmpny_Name]='" + CNs[i] + "')";
cmd3 = new SqlCommand(sel3, conn.con);
dr1 = cmd3.ExecuteReader();
if (dr1.HasRows)
{
Alert.Visible = true;
Apply.Visible = false;
dr1.Dispose();
cmd3.Dispose();
conn.con.Close();
}
else
{
Alert.Visible = false;
Apply.Visible = true;
}
}
table1.Rows.Add(row8);
//table1.BorderWidth = 1;
}
}
}
protected void Apply_Click(object sender, EventArgs e)
{
openConn obj = new openConn();
obj.checkdb();
cmd4 = new SqlCommand("Insert into Student_Company Values('" + Session["uname"].ToString() + "', '" + C_Name.Text + "')", obj.con);
cmd4.ExecuteNonQuery();
cmd4.Dispose();
obj.con.Close();
}
}